Messages in this thread | | | From | Con Kolivas <> | Subject | Re: sched domains kernbench improvements | Date | Sat, 28 Feb 2004 23:27:15 +1100 |
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On Sat, 28 Feb 2004 22:23, Nick Piggin wrote: > Con Kolivas wrote: > >Will this affect the SCHED_SMT performance and should I do a round of > > benchies with this enabled? > > It will as far as balancing between physical CPUs, yes. It probably > doesn't make quite a big difference because it is less of a problem > if one sibling goes idle than if one CPU (in the 8-way) goes idle). > > But if you could do a round with SCHED_SMT enabled it would be very > nice of you ;)
One wonders sometimes why one asks a question if one already knows the answer ;-)
better on half load
sched_SMT: Average Half Load Run: Elapsed Time 113.008 User Time 742.786 System Time 90.65 Percent CPU 738 Context Switches 28062.6 Sleeps 24571.8
Average Optimum Load Run: Elapsed Time 79.278 User Time 1007.69 System Time 107.388 Percent CPU 1407 Context Switches 33355 Sleeps 32720
Average Maximum Load Run: Elapsed Time 80.33 User Time 1009.89 System Time 121.518 Percent CPU 1408.4 Context Switches 31802.4 Sleeps 22905
sched_SMT-lessidle: Average Half Load Run: Elapsed Time 112.084 User Time 722.972 System Time 91.946 Percent CPU 727.2 Context Switches 13016.6 Sleeps 24991.2
Average Optimum Load Run: Elapsed Time 79.07 User Time 1007.33 System Time 107.482 Percent CPU 1410.2 Context Switches 33007.2 Sleeps 32159.6
Average Maximum Load Run: Elapsed Time 80.926 User Time 1010.12 System Time 121.472 Percent CPU 1399 Context Switches 31268.4 Sleeps 22479
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