From mboxrd@z Thu Jan 1 00:00:00 1970 Date: Tue, 22 May 2007 12:57:10 +0200 From: Ingo Molnar Subject: Re: [PATCH] mm: swap prefetch improvements Message-ID: <20070522105710.GA12833@elte.hu> References: <20070430162007.ad46e153.akpm@linux-foundation.org> <200705222037.54741.kernel@kolivas.org> <20070522104648.GA10622@elte.hu> <200705222054.46488.kernel@kolivas.org> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <200705222054.46488.kernel@kolivas.org> 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: > On Tuesday 22 May 2007 20:46, Ingo Molnar wrote: > > It clearly should not consider 'itself' as IO activity. This > > suggests some bug in the 'detect activity' mechanism, agreed? I'm > > wondering whether you are seeing the same problem, or is all > > swap-prefetch IO on your system continuous until it's done [or some > > other IO comes inbetween]? > > When nothing else is happening anywhere on the system it reads in > bursts and goes to sleep during journal writeout. hm, what do you call 'journal writeout' here that would be happening on my system? 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