From: Wu Fengguang <fengguang.wu@intel.com>
To: Andrew Morton <akpm@linux-foundation.org>
Cc: Jan Kara <jack@suse.cz>, Michael Rubin <mrubin@google.com>,
Peter Zijlstra <a.p.zijlstra@chello.nl>,
Wu Fengguang <fengguang.wu@intel.com>,
Christoph Hellwig <hch@lst.de>,
Trond Myklebust <Trond.Myklebust@netapp.com>,
Dave Chinner <david@fromorbit.com>, Theodore Ts'o <tytso@mit.edu>,
Chris Mason <chris.mason@oracle.com>, Mel Gorman <mel@csn.ul.ie>,
Rik van Riel <riel@redhat.com>,
KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>,
Greg Thelen <gthelen@google.com>,
Minchan Kim <minchan.kim@gmail.com>,
Vivek Goyal <vgoyal@redhat.com>,
Andrea Righi <arighi@develer.com>,
Balbir Singh <balbir@linux.vnet.ibm.com>,
linux-mm <linux-mm@kvack.org>,
linux-fsdevel@vger.kernel.org,
LKML <linux-kernel@vger.kernel.org>
Subject: [PATCH 02/12] writeback: account per-bdi accumulated dirtied pages
Date: Sat, 16 Apr 2011 21:25:48 +0800 [thread overview]
Message-ID: <20110416134332.667289668@intel.com> (raw)
In-Reply-To: 20110416132546.765212221@intel.com
[-- Attachment #1: writeback-bdi-dirtied.patch --]
[-- Type: text/plain, Size: 2414 bytes --]
Introduce the BDI_DIRTIED counter. It will be used for estimating the
bdi's dirty bandwidth.
CC: Jan Kara <jack@suse.cz>
CC: Michael Rubin <mrubin@google.com>
CC: Peter Zijlstra <a.p.zijlstra@chello.nl>
Signed-off-by: Wu Fengguang <fengguang.wu@intel.com>
---
include/linux/backing-dev.h | 1 +
mm/backing-dev.c | 2 ++
mm/page-writeback.c | 1 +
3 files changed, 4 insertions(+)
--- linux-next.orig/include/linux/backing-dev.h 2011-04-14 09:21:06.000000000 +0800
+++ linux-next/include/linux/backing-dev.h 2011-04-14 21:51:23.000000000 +0800
@@ -40,6 +40,7 @@ typedef int (congested_fn)(void *, int);
enum bdi_stat_item {
BDI_RECLAIMABLE,
BDI_WRITEBACK,
+ BDI_DIRTIED,
BDI_WRITTEN,
NR_BDI_STAT_ITEMS
};
--- linux-next.orig/mm/page-writeback.c 2011-04-14 09:21:06.000000000 +0800
+++ linux-next/mm/page-writeback.c 2011-04-14 21:51:23.000000000 +0800
@@ -1133,6 +1133,7 @@ void account_page_dirtied(struct page *p
__inc_zone_page_state(page, NR_FILE_DIRTY);
__inc_zone_page_state(page, NR_DIRTIED);
__inc_bdi_stat(mapping->backing_dev_info, BDI_RECLAIMABLE);
+ __inc_bdi_stat(mapping->backing_dev_info, BDI_DIRTIED);
task_dirty_inc(current);
task_io_account_write(PAGE_CACHE_SIZE);
}
--- linux-next.orig/mm/backing-dev.c 2011-04-14 09:21:06.000000000 +0800
+++ linux-next/mm/backing-dev.c 2011-04-14 21:51:23.000000000 +0800
@@ -86,6 +86,7 @@ static int bdi_debug_stats_show(struct s
"BdiDirtyThresh: %8lu kB\n"
"DirtyThresh: %8lu kB\n"
"BackgroundThresh: %8lu kB\n"
+ "BdiDirtied: %8lu kB\n"
"BdiWritten: %8lu kB\n"
"b_dirty: %8lu\n"
"b_io: %8lu\n"
@@ -95,6 +96,7 @@ static int bdi_debug_stats_show(struct s
(unsigned long) K(bdi_stat(bdi, BDI_WRITEBACK)),
(unsigned long) K(bdi_stat(bdi, BDI_RECLAIMABLE)),
K(bdi_thresh), K(dirty_thresh), K(background_thresh),
+ (unsigned long) K(bdi_stat(bdi, BDI_DIRTIED)),
(unsigned long) K(bdi_stat(bdi, BDI_WRITTEN)),
nr_dirty, nr_io, nr_more_io,
!list_empty(&bdi->bdi_list), bdi->state);
--
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next prev parent reply other threads:[~2011-04-16 14:03 UTC|newest]
Thread overview: 29+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-04-16 13:25 [PATCH 00/12] IO-less dirty throttling v7 Wu Fengguang
2011-04-16 13:25 ` [PATCH 01/12] writeback: account per-bdi accumulated written pages Wu Fengguang
2011-04-16 13:25 ` Wu Fengguang [this message]
2011-04-16 13:25 ` [PATCH 03/12] writeback: bdi write bandwidth estimation Wu Fengguang
2011-04-16 13:25 ` [PATCH 04/12] writeback: smoothed global/bdi dirty pages Wu Fengguang
2011-04-16 13:25 ` [PATCH 05/12] writeback: smoothed dirty threshold and limit Wu Fengguang
2011-04-16 13:25 ` [PATCH 06/12] writeback: enforce 1/4 gap between the dirty/background thresholds Wu Fengguang
2011-04-16 13:25 ` [PATCH 07/12] writeback: base throttle bandwidth and position ratio Wu Fengguang
2011-04-16 13:25 ` [PATCH 08/12] writeback: IO-less balance_dirty_pages() Wu Fengguang
2011-04-16 13:25 ` [PATCH 09/12] writeback: show bdi write bandwidth in debugfs Wu Fengguang
2011-04-16 13:25 ` [PATCH 10/12] writeback: trace dirty_ratelimit Wu Fengguang
2011-04-16 13:25 ` [PATCH 11/12] writeback: trace balance_dirty_pages Wu Fengguang
2011-04-16 13:25 ` [PATCH 12/12] writeback: trace global_dirty_state Wu Fengguang
2011-04-16 16:27 ` [PATCH 00/12] IO-less dirty throttling v7 Sedat Dilek
2011-04-17 1:44 ` Wu Fengguang
2011-04-17 3:18 ` Sedat Dilek
2011-04-17 4:10 ` Wu Fengguang
2011-04-17 4:46 ` Sedat Dilek
2011-04-17 6:46 ` Sedat Dilek
2011-04-18 0:13 ` Wu Fengguang
2011-04-18 6:57 ` Sedat Dilek
2011-04-18 8:18 ` Wu Fengguang
2011-04-18 10:22 ` Sedat Dilek
2011-04-17 7:31 ` Marco Stornelli
2011-04-17 9:30 ` Wu Fengguang
2011-04-17 17:44 ` Marco Stornelli
2011-04-17 23:31 ` Wu Fengguang
2011-04-26 17:19 ` Vivek Goyal
2011-04-28 14:27 ` Wu Fengguang
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