Tuesday, July 26, 2011

The Trouble with Erlang (or Erlang is a ghetto)


This is a blog post I have been meaning to write for quite some time. I lament doing so because I've made a considerable time investment into the Erlang infrastructure and really love some of its ideas. Erlang has done a great and still unique job of synthesizing a number of concepts in a very interesting way. But after using the platform in various capacities for some 4 years now, there are some glaring issues I think need to be called out.

Records suck and there's no struct/map data structure

Erlang has a feature called "records" which uses the preprocessor to give you something akin to a struct or map, i.e. a way to access named fields of a particular object/term within the system. As far as I can tell, there's pretty much universal agreement within the community that this is a huge limitation, and several proposals have been made to remedy the problem. The requested feature has typically been referred to as a "frame", and several proposals for implementing frames have been floating around for several years. Yet no action has been taken on the problem.

So why doesn't Erlang have frames? While Erlang is an open source project, its implementation and release cycle are managed by Ericsson, the company that created it, and Ericsson just doesn't seem to care. I'm not sure what Ericsson's priorities are when it comes to adding features to Erlang, but in my opinion they're doing a worse job of engaging the community than Oracle has been doing with Java. I hate Oracle as a company, but so far it feels like they've actually done a fairly good job managing Java development and moving Java forward. I can't say that at all with Ericsson, and frames are the quintessential example of this.

Erlang sucks at managing memory

Once upon a time I looked upon BEAM's design as the future pattern all virtual machines would follow. I strongly encourage you to read that post before taking issue with anything I have to say in regard to this matter. I have completely reversed my opinion since the time I write that post.

The other night I tweeted "If you're looking for a language that gets multicore concurrency right, look at how Azul implemented Java on their Vega architecture" and I definitely stand by that. Azul is a company that got a lot of smart hardware and software people together and had them work on designing a custom system which would scale to hundreds of CPU cores (up to 768 of them), heaps that topped 500 GB (up to 768GB), and had the GC pause only 10-20ms at a time. The realtime performance characteristics Azul managed to eek out of their system lead them to often describe their GC as "pauseless".

Where Azul was scaling up to 768 CPUs in 2007, Erlang was crapping out around 15 CPUs in 2009. For everything Erlang had to say about the importance of immutability and messaging in concurrent systems, and despite Joe Armstrong's promise that "your Erlang program should just run N times faster on an N core processor," it turns out that on the Erlang VM the N core processor promise had an upper bound of around 15.

Why is this? Erlang implements its own memory allocator and can't take advantage of libraries like tcmalloc to provide better multithreaded heap management. I can't fault a language VM like BEAM for doing this save for the fact that what Erlang provides is relatively crappy.

Erlang has done a fairly decent job given the constraints it was working within. Erlang wanted to provide a soft realtime system, and managed to create one that works on commodity architectures, unlike the Azul Vega appliances which require custom hardware. However, Azul has managed to port their version of the JVM to x86 hardware with their Zing Architecture, which wraps the JVM in a separate runtime container which uses software transactional memory to replace the hardware transactional memory found on the Vega appliances. It's higher overhead but provides similar guarantees. Java also provides the RTSJ specification for building realtime systems in Java.

Both Zing and RTSJ demonstrate that Erlang's approach to building a realtime garbage collected system, using separate heaps per process, isn't necessary to still provide realtime characteristics. Erlang's approach of using separate heaps is nonstandard and comparatively hard to optimize because most other systems are using a shared heap model. Azul's Vega architecture shows that shared heaps can scale up to hundreds of CPU cores and hundreds of gigabytes of heap while still providing realtime characteristics. Even more exciting is that AMD's Fusion architecture, which they're implementing in conjunction with ARM, provides read and write barriers at the hardware level necessary to provide a system like Azul using commodity hardware.

However, I think everything I just said is moot for the majority of applications. People building messaging systems want the best performance possible but don't typically have software realtime constraints. The Erlang VM's approach to soft realtime made a design decision which hampers its messaging speed, namely the use of separate heaps, which requires messages be copied from one heap to another. This means the Erlang VM does not provide zero-copy messaging. Every time you send a message from one Erlang process to another, some amount of data must be copied.

Erlang has partly mitigated this problem by providing a separate shared heap for binaries, which are the Erlang type for arbitrary blobs of binary data. This means if you ensure the majority of data you move around doesn't contain anything of significant size except binaries, perhaps this won't be a problem. However, if you're moving large collections of numbers around (Erlang's strings-as-lists-of-integers come to mind), messaging will be comparatively slow compared to a zero copy system.

Various solutions to this have been proposed for BEAM, such as switching from a shared-nothing heap to a shared heap or a hybrid heap (where message-passed objects are copied once), however the Erlang garbage collector is not suitable for managing shared/hybrid heaps and would need to be rewritten for the task, and nobody has managed to get the shared/hybrid heaps working with Erlang's SMP scheduler, or rewritten the garbage collector to be more suitable to the task of managing a shared/hybrid heap.

A potential solution to this? Erjang, an implementation of Erlang on the JVM, provides zero copy messaging using the Kilim library for lightweight threads.

JIT? What JIT?

Erlang has a "JIT" compiler called HiPE, which is mostly hype. I put JIT in quotes because HiPE is mostly an Erlang-to-native-code compiler with a limited set of backends which does a pretty bad job of optimizing and can't use runtime profiling information to improve the quality of the native code it generates in the way JIT compilers like HotSpot are able to. Calling HiPE a just-in-time compiler is a stretch as it is for most part an ahead-of-time native compiler for Erlang. The quality of native code produced by HiPE can be so poor that it's often outperformed by the userland bytecode interpreter implemented in BEAM.

HiPE can perform a very limited set of optimizations. In particular, Erlang code is factored into modules, and HiPE's inliner is unable to inline natie code across modules. This is due to HiPE's lack of a deoptimizer (a.k.a. deopt), or a way to translate JITed code back into bytecode, which is necessary in general but particularly necessary in Erlang for cases like hot code swapping. Deopt support is a feature of many JIT compilers in languages more popular than Erlang, most notably the HotSpot compiler on the JVM. Google's V8 virtual machine for JavaScript added deoptimization support as part of their "Crankshaft" compilation infrastructure.

Erlang isn't general purpose

Erlang hates state. It especially hates shared state. The only facility provided by the language for dealing with shared state in Erlang is called "Erlang Term Storage" and provides a Judy array that several Erlang processes can talk to. The semantics of ETS are fairly awkward and using it directly is difficult. Erlang has a baked-in database called Mnesia which is built on ETS. Mnesia's performance characteristics aren't great but it provides a friendlier face for ETS. These are the only solutions to shared state baked into the language.

What should you do if you want to deal with a shared-state concurrency program in Erlang? The general advice is: don't. Erlang isn't designed for solving shared-state concurrency problems. If you encounter a shared state concurrency problem while developing your Erlang program, sorry, you picked the wrong language. Perhaps you should move along... and Clojure offers you some great ways to tackle shared state concurrency problems.

The syntax is atrocious

I think this one goes without saying. That said...

Let me come at this from a different angle than you're probably expecting: I've recently started working with Clojure, and I have to say, I really think Erlang would've been a lot better off with a Lisp-like syntax than a Prolog-inspired syntax. To-date Erlang is the only popular language with a Prolog inspired syntax and all of the awkward tokens and gramatical constructions make me wish it just had a simple Lispy syntax. This has been implemented in Robert Virding's Lisp Flavoured Erlang, which is very cool and worth checking out.

That opinion might come as a surprise, because the main project I was developing in Erlang was Reia, a Ruby-like syntax and runtime for Erlang. I've discontinued this project, for many reasons, one of which is because it's been surpassed in features and documentation by a similar project, José Valim's Elixir. After years of working on Reia, I've really grown to believe I'd rather spend my time working on a language which incorporates Erlang's ideas, but on the JVM with mutable state.

The Erlang cargo cult would love to hang me out to dry for even saying that... so let me address it right now.

Immutable state sucks and isn't necessary for Erlang-Style Concurrency

Immutable state languages force object creation whenever anything changes. This can be partially mitigated by persistent data structures, which are able to share bits and pieces of each other because they're immutable. This works, for example, when attempting to create a sublist that consists of the last N elements of a list. But what if you want the first N elements? You have to make a new list. What if you want elements M..N? You have to make a new list.

In mutable state languages, performance problems can often be mitigated by mutating local (i.e. non-shared) state instead of creating new objects. To give an example from the Ruby language, combining two strings with the + operator, which creates a new string from two old ones, is significantly slower than combining two strings with the concatenating >> operator, which modifies the original string. Mutating state rather than creating new objects means there's fewer objects for the garbage collector to clean up and helps keep your program in-cache on inner loops. If you've seen Cliff Click's crash course on modern hardware, you're probably familiar with the idea that latency from cache misses is quickly becoming the dominating factor in today's software performance. Too much object creation blows the cache.

Cliff Click also covered Actors, the underpinning of Erlang's concurrency model, in his Concurrency Revolution from a Hardware Perspective talk at JavaOne. One takeaway from this is that actors should provide a safe system for mutable state, because all mutable state is confined to actors which only communicate using messages. Actors should facilitate a shared-nothing system where concurrent state mutations are impossible because no two actors share state and rely on messages for all synchronization and state exchange.

The Kilim library for Java provides a fast zero-copy messaging system for Java which still enables mutable state. In Kilim, when one actor sends a message, it loses visibility of the object it sends, and it becomes the responsibility of the recipient. If both actors need a copy of the message, the sender can make a copy of an object before it's sent to the recipient. Again, Erlang doesn't provide zero-copy (except for binaries) so Kilim's worst case is actually Erlang's best case.

The limitations of concurrent objects in Reia were solved using mutable state in my Celluloid concurrent object library for Ruby, but that deserves a blog post in and of itself.

Single assignment is just as problematic as destructive assignment

Erlang doesn't allow destructive assignments of variables, instead variables can only be assigned once. Single assignment is often trotted out as a panacea for the woes of mistakenly rebinding a variable then using it later expecting you had the original value. However, let me show you a real-world case that has happened to me on several occasions which wouldn't be an error in a language with destructive assignment and pattern matching (e.g. Reia).

There exists a complimentary case of mistaken variable usage to the afforementioned problem with destructive assignment. In single-assignment programs, it involves mistakenly using the same variable name twice excepting the variable to be unbound the second time:

The first pattern matching expression binds the Foo variable to something. In the second case, we've mistakenly forgot Foo was already bound. What's the result?

exception error: no match of right hand side... 

We get no compiler warning in this case. This is the type of error you only encounter at runtime. It can lay undetected in your codebase, unless you're writing tests. Know what other problem writing tests solves? Mistaken destructive assignments.

Single assignment is often trotted out by the Erlang cargo cult as having something to do with Erlang's concurrency model. This couldn't be more mistaken. Reia compiled destructive assignments into Static Single Assignment (SSA) form. This form provides versioned variables in the same manner as most Erlang programmers end up doing manually. Furthermore, SSA is functional programming. While it may not jive with the general idealism of functional programming, the two forms (SSA and continuation passing style) have been formally proven identical.

