From mboxrd@z Thu Jan 1 00:00:00 1970 Date: Tue, 31 Jul 2007 12:46:42 -0700 From: Andrew Morton Subject: Re: [rfc] [patch] mm: zone_reclaim fix for pseudo file systems Message-Id: <20070731124642.c43012cd.akpm@linux-foundation.org> In-Reply-To: References: <20070727232753.GA10311@localdomain> <20070730132314.f6c8b4e1.akpm@linux-foundation.org> <20070731000138.GA32468@localdomain> <20070730172007.ddf7bdee.akpm@linux-foundation.org> <20070731015647.GC32468@localdomain> <20070730192721.eb220a9d.akpm@linux-foundation.org> <20070730214756.c4211678.akpm@linux-foundation.org> <20070730221736.ccf67c86.akpm@linux-foundation.org> <20070730225809.ed0a95ff.akpm@linux-foundation.org> <20070730231806.da72a7ec.akpm@linux-foundation.org> Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: owner-linux-mm@kvack.org Return-Path: To: Christoph Lameter Cc: Ravikiran G Thirumalai , linux-mm@kvack.org, shai@scalex86.org List-ID: On Tue, 31 Jul 2007 12:35:03 -0700 (PDT) Christoph Lameter wrote: > On Mon, 30 Jul 2007, Andrew Morton wrote: > > > On Mon, 30 Jul 2007 23:09:09 -0700 (PDT) Christoph Lameter wrote: > > > > > > OK, plausible. But where's the *proof*? We probably already have > > > > sufficient statistics to be able to prove this. > > > > > > Rik has shown this repeatedly. > > > > url? > > F.e. > > http://linux-mm.org/ProblemWorkloads > > http://lwn.net/Articles/224850/ They're different from Kiran's problem. Not specifically ramfs and zone-reclaim isn't (obviously) involved. Yes, the solution is probably the same one, but it'd be sad to "fix" Kiran's problem via finer-grained zone accounting while leaving an undiscovered bug behind. If we're going further down that path we should aim at removing the all_unreclaimable logic completely. -- 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/ . Don't email: email@kvack.org