From mboxrd@z Thu Jan 1 00:00:00 1970 From: Wu Fengguang Subject: [PATCH 0/5] IO-less dirty throttling v9 Date: Tue, 16 Aug 2011 10:20:06 +0800 Message-ID: <20110816022006.348714319@intel.com> Cc: Peter Zijlstra To: Return-path: Received: from mga14.intel.com ([143.182.124.37]:51679 "EHLO mga14.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753182Ab1HPDaZ (ORCPT ); Mon, 15 Aug 2011 23:30:25 -0400 cc: Andrew Morton CC: Jan Kara CC: Christoph Hellwig CC: Dave Chinner CC: Greg Thelen CC: Minchan Kim CC: Vivek Goyal CC: Andrea Righi Cc: linux-mm Cc: LKML Cc: Wu Fengguang Sender: linux-fsdevel-owner@vger.kernel.org List-ID: Hi, The core bits of the IO-less balance_dirty_pages(). git://git.kernel.org/pub/scm/linux/kernel/git/wfg/writeback.git dirty-throttling-v9 Changes since v8: - a lot of renames and comment/changelog rework - use 3rd order polynomial as the global control line (Peter) - stabilize dirty_ratelimit by decreasing update step size on small errors - limit per-CPU dirtied pages to avoid dirty pages run away on 1k+ tasks (Peter) Thanks a lot to Peter and Andrea, Vivek for the careful reviews! shortlog: Wu Fengguang (5): writeback: account per-bdi accumulated dirtied pages writeback: dirty position control writeback: dirty rate control writeback: per task dirty rate limit writeback: IO-less balance_dirty_pages() The last 4 patches are one single logical change, but splitted here to make it easier to review the different parts of the algorithm. diffstat: fs/fs-writeback.c | 2 include/linux/backing-dev.h | 8 include/linux/sched.h | 7 include/linux/writeback.h | 1 include/trace/events/writeback.h | 24 - kernel/fork.c | 3 mm/backing-dev.c | 3 mm/page-writeback.c | 544 ++++++++++++++++++++--------- 8 files changed, 414 insertions(+), 178 deletions(-) Thanks, Fengguang