The standard library is inconsistent, ugly, and riddled with legacy

Should module names in the standard library be plural, like "lists"? Or should they be singular, like "string"? Should we count from 1, as in most of the functions found in things like the lists module, or should we count from 0 like the functions found in the array module? How do I get the length of a list? Is it lists:length/1? No, it's erlang:length/1. How do I get the Nth element of the tuple? Should I look in the tuple module? Wait, there is no tuple module! Instead it's erlang:element/2. How about the length of a tuple? It's erlang:tuple_size/1. Why is the length of a list just "length" whereas the length of a tuple is "tuple_size"? Wouldn't "list_length" be more consistent, as it calls out it works on lists?

When we call erlang:now() to get the current time, it returns {1311,657039,366306}.  What the hell does that mean? It's a tuple with three elements. How could time possible need three elements? A quick look at the documentation reveals that this tuple takes the form {Megaseconds, Seconds, Microseconds}. Separating out Microseconds makes sense... Erlang has no native decimal type so using a float would lose precision. But why split apart Megaseconds and Seconds?

Once upon a time Erlang didn't support integers large enough to store the combination of Megaseconds and Seconds, so they were split apart. The result is a meaningless jumble of three numbers, which you have to run through the confusingly named calendar:now_to_local_time/1 function to get a human meaningful result, which doesn't tell you what time it is now, but instead takes the tuple that erlang:now/0 returns as an argument and will spit back meaningful {Year, Month, Day} and {Hour, Minute, Second} tuples.

Legacy in the grammar

Try to use "query" as an atom in Erlang, e.g. {query, "SELECT * FROM foobar"}. What happens?

syntax error before: ','

This is because 'query' is a reserved word which was reserved for Mnemosyne queries. Never heard of Mnemosyne? That's because it's an archaic way of querying Erlang's built-in database, Mnesia, and has been replaced with Query List Comprehensions (QLC). However, it remains around for backwards compatibility.

You can't use "query" as a function name. You can't tag a tuple with "query". You can't do anything with "query" except invoke a deprecated legacy API which no one uses anymore.

Strings-as-lists suck

Erlang provides two ways of representing strings. One is as lists of integers, which is the traditional way that most of the library functions support. Another is binaries. Erlang has no way of differentiating lists of integers that represent strings from lists of integers that are actually lists of integers. If you send a list of integers in a message to another process, the entire list of integers is copied every time. On 64-bit platforms, every integer takes up 64-bits.

The obvious solution here is to use binaries instead of lists of integers. Binaries are more compact and exist in a separate heap so they aren't copied each time they're sent in a message. The Erlang ecosystem seems to be gradually transitioning towards using binaries rather than strings. However, much of the tooling and string functions are designed to work with list-based strings. To leverage these functions, you have to convert a binary to a list before working with it. This just feels like unnecessary pain.

The abstract concept of lists as strings isn't inherently flawed. In many ways it does make sense to think of strings as lists of characters. Lists as strings would probably make a lot more sense if Erlang had a native character type distinct from integers which was more compact and could avoid being copied each time a string is sent in a message like a binary. Perhaps in such a system it'd be possible to avoid transcoding strings read off the wire or completely transforming them to a different representation, which is costly, inefficient, and often times unnecessary (yes, this is a problem with Java too).

There's no "let"

Want a local binding in Erlang? Perhaps you've used let for this in a Lisp. What happens when you try to do this in Erlang? Even attempting to use "let" in Erlang just yields: syntax error before: 'let'

Once upon a time Erlang was supposed to get let bindings, and the "let" keyword was set aside for this purpose. But much like frames, it never happened. Instead, let is now an unimplemented reserved word which just breaks your programs.

There's no "nil"

In Clojure, I can write the following: (if false :youll-never-know).  This implicitly returns "nil" because the condition was false. What's the equivalent Erlang?

Erlang forces you to specify a clause that always matches regardless of whether you care about the result or not. If no clause matches, you get the amazingly fun "badmatch" exception. In cases where you don't care about the result, you're still forced to add a nonsense clause which returns a void value just to prevent the runtime from raising an exception.

Where do I go from here?

Again, I want to emphasize that I have a great deal of respect for Erlang conceptually. But at this point I'd like to take what I've learned and go elsewhere with it. One direction I've gone is the Celluloid concurrent object library for Ruby. You can read more about it in the original blog post I wrote about Celluloid, which is a bit out-of-date at this point. I have a forthcoming blog post which should dive a bit deeper into Celluloid's guts and how it can do things which aren't possible in Erlang.

As you've probably guess from the references sprinkled throughout this post, I'm learning Clojure. I'm a fan of the JVM and Clojure provides a great functional language for leveraging the JVM's features. I think the sort of things that I'd be writing in Erlang I'll try writing in Clojure instead. Clojure has elegant Lisp syntax. Clojure has maps. Clojure has powerful facilities for dealing with concurrent shared state problems. Clojure has great semantics for safely managing mutable state in a concurrent environment. Clojure has real strings. Clojure has let. Clojure has nil. Clojure runs on the JVM and can leverage the considerable facilities of the HotSpot JIT and JVM garbage collectors.

I'd also like to try my hand at creating a JVM language, especially with the impeding release of Java 7 this Thursday. Java 7 brings with it InvokeDynamic, a fast way to dispatch methods in dynamic languages, and considerably eases the difficulty of implementing dynamic languages on the JVM. Stay tuned for more details on this.

1,045 comments:

1 – 200 of 1045   Newer›   Newest»
vdp said...

Erricson's community-management probably isn't flawless, but I think they do a good job at integrating contributions from the community, especially since they moved to git.

I guess that, while records suck in some respects, they're good enough and nobody has cared enough to put forward a full replacement (using frames or whatever).


I mostly agree with your other comments, although to me they're not enough to give up on erlang's good points. Many of you complaints stem from the fact that erlang is both old and stable, which is a blessing and a curse. And like any tool, erlang is not good at everything.

MononcQc said...

To complete:

if crashing when you don't match a value makes perfect sense considering it's an expression, which means it always returns something.

1> E = if 1 > 0 -> car; 1 =< 0 -> dog end, E.
car

Not returning something would completely mess up the idea behind using expressions for everything.

Tony said...

Clojure is a purely expression-based grammar as well (it's a Lisp, after all). However if you don't provide an "else" clause to an if expression, Clojure implicitly returns nil.

Erlang could do the same... they just chose not to.

MononcQc said...

(any idea where my other comment went, Tony?)

This is something that Erlang could possibly do in cond as Robert Virding suggested it, or even in cases. For ifs, the semantics of guards are kept, and non-matching guards never do anything. It would be weird to create an exception just for this.

Moreover, I do enjoy the ability to raise an error when nothing matches. Is there any way to keep this behaviour when you need it? If it doesn't, I'm not sure I'd be ready to do the switch. For the time being, I prefer to do 'SomeCond andalso Consequence' rather than adding empty clauses to manually raise an error in all cases/ifs. Personal preference though.

MononcQc said...

Well, because my two attempts at posting my main comment failed, here it is: https://gist.github.com/f99035df1bc1d5f8a218/764b3a6c57e4048e3a3966d0b973e8628388e75b

Nahuel said...

Tony: Besides the VM performance, syntax and legacy details, what do you think about the Concurrency model of Clojure vs. the one in Erlang? I think Clojure syntax is cleary better than Erlang, but I'm not so sure on the Concurrency model. Linked actors seems to map the reality better (reality is concurrent, and each part/actor doesn't have the whole vision).


Do you have experience in large systems in Erlang vs Clojure ones? And in hot-code-swapping in Clojure vs Erl?

frk said...

Pardon my very direct interpretation of what happened:

So you were recently kinda trolled by R.O'Keefe on the Erlang list and now the bitterness... Quite an emotional response, don't you think?

Tony said...

Nahuel: I think Clojure and Erlang's concurrency models target different problems, but Clojure's is more general purpose. What Erlang provides can be added at the library level. The only large system I've built in Erlang is Reia. I haven't build a large system in Clojure yet.

frk: this post has been a long time coming. That was just the straw that broke the camel's back.

Alex Cruise said...

So, I know you said you didn't like Scala a couple years ago, but we're having some fun over here. :)

Since you left, Akka was released, bringing a lot of asynchronous, high-scale, actor-based goodness, and Scala 2.8+ has made working with collections an absolute joy.

Unknown said...

> Even more exciting is that AMD's Fusion architecture, which they're implementing in conjunction with ARM, provides read and write barriers at the hardware level necessary to provide a system like Azul using commodity hardware.

Can you elaborate? The article you are linking to says nothing about this capabilities of Fusion arch.

Paul Brannan said...

Where I come from, 10-20ms is an eternity. It's hardly pauseless. Build a GC that runs in under 1μs and I'll consider it pauseless.

BTW, interesting to see the evolution of your position over the years. I'll miss Reia, but I'm interested to see what you invent next.

Chris Moschini said...

You might consider moving on to .NET. It's recently implemented (.NET 4.0) many of Erlang's best concepts regarding concurrency and parallelism, while avoiding its (many) worst. It's also highly performant, and can be run on non-Microsoft architectures.

Here for example are the docs on the Task Parallel Library, that make concurrency almost stupidly simple to implement.

http://msdn.microsoft.com/en-us/library/dd460717.aspx

You might also take a look at the yield statement, and this broader topic on Parallel Programming in .NET:
http://msdn.microsoft.com/en-us/library/dd460693.aspx

Rich Claxton said...

"The semantics of ETS are fairly awkward and using it directly is difficult."

Really?
ets:insert
ets:lookup
ets:delete

Awkward and difficult?

Askatasuna said...

Hi :) I think he meant that the meaning of those functions changes depending on the type and options of the ETS table.

I will go so fa as to agree that you have to be pretty sure what you are doing when you initialize an ETS table in a certain manner.

jsgf said...

Your single-assignment complaint is more a side-effect of Erlang's binding-as-pattern-matching rather than anything that's inherent. Other languages will either complain at compile time or open a new binding with a new scope.

Daniel said...

Your understanding of persistent data structures is naive. While singly linked lists are persistent on operations that preserve tails, there are other data structures that are persistent on the operations you mentioned -- such as the ones used by Clojure and Scala.


And the comment about String is also interesting, because if they were implemented as ropes, you'd not only have a persistent data structure, but actually gain performance for some operations (and lose for others).

NouveauManceau said...

I have no qualms with the syntax whatsoever, but I guess I was brought up on prolog quite early.
Strings as lists arent always optimal, I agree.

dda said...

Arguing about strings with the old Erlangers is akin to stabbing oneself in the eye with a butter knife. I have re-implented a string object based on binaries, complete with encoding-aware string functions. The response on the list was basically "Why would we need that? A list of integers is fine!" Luddites, really...

