Cool! A nice comparison, and congratulations, Phillipe. -----Original Message----- From: bug-gnubg-bounces+ian.shaw=riverauto.co...@gnu.org [mailto:bug-gnubg-bounces+ian.shaw=riverauto.co...@gnu.org] On Behalf Of Michael Petch Sent: 27 May 2011 06:09 To: bug-gnubg@gnu.org Subject: [Bug-gnubg] Performance Gains from 20090915 to 20110525 Codebases
Hi All, I had been compiling a bunch of statistics lately, and happened to have built two 32Bit version of GNUBG under Debian Squeeze (6.0) Stable. I used 32 Bit since the older one didn't compile cleanly for the older version. I pretty much used full optimizations and SSE2, Threading on. GTK was built in but the test were run in terminal mode. Hardware: 2xXenon 5405 (4 cores each, 12MB L2 Cache, No HT), 2.00 GHZ, 10 GB DDR2-6400 RAM - 8 Cores total. Debian 6.0 Kernel 2.6.32-5-amd64 x86_64 GCC version 4.4.5-8 . Configure Options: CFLAGS="-O3 -funsafe-loop-optimizations -funsafe-math-optimizations -ffast-math -freciprocal-math -ftree-vectorize -mfpmath=sse -mssse3 -msse3 -msse -msse2 -fomit-frame-pointer -msahf" ./configure --enable-threads --enable-sse=sse2 The attached graph (also found at http://www.capp-sysware.com/analysis/studies/20090915to20110525PerfGain.png ) is basically a plot of the Cache and Threads vs the Performance gain from the Old 20090915 code to the 20090525 code. I haven't run it against a rollout (or batch of them yet). I believe Philippe Michel mentioned a 30-40% gain. I'm seeing 36%-40% depending on the variables but 38% would be about the average. I believe most of Philippe's changes provide the bulk of the performance increases. -- Michael Petch CApp::Sysware Consulting Ltd. OpenPGP FingerPrint=D81C 6A0D 987E 7DA5 3219 6715 466A 2ACE 5CAE 3304 _______________________________________________ Bug-gnubg mailing list Bug-gnubg@gnu.org https://lists.gnu.org/mailman/listinfo/bug-gnubg
