Hello, On 20 May 08:24, H.J. Lu wrote: > ABI alignment should be sufficient for correctness. Bigger alignments > are supposed to give better performance. Can you try this patch on > HSW and SLM to see if it has any impact on performance?
Here is perf. data of your patch. Only HSW so far HSW, 64 bits, base Test Previous Current Ratio(%) 400.perlbench 37.7000 37.7000 +0% 401.bzip2 24.8000 24.7000 -0.40% 403.gcc 35.1000 35.2000 +0.28% 429.mcf 41.7000 42.0000 +0.71% 445.gobmk 26.9000 27.0000 +0.37% 456.hmmer 27.2000 27.2000 +0% 458.sjeng 30.2000 30.1000 -0.33% 462.libquantum 77.4000 76.7000 -0.90% 464.h264ref 52.5000 52.8000 +0.57% 471.omnetpp 23.8000 23.7000 -0.42% 473.astar 23.2000 23.1000 -0.43% 483.xalancbmk 39.8000 40.1000 +0.75% 410.bwaves 78.4000 78.5000 +0.12% 416.gamess 33.9000 33.9000 +0% 433.milc 34.7000 34.8000 +0.28% 434.zeusmp 38.6000 38.4000 -0.51% 435.gromacs 26.9000 27.0000 +0.37% 436.cactusADM 54.7000 62.0000 +13.34% 437.leslie3d 45.3000 45.3000 +0% 444.namd 27.2000 27.1000 -0.36% 447.dealII 56.7000 56.7000 +0% 450.soplex 39.3000 39.3000 +0% 453.povray 49.0000 49.1000 +0.20% 454.calculix 28.8000 29.3000 +1.73% 459.GemsFDTD 38.9000 39.0000 +0.25% 465.tonto 23.1000 23.3000 +0.86% 470.lbm 55.3000 55.6000 +0.54% 481.wrf 40.8000 40.8000 +0% 482.sphinx3 47.8000 47.9000 +0.20% HSW, 64 bits, o2 Test Previous Current Ratio(%) 400.perlbench 39.7000 39.7000 +0% 401.bzip2 25.1000 25.1000 +0% 403.gcc 33.7000 33.7000 +0% 429.mcf 40.1000 39.9000 -0.49% 445.gobmk 26.5000 26.4000 -0.37% 456.hmmer 24.8000 24.8000 +0% 458.sjeng 28.4000 28.5000 +0.35% 462.libquantum 74.4000 74.4000 +0% 464.h264ref 50.1000 50.3000 +0.39% 471.omnetpp 22.6000 22.5000 -0.44% 473.astar 20.7000 21.0000 +1.44% 483.xalancbmk 37.0000 37.4000 +1.08% 410.bwaves 60.1000 60.1000 +0% 416.gamess 35.5000 35.4000 -0.28% 433.milc 29.9000 29.8000 -0.33% 434.zeusmp 34.8000 34.6000 -0.57% 435.gromacs 27.4000 27.5000 +0.36% 436.cactusADM 32.3000 33.8000 +4.64% 437.leslie3d 32.6000 32.6000 +0% 444.namd 26.9000 26.9000 +0% 447.dealII 45.2000 45.1000 -0.22% 450.soplex 42.5000 42.6000 +0.23% 453.povray 45.9000 46.1000 +0.43% 454.calculix 12.9000 12.9000 +0% 459.GemsFDTD 38.6000 38.7000 +0.25% 465.tonto 23.7000 23.8000 +0.42% 470.lbm 56.7000 56.7000 +0% 481.wrf 28.9000 28.9000 +0% 482.sphinx3 43.9000 43.8000 -0.22% -- Thanks, K
