Messages in this thread | | | Date | Thu, 6 Jul 2006 22:26:32 -0700 | From | Paul Jackson <> | Subject | Re: [PATCH 2.6.16-mm1 2/2] sched_domains: Allocate sched_groups dynamically |
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Suresh wrote: > It is quite possible that the kernel you are testing doesn't have multi-core > scheduler domain. If so, then you may not run into this issue.
Aha - we have a winner.
CONFIG_SCHED_MC was not enabled in this kernel.
Now what I see matches what it should.
On a Hyper-Thread (but not Multi-Core) x86_64 system that I tested with CONFIG_SCHED_MC enabled, your patch was required to keep single-cpu cpu_exclusive cpusets from instantly locking up the system.
On a Multi-Core (but not Hyper-Thread) IA64 Montecito system that did -not- have CONFIG_SCHED_MC enabled, there is no such problem with single-cpu cpu_exclusive cpusets in the first place. It worked ok, even without the patch.
Thank-you.
-- I won't rest till it's the best ... Programmer, Linux Scalability Paul Jackson <pj@sgi.com> 1.925.600.0401 - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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