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Message-Id: <20110324164307.CC91.A69D9226@jp.fujitsu.com> Date: Thu, 24 Mar 2011 16:43:15 +0900 (JST) From: KOSAKI Motohiro <kosaki.motohiro@...fujitsu.com> To: Minchan Kim <minchan.kim@...il.com> Cc: kosaki.motohiro@...fujitsu.com, linux-kernel@...r.kernel.org, Andrew Morton <akpm@...ux-foundation.org>, David Rientjes <rientjes@...gle.com>, Linus Torvalds <torvalds@...ux-foundation.org>, Rik van Riel <riel@...hat.com>, Oleg Nesterov <oleg@...hat.com>, linux-mm <linux-mm@...ck.org>, Andrey Vagin <avagin@...nvz.org>, Hugh Dickins <hughd@...gle.com>, KAMEZAWA Hiroyuki <kamezawa.hiroyu@...fujitsu.com>, Nick Piggin <npiggin@...nel.dk>, Johannes Weiner <hannes@...xchg.org> Subject: Re: [PATCH 1/5] vmscan: remove all_unreclaimable check from direct reclaim path completely > On Thu, Mar 24, 2011 at 4:28 PM, KOSAKI Motohiro > <kosaki.motohiro@...fujitsu.com> wrote: > >> For example, In 4G desktop system. > >> 32M full scanning and fail to reclaim a page. > >> It's under 1% coverage. > > > > ?? I'm sorry. I haven't catch it. > > Where 32M come from? > > (1<<12) * 4K + (1<<11) + 4K + .. (1 << 0) + 4K in shrink_zones. (lru-pages>>12) + (lru-pages>>11) + (lru-pages>>10) ... =~ 2 * lru-page ? -- 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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