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Date: Tue, 27 Oct 2009 22:00:04 +0100 From: Frans Pop <elendil@...net.nl> To: Mel Gorman <mel@....ul.ie> Cc: David Rientjes <rientjes@...gle.com>, Andrew Morton <akpm@...ux-foundation.org>, stable <stable@...nel.org>, "Rafael J. Wysocki" <rjw@...k.pl>, David Miller <davem@...emloft.net>, reinette chatre <reinette.chatre@...el.com>, Kalle Valo <kalle.valo@....fi>, "John W. Linville" <linville@...driver.com>, Pekka Enberg <penberg@...helsinki.fi>, Bartlomiej Zolnierkiewicz <bzolnier@...il.com>, Karol Lewandowski <karol.k.lewandowski@...il.com>, netdev@...r.kernel.org, linux-kernel@...r.kernel.org, "linux-mm@...ck.org" <linux-mm@...ck.org> Subject: Re: [PATCH 2/2] page allocator: Direct reclaim should always obey watermarks On Saturday 17 October 2009, Frans Pop wrote: > On Saturday 17 October 2009, Mel Gorman wrote: > > Frans, you reported that both patches in combination reduced the > > number of failures. Was it in fact just the kswapd change that made > > the difference? > > I will retest both patches (as I already mailed you privately > yesterday), but not today. The improvement with the combination was > real, but I'm not sure which patch is the reason. I think the second, > but I need to verify. > > I've done another 30 boots or so today, mainly in the "akpm" merge, and > I've found new patterns that will help me nail down the regression. But > ATM I can't see straight anymore, so it will have to wait until > tomorrow. Again sorry for the delay, but I needed to retest these with various kernels as the results were inconclusive. AFAICT neither of the two patches makes a significant difference for my test case. Not sure if my initial test was broken or that it was just a case where the timings worked out favorably. Cheers, FJP -- 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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