MononcQc said...

dda, can your functions handle string lengths in the presence of unicode control characters? I'm having problems with that right at the moment and would be interested in seeing if your code can help.

dda said...

I haven't tried the strLength as thoroughly as the rest – I was kind of disappointed by the lack of enthusiasm and the abundance of backlash – but a quick test just now with a UTF-8 string containing 5 Chinese characters and a tab returns the correct length: 6.

> mb:test(strLength).
strLength("廣東話 好好") = 6.

So if you have test cases, I can try them on, and see how it works.

mightybyte said...

I'd suggest taking a look at Haskell. Even if you end up hating it, it will be a mind expanding experience that will have been worth your time.

Unknown said...

You said:
"Erlang is not general purpose"

Of course. I don't see value in another general purpose language.

Also, I can't understand why do you need state so desperately.

In fact you have process dictionary if you need state so badly.

But why?

Unknown said...

Speaking of "general purpose" languages, well, I don't think those words mean what you think they mean.

A general purpose language is one which is usable for more than a specific application domain; i.e. not TeX. Perhaps you're looking for "multi-paradigm" or something.

Partdavid said...

"The syntax is atrocious

I think this one goes without saying. That said..."


I think if you're going to make an assertion like this you need to provide something to support it.

"Erlang isn't designed for solving shared-state concurrency problems. If you encounter a shared state concurrency problem while developing your Erlang program, sorry, you picked the wrong language."

Can you give an example of a "shared-state concurrency problem"?

Thirdly, you don't address what I would consider key features of Erlang: distribution, error recovery, OTP application management.

Raoul Duke said...

yo. thanks for your post. i'm a long-time erlang fan-boy who very much appreciates doses of reality like this. food for thought, we all need to be looking out for the 'boat anchors in stockholm syndrome' we have become cozy with.

now. the problem is that erlang really does have the nine-nine mojo. i could try to go do things like it in akka or clojure, but i'd probably hit some weird bugs, no? that's the trade-off, no? a nice new fancy language with some sane syntax + the chance of hateful bugs (scala just blows my mind with the bug lists) VS. really crappy apis that i will never understand but once i do, if i do muddle though, will be super rock solid? even if slow?

Blogbuster said...

Great post Tony!

What do you think of Google Go as a language in programming concurrency? Do you think it will get more popular for its Goroutine?

Paul said...

Re Erlang syntax - atrocious: passing personal preference as proof seems to be a growing trend these days.

In my view, Lisp's syntax is atrocious and mind corrosive, while Erlang's is pure poetry.

Who is right?

Unknown said...

What's the prolem?
Use the lang which fills your needs.
In one project I used Erlang to handle mio's of network events from the internet. But after collection and enrichment I propagated them to a python process to do the data wrangling.

In terms of concurrency Erlang is unbeaten. Clojure, actors, etc. running on a JVM do not scale.
Why? Simple. The OS decides when a contect switch is done.
As Erlang is interpreted the processes run much more concurrently.
There is one rule in JVM concurrency: don't do thread blocking!
In Erlang it is impossible.

But, you are right the language is ugly, somtimes verbose and old.
Old and stable - simple.

Don't forget failure-tolerance. Erlang shines here.
And they can proof it in production.

Today I'm going with Akka. But it as also weaknesses.
As with every programming language on this dumb planet, sorry for that.

Jon Harrop said...

Interesting article but I do disagree with a couple of points.

"If you're looking for a language that gets multicore concurrency right, look at how Azul implemented Java on their Vega architecture"

As you said, "latency from cache misses is quickly becoming the dominating factor in today's software performance" but the lack of value types on the JVM is a fundamental design flaw that undermines that cache miss rate. The JVM is incapable of storing an array of pairs of values of different types contiguously in memory and the incidental indirections that it introduces (i.e. boxing) destroy locality and, consequently, destroy scalability on multicores. I once calculated that Cliff Click's concurrent hash table on 100 Azul cores was running at the same speed as a serial .NET hash table on one Intel code.

So Azul have done a fantastic job of multicore Java and JVM but not multicore in general because the JVM imposes such crippling limitations in this context.

"Too much object creation blows the cache."

Only if your objects survive. Provided they die in the nursery generation, object creation is cheap and stays in-cache. If they survive, it is much more expensive and can go out-of-cache.

Historically, functional programming languages have been used a lot for metaprogramming where you tend to have lots of trees and lots of small collections (e.g. maps containing a few variable bindings) and not the large collections you see in more general programming. Purely functional data structures worked well there because the nursery generation would collect most of the garbage generated by unreachable old versions of collections. With larger collections you hit that survival problem and performance can be really bad. However, purely functional data structures are still easier for a garbage collection to traverse incrementally so they should make it easier to obtain lower pause times.

Unknown said...

Elixir-lang has solved 85 percent of your valid concerns above.

Sergio 鬼才 said...

Funny thing you don't mention at all the sheer goal of Erlang, fault-tolerance, which is the main reason for the share-nothing heap. If the HTM or STM gets currupted, your 768 process will work wrong or fall like dominoes. Erlang prioritizes fault tolerance over everything else, even performance. There is a talk from one of the engineers from Azul, who saids the HTM is not a dreamland, it brings probabilistic to the update in memory, your program might believe they perform a change when the actually haven't or it changed to what other process did, and the other process believes it fails when actually succeeded. This is what Erlang/OTP & the BEAM avoids. They want to isolate the impact of disturbances, read about.

The collection of garbage can be done quickly by killing a process.

It is sad to see people who can't understad something unfamiliar to their fixated ways, they call it a ghetto.

IT said...

I have read your blog its very attractive and impressive. I like it your blog.

Java Training in Chennai Core Java Training in Chennai Core Java Training in Chennai

Java Online Training Java Online Training Core Java 8 Training in Chennai java 8 online training JavaEE Training in Chennai Java EE Training in Chennai

IT said...

Online JSF Training JSF Training Institutes in Chennai Java Training Institutes Java Training Institutes Struts2 Training Institutes in Chennai Struts2 Training Institutes in Chennai

EJB Training Institutes in Chennai EJB Training Institutes in Chennai Java EE Training Institutes in Chennai Java EE Training Institutes in Chennai Java Training in CHennai |

IT said...

Wow. This really made my day. Thanks a lot!

Javascript Training in Chennai | HTML5 Online Training
JavaScript Training Courses | Javascript Online Training | Angular 2 Training in Chennai

IT said...

JavaScript Training in CHennai

JavaScript Training in CHennai JavaScript Training in CHennai JQuery Online Training JQuery Online Training

IT said...

HTML5 Training in Chennai HTML5 Training in Chennai JQuery Training in Chennai JQuery Training in Chennai JavaScript Training in Chennai JavaScript Training in Chennai Full Stack Developer Training in Chennai Full Stack Developer Training in Chennai


AngularJS Training in Chennai AngularJS Training in Chennai Node.js Training in CHennai Angular 2 Training in Chennai Angular 2 Training in Chennai Node.js Training in CHennai Node.js Training in chennai MEAN Developer Training in Chennai

Hamsite said...

شرکت هم سايت ارائه دهنده خدمات طراحي سايت و خدمات بهينه سازي و سئو و خدمات بازاريابي و تبليغات اينترنتي است.
شما مي توانيد طراحي سايت براي مشاوره طراحي سايت و مشاوره بهينه سازي و سئو سايت و مشاوره بازاريابي اينترنتي مشورت کنيد و با بازديد از مقاله هم سايت و شناختن از واژه ياب همسايت و از مقالات هم سايت بيستر آشنا بشويد.
واژه ياب هم سايت و گروه و تيم همسايت با داشتن گنجينه هم سايت ارائه دهنده سفارشي ها هم سايت و بهينه سازي و سئو و

Hamsite said...

بازاريابي و تبليغات اينترنتي است.
درباره هم سايت را در دفتر تماس با همسايت هم سايت با خدمات تبليغات و خدمات طراحي و خدمات سئو را با قيمت طراحي سايت و قيمت بهينه سازي و سئو سايت و قيمت بازاريابي و تبليغات سايت ببينيد.
آيا طراحي وب سايت را مي شناسيد.
براي شناخت از بازاريابي بايد از شرکت طراحي سايت آشنا بشويد
طراحي وب
بهينه سازي و سئو سايت
بازاريابي و تبليغات اينترنتي هم سايت

Hamsite said...

سئو حرفه اي بهترين را براي مشاوره سئو
يا سئو و بهينه سازي سايتيا بازاريابي و تبليغات اينترنتي و آنلاين به شما مي دهد.
بهينه سازي سايت و يا تبليغات و يا افزايش بازديد سايت را با سئو سايت را ببينيد.و مقالات ديجيتال مارکتينگ و

Hamsite said...

براي اين کار يا يا که طراحي سايت در تهران و بهينه سازي وب سايت مي توان بهينه سازي و مشاوره بهينه سازي و سئو را تا مشاوره بازاريابي آنلاين و سئو براي دو افزايش رنک گوگل و افزايش بازديد و همچنين شبکه تبليغاتي را دارا مي باشد و در افزايش پيج رنک گوگل دارد شرکت تبليغاتي و کانون تبليغاتي و معرفي سايت به گوگل و طراحي سايت تخصصي و طراحي وب سايت تخصصي است و در ادامه مي توان گفت واژه ياب همچنان واژه ياب فارسي و واژه هاي تخصصي و واژه تخصصي پزشکي و واژه تخصصي مهندسي هستند و همه چي درباره بازاريابي اینترنتی و همه چي درباره بازاريابي آنلاين و درباره بازاريابي اينترنتي و درباره بازاريابي آنلاين مي باشند که بهينه سازي و سئو و آموزش بهينه سازي و سئو و آموزش سئو و مقالات بهينه سازي و سئو و مقالات سئو و سئو چيست و آموزش کامل سئو و آموزش کامل بهينه سازي و سئو که هستند و بازاريابي ايميلي و ايميل مارکتينگ و آموزش بازاريابي ايميلي و آموزش ايميل مارکتينگ و مقالات بازاريابي ايميلي و مقالات ايميل مارکتينگ مي باشند و بازاريابي اينترنتي و آموزش بازاريابي اينترنتي و آموزش بازاريابي آنلاين و مقالات بازاريابي اينترنتي و مقالات بازاريابي آنلاين و بازاريابي آنلاين هستند اما

Hamsite said...

با همراه کارشناسان طراحي سايت و بهينه سازي و بازاريابي که همچنان و بازاريابي و تبليغات اينترنتي است.و را در را با مي توان همچنين طراحي سايت حرفه اي و طراحي وب سايت حرفه اي مي توان از طراحي سايت شرکتي و طراحي وب سايت شرکتي در ادامه اين طراحي سايت تجاري و طراحي وب سايت تجاري و يکي از همين طراحي سايت اختصاصي و ديجيتال مارکتينگ چيست و بازاريابي الکترونيک و تجارت الکترونيک و آموزش تجارت الکترونيکمي باشد.و طراحي سايت صنعتي و طراحي وب سايت صنعتي که بهترين طراحي رو براي طراحي سايت املاک و طراحي وب سايت املاک که مي توان طراحي سايت رستورانديجيتال مارکتينگ و آموزش ديجيتال مارکتينگ و بازاریابی اینترنتی و بازاریابی آنلاین

Hamsite said...

