From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from psmtp.com (na3sys010amx189.postini.com [74.125.245.189]) by kanga.kvack.org (Postfix) with SMTP id 19F7A6B13F1 for ; Fri, 10 Feb 2012 07:36:44 -0500 (EST) Received: by wera13 with SMTP id a13so2538144wer.14 for ; Fri, 10 Feb 2012 04:36:42 -0800 (PST) MIME-Version: 1.0 In-Reply-To: <4F33D2F1.5000606@redhat.com> References: <201202041109.53003.toralf.foerster@gmx.de> <201202051107.26634.toralf.foerster@gmx.de> <201202080956.18727.toralf.foerster@gmx.de> <20120208115244.GA24959@sig21.net> <20120209113606.GA8054@sig21.net> <20120209132155.GA15147@sig21.net> <20120209135407.GA15492@sig21.net> <4F33D2F1.5000606@redhat.com> Date: Fri, 10 Feb 2012 20:36:42 +0800 Message-ID: Subject: Re: swap storm since kernel 3.2.x From: Hillf Danton Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable Sender: owner-linux-mm@kvack.org List-ID: To: Rik van Riel Cc: Johannes Stezenbach , =?UTF-8?Q?Toralf_F=C3=B6rster?= , linux-kernel@vger.kernel.org, linux-mm@kvack.org On Thu, Feb 9, 2012 at 10:06 PM, Rik van Riel wrote: > On 02/09/2012 08:54 AM, Johannes Stezenbach wrote: >> >> On Thu, Feb 09, 2012 at 02:21:55PM +0100, Johannes Stezenbach wrote: >>> >>> it looks good. =C2=A0Neither do I get the huge debug_objects_cache >>> nor does it swap, after running a crosstool-ng toolchain build. >>> Well, last time I also had one kvm -m 1G instance running. =C2=A0I'll >>> try if that triggers the issue. =C2=A0So far: >> >> >> The kvm produced a bunch of page allocation failures >> on the host: > > >> (repeats a few times) >> >> I guess that is expected with your patch? > > > That is indeed why my patch series was significantly larger > than Hillf's little test patch :) > Yes, Johannes did show that kswapd running purely in single mode, without helps from compaction or lumpy, could not meet all requests in VM core. Thank you all Hillf -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@kvack.org. For more info on Linux MM, see: http://www.linux-mm.org/ . Fight unfair telecom internet charges in Canada: sign http://stopthemeter.ca/ Don't email: email@kvack.org