My .NET perf studies

[Jeremy Falcon]

Rama Krishna wrote: 2. Once everything is JIT compiled managed code is almost as fast as unamanged code Just in case you want a number with it... I was at some dinky conference a couple of weeks ago and one of the MS guys involved with .NET said it's about 90% as fast as native after it's JITted. But, that's taking his word because I haven't used much .NET yet. Jeremy Falcon Imputek "Great spirits have always found violent opposition from mediocrities. The latter cannot understand it when a man does not thoughtlessly submit to hereditary prejudices but honestly and courageously uses his intelligence." - Albert Einstein

[Rama Krishna Vavilala]

My tests show that it varoes from 85%-110%

[Shog9 0]

Interesting... Thanks Rama! :)

- Shog9 -

Aaah... It's time to relax. You know what that means: a glass of beer, your favorite ergo chair... And of course, The Code Project loaded on your Personal Computer System. So go on, and indulge yourself, put your feet up. Lean back and just enjoy the articles. After all, CP sooths even the savage :bob:

[Rama Krishna Vavilala]

Just to let you know the only reason why I am not able to post this article is that porting your BallonHelp to .NET is on a higher priority (it is still half finished).:)

[Ed K]

Any tests against java? We are in a debate here about using C# vs java on a web services project. ed The nice thing about egotists is that they don't talk about other people. Lucille Harper

[Shog9 0]

I appreciate it! Very much looking foreward to seeing what you come up with :)

- Shog9 -

Aaah... It's time to relax. You know what that means: a glass of beer, your favorite ergo chair... And of course, The Code Project loaded on your Personal Computer System. So go on, and indulge yourself, put your feet up. Lean back and just enjoy the articles. After all, CP sooths even the savage :bob:

[Shog9 0]

BTW: Nice nick - had to grab it before kevnar, eh? ;)

- Shog9 -

Aaah... It's time to relax. You know what that means: a glass of beer, your favorite ergo chair... And of course, The Code Project loaded on your Personal Computer System. So go on, and indulge yourself, put your feet up. Lean back and just enjoy the articles. After all, CP sooths even the savage :bob:

[Rama Krishna Vavilala]

Ed K wrote: C# vs java I wish I could do a fair comparison. If you are thinking to windows OS then there is no place for java. I don't think that the sun's VM on windows JIT compiles java byte code. So don't think about java on windows. If you plan to use other OS than it may be justified.

[mstephens]

What tests did you do where JIT compiled code ran 10% faster than regular compiled code? Sounds too good to be true!

[Rama Krishna Vavilala]

Run the my code and make five consequitive calls while calculating 10-100 prime nos. You will find that JIT compiled code runs faster than unmanaged code in third iterstaion onwards.

[Jarek G]

Rama Krishna wrote: For some reasons for large prime numbers VB actually out performs C++. One reson can be that C++ code is not optimized enuff? large numbers are better supported in VB than C++. But if you write a good class that can manage large numbers in bit form I think its going to be faster than VB with JIT. Otherwise there must be something wrong. You can say any foolish thing to a dog, and the dog will give you a look that says, My God, you're right I never would've thought of that. * Dave Barry What do you want to patch today?

[David Stone]

Woohoo! .NET implementation of Shog's BalloonHelp! Which language is it in? (Please let it be C#...Please let it be C#...) :laugh: David Stone dstone@newcenturytitle.com
Procrastination is like masturbation; it's all good until you realize you just screwed yourself. -Writing on a bench at college

[jan larsen]

That's not fair, if your'e comparing rich GUI's where Swing is the only alternative then your'e right, but if you can do with good old AWT then I don't think you can get it any faster as the windowing is done using JNI and native peers. "It could have been worse, it could have been ME!" -Rincewind

[Rama Krishna Vavilala]

We are not comparing windowing or client apps. The point was about writing a webservice

[jan larsen]

Oops   :-O , missed that completely. But anyway then: Goldmember wrote: don't think that the sun's VM on windows JIT compiles java byte code Since Java2 (Java 1.2) the default runtime VM is a JIT, HotSpot if i remember correctly, and it is perfectly supported on Windows (actually, it took quite a while before it was available for HP-UX). I haven't seen any performance reviews on any of those WM's but the speed difference is VERY remarkable when comparing GUI apps (though the largest difference is found in the initialization of the VM). When a WM is up and running a non-GUI app though, i don't expect to see that much difference between a pure C# thingy and a pure Java whatnot. Besides: didn't i read once that there was a Visual J#?... J++, hated by slashdot maniacs and other "pure Java" freaks that never discovered the "Do not use microsoft only features" in project settings. "It could have been worse, it could have been ME!" -Rincewind