و.همچنان با و کسب و کار اینترنتی و کسب و کار آنلاین . اما طراحي وب سايت اختصاصي مي توان با طراحي سايت سازماني ، طراحي پرتال سازماني که اين همان طراحي سايت کارخانه و طراحي سايت کافي شاپ که اين يک طراحي سايت معماري و طراحي سايت دکوراسيون داخلي است.طراحي سايت خبري و طراحي وب سايت خبري و ديگر طراحي سايت خودرو و همچينين طراحي سايت دانشگاه و طراحي وب سايت دانشگاه همچنان

Hamsite said...

طراحي سايت پزشکي و طراحي وب سايت پزشکي و طراحي سايت بيمارستان در ادامه مي توان نشان داد که طراحي سايت دندانپزشکي ، طراحي سايت هتل و طراحي وب سايت هتل همواره سايت هايي چون طراحي سايت آژانس مسافرتي و طراحي وب سايت آژانس مسافرتي و طراحي سايت آژانس هواپيمايي مي توان يکي از طراحي فروشگاه اينترنتي ، طراحي سايت فروشگاه اينترنتي ، طراحي وب سايت فروشگاه اينترنتي ، طراحي سايت فروشگاه ، طراحي وب سايت فروشگاه ، طراحي وب سايت فروشگاهي و در يکي از

Unknown said...


your article is more useful and informative.. thanks to share this... keep rocking..


Dot Net Training in chennai

rabbit gravy said...

Download Spell Chaser
Download Spell Chaser
Download Spell Chaser
Free Download Spell Chaser
Download Spell Chaser
Download Spell Chaser
Download Spell Chaser
Free Download Spell Chaser
Download Spell Chaser
Download Spell Chaser
Download Spell Chaser
Free Download Spell Chaser
Download Spell Chaser For Android
Download Spell Chaser For APK
Spell Chaser Download
Spell Chaser Free Download
Spell Chaser Free Download
Spell Chaser Download APK
Download Spell Chaser For Android
Download Spell Chaser For APK
Spell Chaser Download
Spell Chaser Free Download
Spell Chaser Free Download
Spell Chaser Download APK
Spell Chaser Free Download
Spell Chaser Free Download
Spell Chaser Download APK



Unknown said...

security surveillance service

cctv surveillance system in delhi

shina said...


Pestveda | Pest Control
Termite control

Fuzzy International said...

I am delighted to see this post.Thank you for Sharing!
cashew nuts importer in Dubai
A4 paper importer in Dubai

emma said...

cctv camera dealers in delhi
cp plus cctv camera online
hikvision camera online
cctv camera installation services in delhi
cctv camera installation services in gurugram
cctv camera installation services in gurgaon

Unknown said...

a pride for me to be able to discuss on a quality website because I just learned to make an article on
cara menggugurkan kandungan

annastewart said...

Avriq
Avriq Partner
Avriq Contact Us

puria said...

باربری

اتوبار تهران

اتوبار

باربري

اسباب کشی

حمل بار به شهرستانها

باربری تهران به شهرستان

باربری شهرستان

OnlineTutorials said...

wow this was really funny article. thanks for sharing this because it really helps and it's alot through than i had expected so thanks aton! mate.
turbo racing 3d mod apk
rail rush 1.9.0 mod apk (unlimited gold/everything unlocked)
matchington mansion mod apk latest version
The Sims FreePlay V5.33.4 Mega Apk Mod (Unlimited Money) Latest Mod Download
Dungeon Quest V3.0.3.1 Apk Mod (Free Shopping) Latest Version Download For Android

Unknown said...

يمكنكم الان من خلال نقل عفش مكة نقل جميع قطع الاثاث بامان تام كما اننا نحرص على توفير جميع وسائل المواصلات الحديثة المتنوعة من خلال نقل عفش مكة باسعار مميزة ومتاحة للجميع
للاستعلام
http://www.xn-----jtd6bya2cendpd.com

3nod maka said...

يمكنك الان من خلال شركة تنظيف الخزانات بمكة الحصول على مياه نظيفة وصالحة للاستخدام كما نوفر لك مكافحة حشرات بمكةللتخلص من كافة انواع الحشرات المزعجة بوسائل امنةوفعالة
للتواصل

http://www.el3nod.com/1/company-tanks-isolation-cleaning-mecca

http://www.el3nod.com/5/company-anti-insect-termite-Pesticides-mecca

شركة فارس الخليج said...


شركة تنظيف بمحايل عسير
شركة مكافحة حشرات بمحايل عسير
شركة تنظيف منازل بمحايل عسير
شركة نقل عفش بحائل
شركة تنظيف بحائل
شركة تنظيف خزانات بحائل
شركة تنظيف بالباحة
شركة تنظيف منازل بالباحة
شركة مكافحة حشرات بالباحة

شركة فارس الخليج said...

شركة كشف تسربات المياه بسيهات وعنك
شركة تسليك مجارى بسيهات وعنك
شركة مكافحة النمل الابيض بسيهات
شركة مكافحة حشرات بسيهات وعنك
شركة تنظيف موكيت ومجالس بسيهات
شركة تنظيف خزانات بسيهات وعنك

Unknown said...

I am pleased with your good work. Praising time and efforts you put into your blog section.
please keep blogging with us and keep adding. Cupshe Coupon codes If you are looking for best deals and offers so here you will get more best offers at an affordable price.

شركات خدمات منزلية said...

شركة الصفرات لتسليك المجاري
شركة الصفرات لتنظيف الخزانات

Konsep Kesehatan Islami said...

Love all the tips Thank you for sharing them! I hope you will continue to have similar posts to share with everyone thanks for this article you have to be shared at this time.
Obat gondok beracun paling ampuh

Deep Learning said...

I read this article. I think You put a lot of effort to create this article. I appreciate your work.
Dissertation Writing Services

shabnam praveen said...

Call girls in Kolkata
Call girls in Chandigarh
Call girls in Chandigarh
Call girls in Gurgaon
Call girls in Chandigarh
Call girls in Chandigarh

MANOOOL said...

شركة نقل اثاث بمكة

نقل أثاث داخل مكة المكرمة

أرخص شركة نقل عفش بمكه
شركة نقل عفش مكة رخيص

أفضل شركة نقل عفش بمكة

شركة نقل عفش فى مكة

MANOOOL said...
This comment has been removed by the author.
MANOOOL said...
This comment has been removed by the author.
devkana said...

google chrome 2019 for linux
Chrome Browser 2019 Full Standalone
Google Chrome 2019 APK Download for Android
Google Chrome 2019 for Windows 64 bit
Google Chrome 2019 Full Offline Installers
Chrome 2019 Download Latest Version Update

ngocnhung said...

Thanks for sharing, nice post! Post really provice useful information!

Giaonhan247 là đơn vị công ty gửi hàng đi mỹ uy tín với giải đáp thắc mắc về alibaba là gì, alipay là gì, rakuten là gì hay mua hàng trên amazon có ship về việt nam không cũng như mua hàng trên amazon có đảm bảo không uy tín không.

Unknown said...

selamat Obat Jari Kaku Dan Sakit sore Obat Telinga Berair Bau & Gatal semua Asia Herbal bagaimana Walatra Jelly Gamat kabarnya Obat Mata Minus Di Apotik sehatkah?

Unknown said...
This comment has been removed by the author.
Unknown said...
This comment has been removed by the author.
Unknown said...
This comment has been removed by the author.
Unknown said...
This comment has been removed by the author.
Unknown said...
This comment has been removed by the author.
Unknown said...
This comment has been removed by the author.
Unknown said...
This comment has been removed by the author.
Unknown said...
This comment has been removed by the author.
Unknown said...
This comment has been removed by the author.
Unknown said...
This comment has been removed by the author.
Unknown said...
This comment has been removed by the author.
Unknown said...
This comment has been removed by the author.
Unknown said...
This comment has been removed by the author.
Unknown said...
This comment has been removed by the author.
Unknown said...
This comment has been removed by the author.
Unknown said...
This comment has been removed by the author.
fortnite said...

howdy, your websites are really good. I appreciate your work. https://yolongbrewtech.com/products/

fortnite said...

Good website! I truly love how it is easy on my eyes it is. I am wondering how I might be notified whenever a new post has been made. I have subscribed to your RSS which may do the trick? Have a great day! How to register a company

Kanhasoft said...

Thanks for sharing this post. Kanhasoft is top notch software company offering offshore DotNet development services in India. We are expert in creating robust and reliable Dot net web application at the affordable price. Visit our site to know more about us.

Unknown said...

شركة مكافحة حشرات بجدة
شركة تركيب طارد حمام بجدة
شركة مكافحة البق بجدة
شركة مكافحة الصراصير بجدة
شركة مكافحة النمل الابيض بجدة
شركة مكافحة الفئران جدة
شركة رش مبيدات بجدة
شركة رش حشرات بجدة
شركة مكافحة حشرات بجدة

Unknown said...

