From: Wu Fengguang <fengguang.wu@intel.com>
To: <linux-fsdevel@vger.kernel.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Jan Kara <jack@suse.cz>
Cc: Christoph Hellwig <hch@lst.de>
Cc: Dave Chinner <david@fromorbit.com>
Cc: Greg Thelen <gthelen@google.com>
Cc: Minchan Kim <minchan.kim@gmail.com>
Cc: Vivek Goyal <vgoyal@redhat.com>
Cc: Andrea Righi <arighi@develer.com>
Cc: linux-mm <linux-mm@kvack.org>
Cc: LKML <linux-kernel@vger.kernel.org>
Cc: Wu Fengguang <fengguang.wu@intel.com>
Subject: [PATCH 00/11] IO-less dirty throttling v12
Date: Mon, 03 Oct 2011 21:42:28 +0800 [thread overview]
Message-ID: <20111003134228.090592370@intel.com> (raw)
Hi,
This is the minimal IO-less balance_dirty_pages() changes that are expected to
be regression free (well, except for NFS).
git://github.com/fengguang/linux.git dirty-throttling-v12
Tests results will be posted in a separate email.
Changes since v11:
- improve bdi reserve area parameters (based on test results)
- drop bdi underrun flag
- drop aux bdi control line
- make bdi->dirty_ratelimit more stable
Changes since v10:
- complete the renames
- add protections for IO queue underrun
- pause time reduction
- bdi reserve area
- bdi underrun flag
- more accurate task dirty accounting for
- sub-page writes
- FS re-dirties
- short lived tasks
Changes since v9:
- a lot of renames and comment/changelog rework, again
- seperate out the dirty_ratelimit update policy (as patch 04)
- add think time compensation
- add 3 trace events
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, Vivek, Andrea and Jan for the careful reviews!
shortlog:
Wu Fengguang (11):
writeback: account per-bdi accumulated dirtied pages
writeback: dirty position control
writeback: add bg_threshold parameter to __bdi_update_bandwidth()
writeback: dirty rate control
writeback: stabilize bdi->dirty_ratelimit
writeback: per task dirty rate limit
writeback: IO-less balance_dirty_pages()
writeback: limit max dirty pause time
writeback: control dirty pause time
writeback: dirty position control - bdi reserve area
writeback: per-bdi background threshold
diffstat:
fs/fs-writeback.c | 19 +-
include/linux/backing-dev.h | 11 +
include/linux/sched.h | 7 +
include/linux/writeback.h | 1 +
include/trace/events/writeback.h | 24 --
kernel/fork.c | 3 +
mm/backing-dev.c | 4 +
mm/page-writeback.c | 678 +++++++++++++++++++++++++++++---------
8 files changed, 566 insertions(+), 181 deletions(-)
Thanks,
Fengguang
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next reply other threads:[~2011-10-03 13:42 UTC|newest]
Thread overview: 29+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-10-03 13:42 Wu Fengguang [this message]
2011-10-03 13:42 ` [PATCH 01/11] writeback: account per-bdi accumulated dirtied pages Wu Fengguang
2011-10-03 13:42 ` [PATCH 02/11] writeback: dirty position control Wu Fengguang
2011-10-03 13:42 ` [PATCH 03/11] writeback: add bg_threshold parameter to __bdi_update_bandwidth() Wu Fengguang
2011-10-03 13:42 ` [PATCH 04/11] writeback: dirty rate control Wu Fengguang
2011-10-03 13:42 ` [PATCH 05/11] writeback: stabilize bdi->dirty_ratelimit Wu Fengguang
2011-10-03 13:42 ` [PATCH 06/11] writeback: per task dirty rate limit Wu Fengguang
2011-10-03 13:42 ` [PATCH 07/11] writeback: IO-less balance_dirty_pages() Wu Fengguang
2011-10-03 13:42 ` [PATCH 08/11] writeback: limit max dirty pause time Wu Fengguang
2011-10-03 13:42 ` [PATCH 09/11] writeback: control " Wu Fengguang
2011-10-03 13:42 ` [PATCH 10/11] writeback: dirty position control - bdi reserve area Wu Fengguang
2011-10-03 13:42 ` [PATCH 11/11] writeback: per-bdi background threshold Wu Fengguang
2011-10-03 13:59 ` [PATCH 00/11] IO-less dirty throttling v12 Wu Fengguang
2011-10-05 1:42 ` Wu Fengguang
2011-10-04 19:52 ` Vivek Goyal
2011-10-05 13:56 ` Wu Fengguang
2011-10-05 15:16 ` Andi Kleen
2011-10-10 12:14 ` Peter Zijlstra
2011-10-10 13:07 ` Wu Fengguang
2011-10-10 13:10 ` [RFC][PATCH 1/2] nfs: writeback pages wait queue Wu Fengguang
2011-10-10 13:11 ` [RFC][PATCH 2/2] nfs: scale writeback threshold proportional to dirty threshold Wu Fengguang
2011-10-18 8:53 ` Wu Fengguang
2011-10-18 8:59 ` Wu Fengguang
2011-10-20 2:49 ` Wu Fengguang
2011-10-18 8:51 ` [RFC][PATCH 1/2] nfs: writeback pages wait queue Wu Fengguang
2011-10-20 3:59 ` Wu Fengguang
2011-10-10 14:28 ` [PATCH 00/11] IO-less dirty throttling v12 Wu Fengguang
2011-10-17 3:03 ` Wu Fengguang
2011-10-20 3:39 ` Wu Fengguang
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