http://gcc.gnu.org/bugzilla/show_bug.cgi?id=48702
--- Comment #25 from Richard Guenther <rguenth at gcc dot gnu.org> 2011-05-26
10:01:33 UTC ---
I have benchmarked SPEC2k6 on the 4.6 branch with the patch (and required
backports) with -O3 -ffast-math -funroll-loops, Base is unpatched, Peak
is patched. Average of three runs on a Intel(R) Core(TM) i7 CPU X 980 @
3.33GHz, the noise in the tests is +-1s. So from a performance point
the patch doesn't seem to have problems.
Estimated Estimated
Base Base Base Peak Peak Peak
Benchmarks Ref. Run Time Ratio Ref. Run Time Ratio
-------------- ------ --------- --------- ------ --------- ---------
400.perlbench 9770 334 29.2 * 9770 337 29.0 *
401.bzip2 9650 467 20.7 * 9650 459 21.0 *
403.gcc 8050 289 27.9 * 8050 289 27.8 *
429.mcf 9120 302 30.2 * 9120 304 30.0 *
445.gobmk 10490 413 25.4 * 10490 413 25.4 *
456.hmmer 9330 375 24.9 * 9330 374 24.9 *
458.sjeng 12100 446 27.1 * 12100 446 27.1 *
462.libquantum 20720 332 62.4 * 20720 332 62.4 *
464.h264ref 22130 540 41.0 * 22130 540 41.0 *
471.omnetpp 6250 300 20.9 * 6250 305 20.5 *
473.astar 7020 373 18.8 * 7020 373 18.8 *
483.xalancbmk 6900 225 30.7 * 6900 226 30.5 *
Est. SPECint_base2006 28.3
Est. SPECint2006 28.3
Estimated Estimated
Base Base Base Peak Peak Peak
Benchmarks Ref. Run Time Ratio Ref. Run Time Ratio
-------------- ------ --------- --------- ------ --------- ---------
410.bwaves 13590 347 39.2 * 13590 347 39.2 *
416.gamess 19580 740 26.5 * 19580 738 26.5 *
433.milc 9180 382 24.0 * 9180 381 24.1 *
434.zeusmp 9100 336 27.1 * 9100 336 27.1 *
435.gromacs 7140 318 22.4 * 7140 318 22.4 *
436.cactusADM 11950 422 28.3 * 11950 426 28.1 *
437.leslie3d 9400 316 29.8 * 9400 315 29.9 *
444.namd 8020 397 20.2 * 8020 398 20.2 *
447.dealII 11440 315 36.3 * 11440 314 36.5 *
450.soplex 8340 220 37.9 * 8340 220 37.9 *
453.povray 5320 186 28.6 * 5320 187 28.4 *
454.calculix 8250 365 22.6 * 8250 365 22.6 *
459.GemsFDTD 10610 344 30.9 * 10610 340 31.2 *
465.tonto 9840 380 25.9 * 9840 378 26.0 *
470.lbm 13740 254 54.0 * 13740 255 53.9 *
481.wrf 11170 351 31.8 * 11170 352 31.8 *
482.sphinx3 19490 483 40.4 * 19490 485 40.2 *
Est. SPECfp_base2006 30.0
Est. SPECfp2006 30.0