[CENTER][SIZE=5]
افضل شركات خدمات منزلية بجدة

إلى كل من يحتاج إلى فريق عمال متميز في أعمال الصيانة المنزلية بجدة، إليكم شركتنا التي تعمل على أن تقدم إليكم الكثير من تلك الأعمال والتي تتم على أيدي أكف عمال ومهندسين وفنين في أعمال السباكة والكهرباء وتمديد الغاز المركزي بجدة، فشركتنا توفر إليكم كل هذه الخدمات بأرخص الأسعار التي تتناسب مع جميع سكان جدة والمناطق المجاورة لها.
[URL="https://tasmimm.com/plumber-in-jeddah/"]معلم سباك بجدة[/URL]
تتعرض المنازل والبيوت لكثير من المشكلات بالأدوات الصحية ومواسير المياه وغيرها، ومن أخطر المشكلات الذي يتعرض إليها معظم سكان جدة مشكلة تسربات المياه التي تحتاج إلى معلم سباك بجدة والذي يمتلك أحدث المعدات والأجهزة التي تساعده في اكتشاف تسربات المياه وحلها بسهوله.
[URL="http://tasmimm.com/electrician-jeddah/"]فني ومعلم كهربائي بجدة[/URL]
فني كهربائي بجدة من أهم العمال التي تعتمد عليه شركتنا للقيام بكثير من الأعمال المتعلقة بالكهرباء، فهو يتعامل مع الكهرباء بطريقة مميزة لا يعلمها غيره، كما يمكنه فك وتركيب النجف وتصليح وتركيب الأجهزة الكهربائية الحديثة والقديمة، أيضاً يعمل على تشطيبات الشقق والفلل والشركات والمكاتب، فهو يتميز بالخبرة الطويلة في هذا النوع من الأعمال التي تحتاج إلى معلم كهربائي بجدة ذو خبرة عالية.
[/SIZE][IMG]http://ahbabelmadina.com/wp-content/uploads/2016/01/كهربائي-بالمدينة-أحباب-طيبة.jpg[/IMG][SIZE=5]
[URL="https://tasmimm.com/شركة-تمديدات-الغاز-المركزي-بجدة/"]شركة تمديد الغاز المركزي بجدة[/URL]
تمديد الغاز المركزي بجدة من أهم الأشياء الذي يحتاج إليها سكان جدة والمدينة وجدة وهو من أحدث الوسائل المستخدمة لإشغال الغز بالمنازل والبيوت، ولكنها تحتاج إلى أفراد متخصصين في تمديد الخبرة، ولذا تحرص الشركة على أن يكون لديها مهندسين وفنيين متخصصين في تمديد الغاز المركزي بجدة بطريقة أمنة.
[URL="https://ahbabelmadina.com/coordinator-of-gardens-in-jeddah/"]شركة تنسيق حدائق بجدة[/URL]
جميعنا يرغب في أن يمتلك حديقة جميلة ومميزة ولكن يكون من الصعب عليه القيام بتنسيق وتنظيف الحدائق بنفسه، لذا يفضل الاستعانة بشركتنا شركة تنسيق حدائق بجدة لأنها من أفضل الشركات التي توفر فريق من عمال الزراعة والذي يكون لديهم الخبرة في أنواع النباتات والأشجار الطبيعية والصناعية.
[URL="https://ahbabelmadina.com/tile-technician-in-jeddah/"]معلم بلاط بجدة[/URL]
إذا كنت ترغب في الحصول على تركيب بلاط بشكل أنيق وشيك فيجب أن تتواصل مع شركتنا للحصول على أفضل معلم بلاط بجدة وهو الذي يمتلك الخبرة في تركيب البلاط بكافة أنواعه وأشكاله الحديثة والعصرية.
[URL="https://ahbabelmadina.com/installation-of-ikea-furniture-in-jeddah/"]تركيب اثاث ايكيا بجدة[/URL]
عزيزي العميل توفر إليكم شركتنا فريق متخصص من عمال النجارة لفك وتركيب أثاث ايكيا بجدة والتي يعد من أحدث أنواع الأثاث الذي يحتاج إلى عمال محترفين ولديهم الخبرة وهذا ما يتوفر داخل شركتنا.[/SIZE][/CENTER]

call Girl said...

Call girls in Gurgaon
Call girls in Lucknow
Call girls in Guwahati

Call girl in Gurgaon
Call girl in Lucknow
Call girl in Guwahati
Bangalore call girls


Gurgaon call girls
Lucknow call girls
Guwahati call girls
Bangalore call girls


Gurgaon call girl
Lucknow call girl
Guwahati call girl
Bangalore call girl

Escorts in Gurgaon
Escorts in Lucknow
Escorts in Guwahati
Escorts in Bangalore


Escort services in Gurgaon
Escort services in Lucknow
Escort services in Guwahati
Escort services in Bangalore


Escort service in Gurgaon
Escort service in Lucknow
Escort service in Guwahati
Escort service in Bangalore


Gurgaon escorts
Lucknow escorts
Guwahati escorts
Bangalore escorts

Naincy said...

This is so much amazing .so,you can also visite my links.
call girls in kolkata
russian escorts in kolkata
kolkata call girls
call girls kolkata
escorts in kolkata
kolkata escort
housewife escorts in kolkata
college call girls in kolkata
call girls in park street
escorts in park street

call girls in gurgaon
call girl in gurgaon
gurgaon call girls
escorts in gurgaon
gurgaon escorts
gurgaon escort
Escort services in Gurgaon
Escort service in Gurgaon
russian escorts in gurgaon
housewife escorts in gurgaon
college call girls in gurgaon

Call girls in Noida
Call girl in Noida
Escorts in Noida
Escort services in Noida
Escort service in Noida
Noida Escorts
Noida Escort
Noida Call girls
Noida Call girl

maktabtk said...

يتواجد لدي موقع مكتبتك الكثير من الانواع المختلفة للتقنيات العالية في الجودة منها توفير خدمة الاطار النظري للبحث العلمي في مختلف المجالات العلمية

GULO said...

useful information on topics that plenty are interested on for this wonderful post.Admiring the time and effort you put into your b!.. grammarly premium free trial

Unknown said...

nice blog !!. i found this blog, this is really nice and interested to read. thanks to author for sharing this type of information.
PhD Topic selection help
PhD Thesis writing services
complete PhD Research Methodology Chapter Writing Services
PhD topic selection help
"Research Methodology For Phd"
dissertation literature review writing services
PhD Assignment Help Service

Amany Said said...

هل تبحث عن شركة متخصصة فى خدمات التنظيف بالطائف بافضل المعدات والسوائل وثقة تمة فى العمل ودقة فى النتائج كل هذه المميزت توفرها شركة الخليج الشركة الافضل والامثل فى الخدمات المنزلية بالطائف وبما اننا الشركة الافضل والامثل بدون منافس سوف نسعى لتوفر افضل الخدمات باقل تكلفة وبقدر كبير من الاهتمام والدقة عزيزى اينما كنت فى اى منطقة ا وحى تابع لمدينة الطائف اتصل بنا وسوف نصلك فى الحال شركة الخليج للخدمات المنزلية شركة تنظيف منازل بالطائف
شركة تنظيف فلل بالطائف
شركة تنظيف خزانات بالطائف
شركة تسليك مجارى بالطائف
شركة رش مبيدات بالطائف
شركة مكافحة نمل ابيض بالطائف
شركة مكافحة حشرات بالطائف
شركة عزل اسطح بالطائف
شركة عزل خزانات بالطائف

Amany Said said...

تعمل شركة اللمسه في مكافحة الحشرات مثل النمل والصراصير وجميع انواع الحشرات بأبها الان ، وتعتبر شركة اللمسه من اشهر شركات مكافحة الحشرات في السعودية , لدينا عمالة مدربة ومتخصصة المواد المستخدمة فى مكافحة الحشرات غير ضارة على الانسان وليس لها روائح نعمل بدون مغادرة المنزل نعمل على راحة عملائنا .
شركة مكافحة النمل الابيض بنجران
شركة رش مبيدات بالخرج
شركة مكافحة حشرات بالخرج
شركة مكافحة النمل الابيض بالخرج
شركة رش مبيدات بأبها
شركة مكافحة حشرات بأبها
شركة مكافحة النمل الابيض بأبها
شركة رش مبيدات بنجران
شركة مكافحة حشرات بنجران
شركة رش مبيدات بالعينه

MANOOOL said...
This comment has been removed by the author.
MANOOOL said...
This comment has been removed by the author.
MANOOOL said...
This comment has been removed by the author.
MANOOOL said...
This comment has been removed by the author.
Unknown said...

ما هي خدمة صيانة وايت ويل
؟!
يقدم مركز صيانة وايت ويل
ويل لخدمات صيانة وايت ويل
خدمات الصيانة والإصلاح والتشخيصات لكل انواع أجهزة وايت ويل ، وهي تضمن لكم تقديم خدمات على أعلى مستوى بأسعار معقولة، الفنيون الذين يعملون في مركز صيانة وايت ويل مدربون على أحدث التقنيات ولديهم أحدث المعدات التشخيصية لتحديد أية أخطاء موجودة بأجهزة وايت ويل بأسرع وأدق درجة ممكنة ، قطع الغيار التى يتم استبدالها ستكون على نفس الدرجة من الجودة تماما مثل الأجزاء الأصلية التي كانت موجودة بجهاز وايت ويل ، تعمل شبكة توكيل وايت ويل لخدمات صيانة وايت ويل طبقا للمعايير المهنية وايت ويل لخدمات صيانة وايت ويل
، تم الحصول على موافقة معايير حمايةوخدمة المستهلك The Consumer Codes Approval التي تديرها معهد المعايير التجارية Trading Standards Institute على المعايير المهنية الخاصة بمراكز صيانة وايت ويل لحدمات صيانة أجهزة وايت ويل ، هذا التعهد تجاه العميل يمنحك راحة البال بعلمك بأنك لن تحصل فقط على أفضل خدمة فنية، وإنما أفضل خدمة عملاء أيضا، بتكلفة أقل مع أعلى معايير الخدمات الفنية وخدمة العملاء، لم لا تتصل إذن بمركز صيانة وايت ويل لخدمات صيانة أجهزة وايت ويل ؟

nada said...

صيانة سامسونج
صيانة ال جي
صيانة توشيبا
صيانة سيمنس
صيانة بوش
صيانة دايو
صيانة اريستون
صيانة سيمنس

ابو السيد said...


بسم الله الرحمن الرحيم نحن فى شركة الكمال نقوم بجميع خدمات نقل العفش والاساس بافض الطرق تحت اشراف

فريق كبير مدرب على اعلى مستوى من المستويات مع الفك والتركيب
شركة نقل اثاث بالطائف
شركة نقل اثاث بجازان
شركة نقل اثاث بحائل
شركة نقل اثاث ونقل عفش بحائل
والسلامة عليكم ورحمة الله وبركاته


MANOOOL said...

شركة مكافحة حشرات بجدة

شركة مكافحة بق الفراش

شركة مكافحة العتة بجدة


افضل شركة مكافحة صراصير بجدة

MANOOOL said...

شركة سمر جدة لمكافحة حشرات بجدة

شركة مكافحة حشرات بجدة

شركة مكافحة بق الفراش

شركة مكافحة العتة بجدة

افضل شركة مكافحة صراصير بجدة

nada said...


صيانة سامسونج
صيانة ال جي
صيانة توشيبا
صيانة سيمنس
صيانة بوش
صيانة دايو
صيانة اريستون
صيانة سيمنس

Vshayari said...

OMG OMG OMG!!
Your Post Is Very Informative
Thanks For Sharing
Visit Our Sites Also

Best Pick Up Lines
Dirty Pick Up Lines For Girls
Cute Pick Up Lines For Girls
Corny Pick Up Lines
Funny Pick Up Lines For Flirting
Cheesy Pick Up Lines to Get a Girl
Best Tinder Pick up Lines
Letest Cute Pick Up Lines
New Dirty Pick Up Lines
Letest Corny Pick Up Lines
Funny Pick Up Lines That Are Guaranteed Works
Best Cheesy Pick Up Lines
Best Tinder Pick up Lines

Vshayari said...

