Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1758768Ab0HEGLU (ORCPT ); Thu, 5 Aug 2010 02:11:20 -0400 Received: from fgwmail5.fujitsu.co.jp ([192.51.44.35]:51023 "EHLO fgwmail5.fujitsu.co.jp" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1757750Ab0HEGLQ (ORCPT ); Thu, 5 Aug 2010 02:11:16 -0400 X-SecurityPolicyCheck-FJ: OK by FujitsuOutboundMailChecker v1.3.1 From: KOSAKI Motohiro To: LKML , linux-mm , Andrew Morton , Johannes Weiner , Mel Gorman , Wu Fengguang , Minchan Kim , Rik van Riel Subject: [RFC][PATCH 0/7] low latency synchrounous lumpy reclaim Cc: kosaki.motohiro@jp.fujitsu.com Message-Id: <20100805150624.31B7.A69D9226@jp.fujitsu.com> MIME-Version: 1.0 Content-Type: text/plain; charset="US-ASCII" Content-Transfer-Encoding: 7bit X-Mailer: Becky! ver. 2.50.07 [ja] Date: Thu, 5 Aug 2010 15:11:13 +0900 (JST) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1159 Lines: 32 If slow usb storage is connected and run plenty io operation, lumpy reclaim often stall in shrink_inactive_list(). This patch series try to solve this issue. At least, This works fine on my desktop and usb stick environment :-) This patch is still RFC. comment, reviewing and testing are welcome! Wu Fengguang (1): vmscan: raise the bar to PAGEOUT_IO_SYNC stalls KOSAKI Motohiro (6): vmscan: synchronous lumpy reclaim don't call congestion_wait() vmscan: synchrounous lumpy reclaim use lock_page() instead trylock_page() vmscan: narrowing synchrounous lumply reclaim condition vmscan: kill dead code in shrink_inactive_list() vmscan: remove PF_SWAPWRITE from __zone_reclaim() vmscan: isolated_lru_pages() stop neighbor search if neighbor can't be isolated mm/vmscan.c | 211 ++++++++++++++++++++++++++++++++++++++-------------------- 1 files changed, 138 insertions(+), 73 deletions(-) -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/