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Message-Id: <200705222104.20580.kernel@kolivas.org> Date: Tue, 22 May 2007 21:04:20 +1000 From: Con Kolivas <kernel@...ivas.org> To: Ingo Molnar <mingo@...e.hu> Cc: Antonino Ingargiola <tritemio@...il.com>, Nick Piggin <nickpiggin@...oo.com.au>, Ray Lee <ray-lk@...rabbit.org>, ck list <ck@....kolivas.org>, Andrew Morton <akpm@...ux-foundation.org>, linux-kernel@...r.kernel.org, linux-mm@...ck.org Subject: Re: [PATCH] mm: swap prefetch improvements On Tuesday 22 May 2007 20:57, Ingo Molnar wrote: > * Con Kolivas <kernel@...ivas.org> 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? 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. -- -ck - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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