OMG OMG OMG!!
Your Post Is Very Informative
Thanks For Sharing
Visit Our Sites Also

Best Pick Up Lines
Dirty Pick Up Lines For Girls
Cute Pick Up Lines For Girls
Corny Pick Up Lines
Funny Pick Up Lines For Flirting
Cheesy Pick Up Lines to Get a Girl
Best Tinder Pick up Lines
Letest Cute Pick Up Lines
New Dirty Pick Up Lines
Letest Corny Pick Up Lines
Funny Pick Up Lines That Are Guaranteed Works
Best Cheesy Pick Up Lines
Best Tinder Pick up Lines

maktabtk said...

يركز موقع مكتبتك على أهمية اعداد الاطار النظري باعتبارها الهيكل العظمي لكافة الابحاث العلمية والتي يجب تقديمها بأسلوب علمي دقيق يعرض هدف البحث وموضوعه بصورة مبسطه يسهل استيعابه

truongmuunghenhan said...

Thanks for sharing, nice post! Post really provice useful information!

Giaonhan247 chuyên dịch vụ mua hộ hàng mỹ uy tín với các loại nước hoa pháp chính hãng từ dịch vụ mua hộ nước hoa pháp uy tín, và bảng giá cước gửi hàng đi mỹ cũng như hướng dẫn cách mua hàng trên ebay việt namcách tính thuế khi mua hàng trên Amazon uy tín, giá rẻ.

Kelley Renner said...

You most likely have a normal compression ratio( the mount of fuel to air that gets compressed when the piston goes thru its normal travel) Extra octane does not "clean" and engine nor does it help in any way if your engine is not designed to burn it. Consult your boat engine's manual to see what octane you should be using. Click here: https:boatingmagz.com

Anonymous said...

assignment help in united states
assignment help in australia
assignment help in united kingdom
assignment help in new zealand
assignment help in uae
assignment help in canada

MANOOOL said...

شركة نقل اثاث بمكة

افضل شركة تخزين عفش بمكة

شركة تنظيف سجاد بالبخار بمكة

تنظيف مساجد بمكه

افضل شركة تنظيف خزانات المياة بمكة

أفضل شركة مكافحة فئران بمكه

افضل شركة مكافحة الصراصير بمكة

MANOOOL said...

الشركة الدولية لمكافحة الحشرات بجدة

افضل شركة مكافحة حشرات بجدة

افضل شركة مكافحة حشرات بجده

أفضل شركة مكافحة بق الفراش فى جدة

أفضل شركة مكافحة الصراصير بجدة

شركة مكافحة فئران فى جدة

أفضل شركة مكافحة النمل الأبيض بجدة

على محمد said...


شركة تنظيف كنب بالدمام
شركة تنظيف كنب بالخبر
شركة تنظيف موكيت بالخبر
شركة تنظيف بالدمام
شركة تنظيف بالخبر
شركة تنظيف بالجبيل
شركة تنظيف بالاحساء
شركة تنظيف بالقطيف

nada ahmed said...

صيانة وايت ويل
صيانة ويرلبول
صيانة فريجيدير
صيانة اريستون
aeg صيانة
صيانة ايستهاوس
صيانة جورنجي
صيانة وايت بوينت

MANOOOL said...

مكافحة حشرات بجدة

مكافحة حشرات بالطائف


مكافحة حشرات بالرياض


تنظيف خزانات بجدة


شركة كشف تسربات المياه بمكة


شركة كشف تسربات المياه بجدة

شركة كشف تسربات المياه بالطائف


تنظيف منازل بجدة

Anonymous said...

The author is the Director and Digital Marketing Expert in India, a Best SEO Company company in India. With experience of more than 5 years.

Piyush said...

thanks for this information...

Torrentz2 Proxy sites List
Techwiki

MANOOOL said...

شركة المصطفي كلين للخدمات

افضل شركة تخزين اثاث بجدة

]شركة تخزين اثاث و عفش بجدة

شركة عزل الأسطح والخزانات بجدة

شركات نقل اثاث بجدة

شركة مكافحة الحشرات بجدة

شركة تنظيف خزانات بجدة

شركة تنظيف منازل بجدة

mobile application development said...

Amazing Post. Your writing is very inspiring. Thanks for Posting.
Mobile App Development Company in chennai
mobile app development chennai
Mobile application development company in chennai
Mobile application development chennai
Mobile apps development companies in chennai
enterprise mobile app development company

Jhonathan said...

I have perused your blog its appealing and noteworthy. I like it your blog.
Java application development company
Java development company
Java outsourcing company
Hire java developer
java web development services

Software development company said...

I have scrutinized your blog its engaging and imperative. I like it your blog.
custom application development services
Software development company
software application development company
offshore software development company
custom software development company

Unknown said...

epson l130 driver download
epson l220 driver download
Download Driver Printer Epson L210
epson ecotank l3060 driver downloads
epson l396 driver downloads

best ppc company in india said...

I have inspected your blog its associating with and essential. I like it your blog.
ppc services in india
best ppc company in india
ppc services india
ppc advertising services
ppc services company

Priya Sharma said...

I really like the look of your site and its Delhi Escorts content. We wait for the latest from this site.

deepak ogen said...

I am really happy to read this blog post, you have many information put it on this article, am really suggest to my all dear friend to visit this blog post and collect this useful and valuable information, keep sharing like this type of blog post, thank you so much for read my comment, if any one searching top 5 website designing company in India please come on my website we are doing for you any type of website design for your, business grow up your work grow up your money.
Web Designing Company in Delhi

sheweta sinha said...

The way you describe details in your blog is really good. I hope you'll keep writing such good blogs.
Escorts in Delhi
Delhi Escorts

Kala Kutir said...

Am visit of many blog but not get valuable information, but after seen your blog provide it me a lot of valuable and useful information I really like to thank you so much for share this information with us, if are inserted in grow up your life style and also grow up your looking so please come on my website am put it on many information so and visit again time thank you so much for read my comment I hope your also like my comment and you also go on my web page.
Lifestyle Magazine

Unknown said...

لوله بازکنی تهران توسط شرکت سرویس لوله با بهترین کیفیت و قیمت انجام می شود. همچنین تخلیه چاه تهران نیز به بهترین نحو ممکن در سراسر استان تهران انجام می شود

على محمد said...


شركة تنظيف بالاحساء
شركة تنظيف بالقطيف

Muhammad Aasim said...

Thats a Great Post. I hope you will continue to post such great posts again and again

I came here after reading Best Mini Projectors and Netgear Nighthawk Ac1900 R7000 Review

metwaly said...

This content is very cool thank you very much
شركة مكافحة حشرات بحائل
شركة رش مبيدات بحائل

metwaly said...

This content is very cool thank you very much
شركة مكافحة حشرات بحائل
شركة رش مبيدات بحائل
شركة مكافحة حشرات بخميس مشيط
شركة مكافحة حشرات بأبها

احمد said...


ما هي خدمة صيانة وايت ويل
؟!
يقدم مركز صيانة وايت ويل
ويل لخدمات صيانة وايت ويل
خدمات الصيانة والإصلاح والتشخيصات لكل انواع أجهزة وايت ويل ، وهي تضمن لكم تقديم خدمات على أعلى مستوى بأسعار معقولة، الفنيون الذين يعملون في مركز صيانة وايت ويل مدربون على أحدث التقنيات ولديهم أحدث المعدات التشخيصية لتحديد أية أخطاء موجودة بأجهزة وايت ويل بأسرع وأدق درجة ممكنة ، قطع الغيار التى يتم استبدالها ستكون على نفس الدرجة من الجودة تماما مثل الأجزاء الأصلية التي كانت موجودة بجهاز وايت ويل ، تعمل شبكة توكيل وايت ويل لخدمات صيانة وايت ويل طبقا للمعايير المهنية وايت ويل لخدمات صيانة وايت ويل
، تم الحصول على موافقة معايير حمايةوخدمة المستهلك The Consumer Codes Approval التي تديرها معهد المعايير التجارية Trading Standards Institute على المعايير المهنية الخاصة بمراكز صيانة وايت ويل لحدمات صيانة أجهزة وايت ويل ، هذا التعهد تجاه العميل يمنحك راحة البال بعلمك بأنك لن تحصل فقط على أفضل خدمة فنية، وإنما أفضل خدمة عملاء أيضا، بتكلفة أقل مع أعلى معايير الخدمات الفنية وخدمة العملاء، لم لا تتصل إذن بمركز صيانة وايت ويل لخدمات صيانة أجهزة وايت ويل ؟

صيانة جولدي
صيانة سيمنس
رقم تسويق الكتروني
صيانة الاسكا
صيانة سيمنس
صيانة توشيبا
صيانة دايو

ddff20 said...

تورال صدالی
ناهیده باباشلی
پرویز بلبل
واسیف عظیم اوف
افت فرمان قیزی

ss said...

Welcome to Mumbaihotcollection.com, home of the finest Mumbai escorts in Mumbai area. Our Mumbai escorts are the finest Mumbai has to offer and will provide an unforgettable Mumbai Escort experience!
Escorts in mumbai
Escort service in mumbai
Mumbai escorts
Mumbai call girls
Call girls in mumbai
Escorts mumbai
Mumbai escorts services
Gurgaon escorts
Independents mumbai escorts
Mumbai escorts independents
Mumbai Escorts services
Escort service in mumbai
Escorts in delhi
Escort service in delhi
delhi escorts service

Unknown said...

smadav 2019 for pc
smadav 2019 windows 10
smadav 2019 windows 8
smadav 2019 windows 7
smadav 2019 windows XP

Garima Chopra said...

Are looking for model and independent call girls escorts in Chennai where you’re on business, get-away, occasions, hot and happening stay Escorts Girls in Chennai then Sexy Chennai Escorts is the most ideal approach to scan for independent Escorts in Chennai. You will utilize this Chennai Escorts site page as a snappy and straight forward to find females closest to your area in Chennai. We have been in business here in Chennai since 2003. From begins we have direction ourselves to the following dimension of business see than exchange escort in Chennai. We are intense regarding what we are doing in Sexy Chennai Escorts. The Chennai Escort Service offered by Sexy Chennai Escorts site are entirely for entertainment purposes.

Chennai Escorts
independent Escorts in Chennai
Chennai Escort Agency
Chennai Escort
Escorts Service in Chennai
Call Girls in Chennai
Chennai Escort Service
Independent Chennai Escorts
Russian Escorts in Chennai

Sathya said...

Interesting information and attractive.This blog is really rocking... Yes, the post is very interesting and I really like it.I never seen articles like this. I meant it's so knowledgeable, informative, and good looking site. I appreciate your hard work. Good job.
Kindly visit us @
Sathya Online Shopping
Online AC Price | Air Conditioner Online | AC Offers Online | AC Online Shopping
Inverter AC | Best Inverter AC | Inverter Split AC
Buy Split AC Online | Best Split AC | Split AC Online
LED TV Sale | Buy LED TV Online | Smart LED TV | LED TV Price
Laptop Price | Laptops for Sale | Buy Laptop | Buy Laptop Online
Full HD TV Price | LED HD TV Price
Buy Ultra HD TV | Buy Ultra HD TV Online
Buy Mobile Online | Buy Smartphone Online in India

Anonymous said...

www.lampungservice.com
lampungservice.com
Indonesian Courses
Komponen HP
Cara Menghidupkan HP Mati Total Baterai Tanam
Macam Macam IC
Cara Memperbaiki LCD
Lembaga Kursus Terbaik Indonesia
Cara Menghidupkan HP Mati Total
Youtube

Anonymous said...

