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From "Mikhail Fursov" <mike.fur...@gmail.com>
Subject Re: [drlvm][jit][win64] why jit perfomance so low?
Date Fri, 18 May 2007 13:27:45 GMT
I think the numbers you mention are from debug build.

The reason of significant compilation time increase when using Windows
x86_64 is MSVS2005 STL implementation. It does a lot of checks in debug mode
that MSVS2003 version did not.

On 5/18/07, Vladimir Ivanov <ivavladimir@gmail.com> wrote:
> Hello everyone,
> I have a small question about JIT performance on Windows x86_64: why
> the DRLVM kernel test java.lang.ClassGenericsTest, for example,
> required in my env:
> ~20 seconds to finish in the default mode;
> ~400 seconds to finish in the 'opt' mode;
> ~2000 seconds to finish in the 'server' mode.
> I know that this platform was only enabled but may be someone from JIT
> expert spends some time to improve performance a little bit?
> Thanks, Vladimir

Mikhail Fursov

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