From mboxrd@z Thu Jan 1 00:00:00 1970 Subject: Re: [patch 1/1] vmscan: give referenced, active and unmapped pages a second trip around the LRU From: Peter Zijlstra In-Reply-To: <20070525014301.ed817a91.akpm@linux-foundation.org> References: <200705242357.l4ONvw49006681@shell0.pdx.osdl.net> <1180076565.7348.14.camel@twins> <20070525001812.9dfc972e.akpm@linux-foundation.org> <1180077810.7348.20.camel@twins> <20070525002829.19deb888.akpm@linux-foundation.org> <1180078590.7348.27.camel@twins> <20070525004808.84ae5cf3.akpm@linux-foundation.org> <1180079479.7348.33.camel@twins> <20070525010112.2c5754ac.akpm@linux-foundation.org> <1180082124.7348.55.camel@twins> <20070525014301.ed817a91.akpm@linux-foundation.org> Content-Type: text/plain Date: Fri, 25 May 2007 12:13:08 +0200 Message-Id: <1180087988.7348.59.camel@twins> Mime-Version: 1.0 Content-Transfer-Encoding: 7bit Sender: owner-linux-mm@kvack.org Return-Path: To: Andrew Morton Cc: linux-mm@kvack.org, mbligh@mbligh.org, riel@redhat.com List-ID: On Fri, 2007-05-25 at 01:43 -0700, Andrew Morton wrote: > Well yeah. I look at this patch and I can say with confidence that it will > increase our tendency to swap and that it'll cause reclaim to scan more > pages and that it'll increase the ease with which we declare oom. > > otoh it takes us closer to the designed 4-stage page aging. But does it > actually make the kernel better? Unknown and unknowable. Ah, here I see my mistake and your confusion; I actually thought the design mattered :-) -- 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