Panasonic
Samsung
Huawei
Service iPhone Lampung
iPhone
Vivo
Oppo
Xiaomi
Service HP Bandar Lampung

Lillian J. Turner said...

Nice Post

What is URL Shortner and Uses

Why to use Instagram for Business

Aniksha Negi said...

Welcome to our Chennai Escorts Agency Administrations home page where you can get all the conceivable subtleties and answers to every single inquiry of yours. These Chennai Escorts including Chennai model escorts and Russian model Escorts in Chennai are constantly amusement for anything. If you visit this site, at that point you will be very shocked to have found a distinctive scope of Free Chennai Escorts They are just hypnotizing in whatever they do and will insightfully execute their activity of temptation so as to make their customer's wants run wild. They embrace every single customer calls with equivalent earnestness and accuracy so our Autonomous Independent Escorts in Chennai organization never loses its appeal and notoriety which has dependably been an indication of magnificence and accomplishment for us.

Chennai Escorts Agency
Independent Escorts in Chennai
Chennai Escort
Escorts Service in Chennai
Call Girls in Chennai
Chennai Escort Service
Independent Chennai Escorts
Russian Escorts in Chennai

Chennai Escorts said...

There are many call girls service provider in Chennai, but they don’t provide such kid of booking facilities as we provide to our customer with full security for their privacy. As many people come here for their mental and physical pleasure but due to lack of information and security they can’t full fill their needs and demands, so what we do for them we have this booking facilities available for theme where they can book best related call girls by just a simple call button without sharing their personal information with hotel facilities in best price.

Chennai Escorts

Independent Escorts in Chennai

Chennai Escort Agency

Chennai Escort

Escorts Service in Chennai

Call Girls in Chennai

Chennai Escort Service

Independent Chennai Escorts

Russian Escorts in Chennai

Anonymous said...


youtubelampung.blogspot.com
bimbellampung.blogspot.com
bateraitanam.blogspot.com
lampungservice.com

Decipher Zone Softwares said...

https://decipherzone.com/blog-detail/Latest-Artificial-Intelligence-Trends-2019

Latest Artificial Intelligence Trends 2019

Decipher Zone Softwares said...
This comment has been removed by the author.
Dwarka escorts said...


Hello Friends My Name is Mahi Verma And I Am An Independent call girl living in manali and i am doing Part Time Job In Mahi Escorts Agency Here Is Lot Of Call Girls Avialable In this agency So U can Call Us And Book An Escorts.
Manali Escorts
Manali Call Girls
Escorts In Manali
Call Girls In Manali

Parsan said...

Thank you for sharing such a great information but we are India's best service provider of Engineering Geophysics - Parsan


Utility Detection and Mapping

Magnetic Method Surveys

Shotblasting said...

Very nice post and right to the point. also, see other posts really good content I find here. Thank you.
shot blasting machine
shot blasting
sand blasting
sand blasting machine
steel shots distributors
Sandblasting Abrasive media

Anonymous said...

iphoneiphone vivoaxiooiphonebimbelbateraiNatarMakalahandroid

Anonymous said...


Lampung
android
lampungservice.com
lampungservice.com
lampungservice.com
lampungservice.com
lampungservice.com
lampungservice.com

Anonymous said...

Indonesia
Easy
Learning
Indonesian
Jual Beli HP
bimbelbateraiLampung
Service HPlampungservice.com

Anonymous said...

Indonesia
Easy
Learning
Indonesian
Jual Beli HP
bimbelLampung
Service HP
Best Online Store Indonesia
lampung

OSS Certification said...

Thanks for sharing such a great information but we are India's best service provider of ISO 45001 Certification - OSS Certification.

iso 14001 certification

iso 9001 certification

iso 27001 certification

iso 22000 certification

marketing said...

تاج المملكة
شركة تركيب غرف نوم بالرياض

شركة تركيب اثاث ايكيا بالرياض
فني تركيب اثاث ايكيا بالرياض
فك وتركيب غرف نوم بالرياض

شركة تركيب باركيه بالرياض
فني تركيب باركيه بالرياض
شركة تركيب طارد حمام بالرياض

شركة مكافحة حمام بالرياض
شركة تركيب ستائر بالرياض

marketing said...

فني تركيب ستائر بالرياض

شركة تنظيف مكيفات بالرياض
شركة نقل اثاث من الرياض الي الاردن
نجار بالرياض
فني نجار بالرياض
فني تركيب غرف نوم بالرياض
تركيب غرف نوم صيني بالرياض
فك وتركيب غرف نوم صيني بالرياض
فني تركيب غرف نوم صيني بالرياض
فني تركيب مطابخ بالرياض

marketing said...

فك وتركيب مطابخ بالرياض
فني فك وتركيب مطابخ بالرياض
شركة تركيب ورق جدران بالرياض
نجار خشب بالرياض

مظلات خشبية
مظلات مدارس
سواتر حديدية

marketing said...

أفكار
افكار المظلات والسواتر
مؤسسة أفكار
هناجر
برجولات
لكسان
مظلات لكسان
شبوك
كلادينج
تركيب بيوت شعر

marketing said...

بيوت شعر الرياض
بيوت شعر
مظلات
تركيب مظلات
سواتر
تركيب سواتر
جبس امبورد
ديكورات جبس امبورد
قرميد
ديكورات

marketing said...

مظلات ساكو
مظلات سيارات
سكريت زجاج
تغطية الدينمو والفلاتر
مقاولات عامة
اعمال الترميم والصيانة
تغطية خزانات المياه
مقاولات البناء
ملاحق نجارة
حداد مظلات

marketing said...

هناجر ومستودعات
مقاول هناجر
مظلات حدائق
مظلات مسابح
مظلات الاسواق
مظلات هرمية
مظلات اسطح
مظلات بولي ايثيلين
مظلات الشد الانشائي
مظلات مداخل الفلل

marketing said...

سيرفس تاون
شركة تنظيف بحفر الباطن
شركة مكافحة حشرات بحفر الباطن
شركة كشف تسربات المياه بحفر الباطن
شركة عزل اسطح بحفر الباطن
شركة نقل عفش بحفر الباطن
شركة تنظيف بحائل
شركة مكافحة حشرات بحائل
شركة عزل اسطح بحائل
شركة كشف تسربات المياه بحائل

marketing said...

شركة نقل عفش بحائل
شركة تنظيف بالباحة
شركة عزل اسطح بالباحة
شركة كشف تسربات المياه بالباحة
شركة مكافحة حشرات بالباحة
شركة نقل عفش بالباحة
شركة عزل اسطح بالقصيم
كشف تسربات المياه بالدمام
شركة عزل اسطح بالدمام
شركة عزل اسطح بينبع

marketing said...

محترف الظل
مظلات
سواتر
مظلات اسطح
كلادينج
بيوت شعر
مظلات اسواق
برجولات
مظلات مسابح
مظلات مدارس

marketing said...

شبوك
مظلات مداخل فلل
مظلات سيارات
مظلات مساجد
مظلات بولي ايثيلين
مظلات خشبية
قرميد
سواتر خشبية
سواتر قماش
سواتر مدارس

marketing said...

مظلات مكة
هناجر
مظلات الشد الانشائي
مظلات هرمية
مظلات محترف الظل

نقل عفش من الرياض الى حفر الباطن
شركةنقل عفش بجيزان
نقل عفش بالرياض
نقل عفش جدة
نقل عفش جده

marketing said...

دليل كم
نقل العفش
افضل شركة نقل عفش
دليل شركات نقل العفش
دليل نقل عفش
ارخص شركات نقل العفش
نقل اثاث
نقل عفش
شركة نقل عفش
شركة نقل عفش بجدة

marketing said...

نقل عفش بجدة
دليل شركات نقل العفش بجدة
شركة تخزين عفش بجدة
شركة تخزين العفش بجدة
شركة تخزين عفش جده
شركة تخزين اثاث بجدة
شركة نقل عفش بالرياض
نقل عفش بالرياض باكستاني
شركة نقل عفش بنجران
نقل عفش بنجران

marketing said...

شركة نقل عفش بخميس مشيط
نقل عفش بخميس مشيط
شركة نقل عفش بابها
نقل عفش بابها
افضل شركات نقل العفش بابها
شركة نقل عفش بالدمام
نقل عفش بالدمام
شركة نقل عفش بجازان
افضل شركة نقل الاثاث بجازان
نقل عفش من الدمام الى نجران



marketing said...

مظلات وسواتر اساطير العمار
مظلات
شبوك
قرميد
هناجر
سواتر
مظلات سيارات
سواتر خشبية
سواتر حدائق
هناجر ومستودعات

marketing said...

برجولات
كلادينج
تركيب مظلات
مظلات حدائق
هناجر ومستودعات الرياض
تركيب سواتر
مظلات وسواتر
مظلات لكسان
مظلات حدائق الرياض
بيوت شعر

marketing said...

تركيب مظلات سيارات الرياض
قرميد الرياض
مظلات وسواتر الرياض
تصاميم واجهات محلات كلادينج
سواتر حديدية
تركيب الكلادينج
مظلات الرياض
سواتر الرياض
تركيب مظلات الرياض
تركيب سواتر الرياض

marketing said...

مظلات سيارات الرياض
بيوت شعر الرياض
شبوك الرياض
تركيب هناجر الرياض
تركيب هناجر
تركيب قرميد حديد
مظلات ساكو
مظلات مدارس
مظلات مسابح
مظلات هرمية

marketing said...

شركة أعمال للمقاولات
مظلات
هناجر ومستودعات
هناجر
كلادينج
بيوت شعر
قرميد
مقاولات عامة
مقاول معماري
ترميمات

marketing said...

مقاولات البناء
تصاميم واجهات محلات كلادينج

Video Production Company said...
This comment has been removed by the author.
Shotblasting said...
This comment has been removed by the author.
Video Production Company said...

Excellent and nice post. It will beneficial for everyone. Thanks for sharing such a wonderful post.
video production company
film production house
Corporate film makers
Documentary Film Makers in Delhi
Filmmakers in Delhi
promotional video services in delhi ncr

Anonymous said...

youtube.com
http://servicehpterdekat.blogspot.com/
http://servicehpterdekat.blogspot.com/http://servicehpterdekat.blogspot.com/
https://storeindonesian.blogspot.com/ https://storeindonesian.blogspot.com/
http://lampungservice.com/
http://lampungservice.com/
http://lampungservice.com/

el dosoky said...


