Messages in this thread | | | Date | Tue, 30 Mar 2004 09:48:11 +0200 | From | Andi Kleen <> | Subject | Re: [Lse-tech] [patch] sched-domain cleanups, sched-2.6.5-rc2-mm2-A3 |
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On Tue, 30 Mar 2004 09:15:19 +0200 Ingo Molnar <mingo@elte.hu> wrote:
> > * Andi Kleen <ak@suse.de> wrote: > > > > Andi, could you please try the patch below - this will test whether this > > > has to do with the rate of balancing between NUMA nodes. The patch > > > itself is not correct (it way overbalances on NUMA), but it tests the > > > theory. > > > > This works much better, but wildly varying (my tests go from 2.8xCPU > > to ~3.8x CPU for 4 CPUs. 2,3 CPU cases are ok). A bit more consistent > > results would be better though. > > ok, could you try min_interval,max_interval and busy_factor all with a > value as 4, in sched.h's SD_NODE_INIT template? (again, only for testing > purposes.)
I kept the old patch and made these changes. The results are much more consistent now 3+x CPU. I still get varyations of ~2GB/s, but I had this with older kernels too.
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