From mboxrd@z Thu Jan 1 00:00:00 1970 Date: Tue, 22 May 2007 13:12:30 +0200 From: Ingo Molnar Subject: Re: [PATCH] mm: swap prefetch improvements Message-ID: <20070522111230.GA15616@elte.hu> References: <20070430162007.ad46e153.akpm@linux-foundation.org> <200705222054.46488.kernel@kolivas.org> <20070522105710.GA12833@elte.hu> <200705222104.20580.kernel@kolivas.org> <20070522111104.GA14950@elte.hu> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20070522111104.GA14950@elte.hu> Sender: owner-linux-mm@kvack.org Return-Path: To: Con Kolivas Cc: Antonino Ingargiola , Nick Piggin , Ray Lee , ck list , Andrew Morton , linux-kernel@vger.kernel.org, linux-mm@kvack.org List-ID: * Con Kolivas wrote: > > hm, what do you call 'journal writeout' here that would be happening > > on my system? > > Not really sure what you have in terms of fs, but here even with > nothing going on, ext3 writes to disk every 5 seconds with kjournald. i have ext3, but it doesnt do that on my box. Also, i would have noticed any IO activity in the 'swap prefetch off' case. When i said completely idle, i really meant it ;-) so swap-prefetch stops for 5 seconds for no apparent reason. Ingo -- 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