On Sat, 14 Aug 2021, Jan Hubicka wrote: > Hi, > runs finished for cheap vectorization model. I am running very cheap > too. > > https://lnt.opensuse.org/db_default/v4/SPEC/latest_runs_report?younger_in_days=14&older_in_days=0&all_changes=on&min_percentage_change=0.02&revisions=e54acea9e5a821448af97c66e94a1e4c4f977d5d%2Ce87209a1269622017bf3d98bf71502dcb0f893aa%2C73474527aaa24d9236aca074c5494a07f40ce058&include_user_branches=on > > compares default -O2 (base), loop vectorize, slp vectorize. > Put "O2" to machine name. > > Overall scores are: > > kaby.spec2006.O2_generic > Test loop alp > SPEC/SPEC2006/FP/total 8.16% 0.19% > SPEC/SPEC2006/total 4.96% 0.38% > SPEC/SPEC2006/INT/total 36.595 0.58% 0.65% > > kaby.spec2006.O2_generic_lto > SPEC/SPEC2006/FP/total 9.06% -0.36% > SPEC/SPEC2006/total 5.32% ~ > SPEC/SPEC2006/INT/total 0.24% 0.27% > > kaby.spec2017.O2_generic > SPEC/SPEC2017/INT/total 6.54% -1.15% > SPEC/SPEC2017/total 5.66% -0.17% > SPEC/SPEC2017/FP/total 5.00% 0.59% > > kaby.spec2017.O2_generic_lto > SPEC/SPEC2017/INT/total 6.62% -0.12% > SPEC/SPEC2017/total 5.69% -0.14% > SPEC/SPEC2017/FP/total 4.99% -0.16% > > zenith.spec2006.O2_generic > SPEC/SPEC2006/FP/total 10.23% -0.35% > SPEC/SPEC2006/total 6.01% -0.48% > SPEC/SPEC2006/INT/total 0.31% -0.66% > > zenith.spec2006.O2_generic_lto > SPEC/SPEC2006/FP/total 12.03% 0.82% > SPEC/SPEC2006/total 6.90% 0.44% > SPEC/SPEC2006/INT/total ~ -0.11% > > zenith.spec2017.O2_generic > SPEC/SPEC2017/INT/total 7.46% -0.37% > SPEC/SPEC2017/total 6.81% 0.48% > SPEC/SPEC2017/FP/total 6.31% 1.15% > > zenith.spec2017.O2_generic_lto > SPEC/SPEC2017/INT/total 7.81% -0.22% > SPEC/SPEC2017/total 7.07% 0.44% > SPEC/SPEC2017/FP/total 6.50% 0.94% > > So loop vectorize is consistent win, slp is mostly neutral. > > Code size growth is too large for -O2 for loop vectorize. SLP vectorize > seems slight size win overall. > > Noteworthy regressions caused by slp are: > 5-6%: xz (kaby, lto), milc (zenith), astar (zenith) > 4-5%: xalancbmk (kaby), blender (kaby) > 3-4%: xz (kaby, nolto), dealII (zenith) > 2-3%: povray (kaby), astar (kaby), perlbench (kaby), sjeng (zenith), > xz(zenith) > > We get 10% improvement on imagemagick (kaby), 17.5% (zenith), > imagematick 6.99% (zenith) > > https://lnt.opensuse.org/db_default/v4/CPP/latest_runs_report?younger_in_days=14&older_in_days=0&all_changes=on&min_percentage_change=0.02&revisions=e54acea9e5a821448af97c66e94a1e4c4f977d5d%2Ce87209a1269622017bf3d98bf71502dcb0f893aa%2C73474527aaa24d9236aca074c5494a07f40ce058&include_user_branches=on > > Is for C++/polyhedron benchmarks. It shows several interesting > regressions in polyhedron and tsvc for loop vectorization (over 100%) > and also some for slp. Shall I try to search for bugzilla for these? Yeah, even more so if they reproduce with -O3. Richard.
