On the 0x2DE day of Apache Harmony Mikhail Fursov wrote: > All, > I think this is not a good idea to make JIT always work in release mode. > I agree that STL performance we have in JIT in debug build is also almost > unusable on Windows64bit. > I propose learning MSVC2005 STL options and check is we can disable some > checks and speedup the JIT. > Here is an example of such an option: > http://groups.google.co.nz/group/microsoft.public.vc.stl/browse_thread/thread/24426056e5b256ea/0efe8dcc5f3ed97b?lnk=gst&q=debug+performance&rnum=2&hl=en#0efe8dcc5f3ed97b
+1 to disable thorough STL checking in w/64/debug if possible > Right now I can't test it because I run tests on my Windows64bit PC, but I > will check this one and other options tomorrow. > > > On 5/22/07, Xiao-Feng Li <[EMAIL PROTECTED]> wrote: > > > > Vladimir, if the testing is really slow, I think it's ok to try the > > release build on Win64. But I personally prefer to use debug build for > > other cases if their times are ok, because debug build can help to > > identify the reasons of any potential breaks. > > > > (Or we can use release build for only the JIT module, while keeping > > other modules in debug build.) > > > > Thanks, > > xiaofeng > > > > On 5/22/07, Vladimir Ivanov <[EMAIL PROTECTED]> wrote: > > > Does it means that we can use only 'release' build for testing while > > > 'debug' build required more than 10 hours to run DRLVM tests? > > > > > > thanks, Vladimir > > > > > > On 5/18/07, Mikhail Fursov <[EMAIL PROTECTED]> wrote: > > > > 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 <[EMAIL PROTECTED]> 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 > > > > > > > > > > > > > -- > > http://xiao-feng.blogspot.com > > > > > > -- > Mikhail Fursov -- Egor Pasko