تعتبر النظافة أحد أكثر الأمور أهمية في حياتنا لأن النظافة تمنحنا صحة جيده وتبعد عن الكثير من الأمراض المختلفة لذلك وصي الرسول صلى الله عليه وسلم بالنظافة وجعلها من الأمور الدينية التي يجب علي كل مؤمن الاهتمام بها لذلك يجتهد الكثير من أصحاب المنازل في تنظيف المنازل الخاصة بهم أو شركاتهم أو الفلل الخاصة بهم ويسعوا في هذا الأمر ولكن بعد فترة يجدون أن الأمر مرهق ويجدون صعوبة بالغة في الاستمرار بعملية التنظيف ولكن مع شركتنا سهلنا كل الصعب ووضعنا طرق الامان لك ولعائلتك ومنزلك وهذا بوسائل الخبره والمعدات الحديثه الجاهزه تماما




شركة تنظيف خزانات بالرياض

شركة تنظيف منازل بالرياض

شركة عزل خزانات بالخرج

شركة مكافحه حشرات بالخرج

شركة تسليك مجاري بالخرج

شركة عزل اسطح بالخرج

شركة تنظيف خزانات بالخرج

aryanoone said...

Thanks for sharing such a nice Blog.I like it.
mcafee com activate
activate my norton antivirus
norton product key
mcafee antivirus activation key
comcast support telephone number
avg antivirus tech support phone number
webroot contact number
kaspersky support phone number
Outlook helpline number
microsoft edge support number

Tad D. Riley said...

Very nicely written. Thanx for sharing.

lenderslists

review for loans

Helen Henson said...

Awesome post

Thanks
slashdot.org | www.bagtheweb.com | guestpostblogging | articleblogin

Laxman S said...

The article is very interesting and very understood to be read, may be useful for the people. I wanted to thank you for this great read!! I definitely enjoyed every little bit of it. I have to bookmarked to check out new stuff on your post. Thanks for sharing the information keep updating, looking forward for more posts..
Kindly visit us @
Madurai Travels
Best Travels in Madurai
Cabs in Madurai
Tours and Travels in Madurai

sco said...

A Night of Devotion and Intimate Moments with Gurgaon Escorts

A large number of people reside here but carry on their trades in Delhi or are employed there. The location and the richness of the history of this particular city or province added to the growth of the Call Girls services, various individuals and industries have decided to settle their business in Sushant Lok which became profitable for most of the business set up in this city most especially the Call Girls business. One of the most prominent business in Sushant Lok is the Call Girls business which became very productive owing to the city’s population and the social relationship of the people which depicts that most of the people call girls in Sushant Lok ,call girls gurgaon, gurgaon call girls, gurgaon call girls service, russian call girls in gurgaon, high profile call girls, high profile call girls in gurgaon,enjoys having fun and pleasure after various hours of work and this led to the existence of the call girls in Sushant Lok . The Call girl business has triumphed in this city and it has also developed competitiveness in its nature in terms of different call girls services with different services to offer to their various customers.

https://www.callgirlsingurgaongirls.com/
https://www.callgirlsingurgaongirls.com/sikanderpur
https://www.callgirlsingurgaongirls.com/sushant-lok
https://www.callgirlsingurgaongirls.com/call-girls-in-gurgaon
https://www.callgirlsingurgaongirls.com/call-girls-delhi
https://www.callgirlsingurgaongirls.com/gurgaon-call-girls
https://www.callgirlsingurgaongirls.com/blog

Call Girls In Gurgaon MG Road, Call +91 8587837371
Call Girls Service in Gurgaon

SHONALI said...

call girl in Bangalore
Escort in Bangalore
VIP escort in Bangalore
Bangalore escorts
Escort Service in Bangaloree

Mahiescorts said...

We offer high class female independent escorts in Manali, the best Manali escorts agency at Neha Rajput are available 24/7. Sizzling girls for initiating romantic.
Manali Escorts
Manali Call Girls
Escorts In Manali
Call Girls In Manali

Mahiescorts said...

We offer high class female independent escorts in Manali, the best Manali escorts agency at Neha Rajput are available 24/7. Sizzling girls for initiating romantic.
Manali Escorts
Manali Call Girls
Escorts In Manali
Call Girls In Manali

sco said...

Spend some quality time with our gorgeous Females

One main component of living a fully enjoyable life can be attributed to fun and extreme pleasure, it has been conceptualized in the global world that men only get their happiness through the type of pleasure they receive in their youthful and energetic lifetime, everything in life will appear irrelevant without the right pleasurable moments. Many travels far and wide to get here, the city which is very close to the border further makes it possible for people to come in search of pleasure at the escorts service gurgaon, gurgaon escorts, gurgaon escorts service, russian escorts in gurgaon Call girls in MG Road Gurgaon. Call : +91 8587837371
The meaning of life is mainly to get utmost and life best pleasure out of every situation in Life even if it is bad. Our society has a way of defining our type of pleasure we get and this is why we must settle and be resided in an area that can give us utmost pleasure without any limitation and this is a great example of living in MG Road call girl in Gurgaon, hotel escorts in gurgaon, college girls in gurgaon, housewifes in gurgaon with the hot sexy call girls they made available for your sexual satisfaction anytime, any day. Call : +91 8587837371

https://www.callgirlsingurgaongirls.com/
https://www.callgirlsingurgaongirls.com/sikanderpur
https://www.callgirlsingurgaongirls.com/sushant-lok
https://www.callgirlsingurgaongirls.com/call-girls-in-gurgaon
https://www.callgirlsingurgaongirls.com/call-girls-delhi
https://www.callgirlsingurgaongirls.com/gurgaon-call-girls
https://www.callgirlsingurgaongirls.com/blog

Call Girls In Gurgaon MG Road, Call +91 8587837371
Call Girls Service in Gurgaon

Manali Escort Service said...

We are the provider of really top class sexual offerings from all the escorts businesses situated in India and we have the awesome reputation among rest of the escorts group we've the power of erotic offerings and rub down services to our clients our call girls will never can help you down by using their sexual offerings they come to be very aggressive on the time of attractive conferences if you need that you want an experience like your wife then you are at the right abode due to the fact our call ladies will pride you want their spouses and they'll study like their men we've got a group of a few professional supervise who will provide you with a completely appropriate supervision in the direction of the intercourse edification due to the fact it is our responsibility to guide the ones customers who come to the very first time because we want that the purchaser who come to the primary time to us he should be come to us again and again because we don't need to overlook our ordinary clients we have an awesome variety of this kind of home and international women if you virtually make your life exciting sparking then you have to meet the our usually girls who will provide you the sensation like your partner to make a lifestyles with complete of entertainment and complete of enjoyment then you need to come as a minimum one time.




Call Girls In Manali

Call Girl In Manali

Manali Escort

Manali Escorts

Nandita Rao said...

Having a sexual encounter with a seductive call girl without any kind of specific sex acts can leave you with an experience that you get usually with your wife or girlfriend. If you need to enjoy the erotic moments uniquely in the most erotic way, it is necessary to make sure you have got experienced and professional female escorts.


independent escorts in chennai
chennai independent escorts
independent escorts in chennai
chennai escorts services
chandigarh escorts services
jaipur independent escorts

Manali Escort Service said...

We are the provider of really top class sexual offerings from all the escorts businesses situated in India and we have the awesome reputation among rest of the escorts group we've the power of erotic offerings and rub down services to our clients our call girls will never can help you down by using their sexual offerings they come to be very aggressive on the time of attractive conferences if you need that you want an experience like your wife then you are at the right abode due to the fact our call ladies will pride you want their spouses and they'll study like their men we've got a group of a few professional supervise who will provide you with a completely appropriate supervision in the direction of the intercourse edification due to the fact it is our responsibility to guide the ones customers who come to the very first time because we want that the purchaser who come to the primary time to us he should be come to us again and again because we don't need to overlook our ordinary clients we have an awesome variety of this kind of home and international women if you virtually make your life exciting sparking then you have to meet the our usually girls who will provide you the sensation like your partner to make a lifestyles with complete of entertainment and complete of enjoyment then you need to come as a minimum one time.


Call Girls In Delhi

Call Girl In Delhi

Delhi Escort

Delhi Escorts

Manali Escort Service said...

We achieve ourselves in the professional finalization of all tasks to the client's fulfilment. Our customer help is, in fact, second to none, as is our choice of first-rate abilities. We are well known VIP Manali Escorts and cell phone females Marketing Booking agent, Professional Examining and Suggestions solutions located in Manali get touching Woman Company, We offer extremely Style Manali Escorts and cell phone females for offering Growing Man. Our Manali affiliates are available to Jodhpur for all public actions outside phone telephone phone calls, such as one occasion or occasion functions, supper applications, a night at the theatre, holiday reservations holidays and company travel reservations or perhaps more adoring at home or in the place experience. Please don't think twice to offer us a message these days. We are here to get it done for you.

Call Girls In Manali

Call Girl In Manali

Manali Escort

Manali Escorts

Zoya Khan said...

Hi gentleman Myself Sunaina Kaur High Profile Delhi Escorts and passionate Delhi call girl 23 year old 5.7" ft height lives and works in Delhi NCR. You can get me as call girls near me. I pass a broad number of associations from the Girl Friend Encounter to the one of a kind reduce seek globe of hermitic lifestyle, declination and control. I have a standard distinction of outfit, and a broad number of associations. Most likely you might need to have me out for a supper time share, or you could come and Appreciate supper off me? Reach me at - http://www.sunainakaur.com and http://www.zoya-khan.com/delhi-call-girl-mobile-number-with-photo.html

Rigid Box said...

Excellent Blog. I really want to admire the quality of this post. I like the way of your presentation of ideas, views and valuable content. No doubt you are doing great work. I’ll be waiting for your next post. Thanks .Keep it up! Kindly visit us @ Wallet Box | Perfume Box Manufacturer
Candle Packaging Boxes | Luxury Leather Box
Luxury Clothes Box | Luxury Cosmetics Box
Shoe Box Manufacturer | Luxury Watch Box

Entertainment said...

Hello All Welcome To Delhi Mumbai & Chandigarh Royal Escorts .Here We Are Serving Best Hot Call Girls In Delhi Mumbai & Chandigarh.If you are looking for Delhi Mumbai & Chandigarh Services Please click below link

Independent Escorts in Delhi

Mumbai Escorts

Delhi Escorts

Chandigarh Escorts

Independent delhi Escorts

Independent Mumbai Escorts

Celebrity Escorts Mumbai

Delhi Escorts

Delhi Escorts

VIP Delhi Escorts

Ozone said...

top 10
biography
health benefits
bank branches
offices in Nigeria
dangers of
ranks in
health
top 10
biography
health benefits
bank branches
offices in Nigeria
latest news
ranking
biography

Ozone said...

top 10
biography
health benefits
bank branches
offices in Nigeria
dangers of
ranks in
health
top 10
biography
health benefits
bank branches
offices in Nigeria
latest news
ranking
biography

«Oldest ‹Older   1 – 200 of 1045   Newer› Newest»