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Date: Tue, 23 Mar 2010 14:22:13 -0500 From: Robin Holt <holt@....com> To: Anton Starikov <ant.starikov@...il.com> Cc: Andrew Morton <akpm@...ux-foundation.org>, Ingo Molnar <mingo@...e.hu>, Linus Torvalds <torvalds@...ux-foundation.org>, linux-mm@...ck.org, linux-kernel@...r.kernel.org, bugzilla-daemon@...zilla.kernel.org, bugme-daemon@...zilla.kernel.org, Peter Zijlstra <a.p.zijlstra@...llo.nl> Subject: Re: [Bugme-new] [Bug 15618] New: 2.6.18->2.6.32->2.6.33 huge regression in performance On Tue, Mar 23, 2010 at 07:25:43PM +0100, Anton Starikov wrote: > On Mar 23, 2010, at 7:21 PM, Andrew Morton wrote: > >> I will apply this commits to 2.6.32, I afraid current OFED (which I need also) will not work on 2.6.33+. > >> > > > > You should be able to simply set CONFIG_RWSEM_GENERIC_SPINLOCK=n, > > CONFIG_RWSEM_XCHGADD_ALGORITHM=y by hand, as I mentioned earlier? > > Hm. I tried, but when I do "make oldconfig", then it gets rewritten, so I assume that it conflicts with some other setting from default fedora kernel config. trying to figure out which one exactly. Have you tracked this down yet? I just got the patches applied against an older kernel and am running into the same issue. Thanks, Robin -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.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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