From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail172.messagelabs.com (mail172.messagelabs.com [216.82.254.3]) by kanga.kvack.org (Postfix) with SMTP id AD4E88D003B for ; Wed, 20 Apr 2011 04:46:13 -0400 (EDT) Message-Id: <20110420080336.441157866@intel.com> Date: Wed, 20 Apr 2011 16:03:36 +0800 From: Wu Fengguang Subject: [PATCH 0/6] writeback: moving expire targets for background/kupdate works v2 Sender: owner-linux-mm@kvack.org List-ID: To: Andrew Morton Cc: Jan Kara , Mel Gorman , Dave Chinner , Itaru Kitayama , Minchan Kim , Linux Memory Management List , linux-fsdevel@vger.kernel.org, Wu Fengguang , LKML Andrew, This aims to reduce possible pageout() calls by making the flusher concentrate a bit more on old/expired dirty inodes. Rationals and benchmark numbers are added in patches 05, 06. It runs fine on simple workloads over ext3/4, xfs, btrfs and NFS. code refactor [PATCH 1/6] writeback: pass writeback_control down to move_expired_inodes() loop condition fixes [PATCH 2/6] writeback: introduce writeback_control.inodes_cleaned [PATCH 3/6] writeback: try more writeback as long as something was written make dirty expire time a moving target [PATCH 4/6] writeback: the kupdate expire timestamp should be a moving target [PATCH 5/6] writeback: sync expired inodes first in background writeback consistent requeue policy it's not an integral part of this patchset, however do depends on patch 03 [PATCH 6/6] writeback: refill b_io iff empty Thanks, Fengguang -- 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/ . Fight unfair telecom internet charges in Canada: sign http://stopthemeter.ca/ Don't email: email@kvack.org