Date: Sat, 24 Dec 2011 13:00:34 +0200 From: Daniel Kalchev <daniel@digsys.bg> To: Adrian Chadd <adrian@freebsd.org> Cc: freebsd-stable@freebsd.org, Andriy Gapon <avg@freebsd.org>, Steve Kargl <sgk@troutmask.apl.washington.edu> Subject: Re: SCHED_ULE should not be the default Message-ID: <7C00F287-AE0B-4621-8428-E6A6E3BDA084@digsys.bg> In-Reply-To: <CAJ-Vmon69r-341aMutBAHT_VCMkM9afzu=4sBd7s7zqFiK%2BEVA@mail.gmail.com> References: <4EE1EAFE.3070408@m5p.com> <CAJ-FndBSOS3hKYqmPnVkoMhPmowBBqy9-%2BeJJEMTdoVjdMTEdw@mail.gmail.com> <20111215215554.GA87606@troutmask.apl.washington.edu> <CAJ-FndD0vFWUnRPxz6CTR5JBaEaY3gh9y7-Dy6Gds69_aRgfpg@mail.gmail.com> <20111222005250.GA23115@troutmask.apl.washington.edu> <20111222103145.GA42457@onelab2.iet.unipi.it> <20111222184531.GA36084@troutmask.apl.washington.edu> <4EF37E7B.4020505@FreeBSD.org> <20111222194740.GA36796@troutmask.apl.washington.edu> <CAJ-VmokeyDrKb-yQkzTm8tnOYcRm603hz%2B6nen10F3zFQVmCEQ@mail.gmail.com> <20111223191146.GA56232@troutmask.apl.washington.edu> <CAJ-Vmon69r-341aMutBAHT_VCMkM9afzu=4sBd7s7zqFiK%2BEVA@mail.gmail.com>
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On Dec 24, 2011, at 12:49 AM, Adrian Chadd wrote: > Do you not have access to anything with 8 CPUs in it? It'd be nice to > get clarification that this indeed was fixed. I offered to do tests on 4x8 core Opteron system (32 cores total), but = was discouraged that contention would be too much and results = meaningless -- yet, such systems will be more and more popular. > Does ULE care (much) if the nodes are hyperthreading or real cores? > Would that play a part in what it tries to schedule/spread? I could also run the tests on 2x4x2 cores Xeon, which uses hyper = threading, 8 real or 16 virtual cores in total. I can torture both systems (actually two pairs) for a week or two. But I = may not have enough time to prepare the core/setup so any advice is = greatly appreciated. Be more descriptive :) Daniel=
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