From: Wu Fengguang <fengguang.wu@intel.com>
To: <linux-fsdevel@vger.kernel.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>, Jan Kara <jack@suse.cz>,
Michael Rubin <mrubin@google.com>,
Wu Fengguang <fengguang.wu@intel.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
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>
Subject: [PATCH 1/5] writeback: account per-bdi accumulated dirtied pages
Date: Tue, 16 Aug 2011 10:20:07 +0800 [thread overview]
Message-ID: <20110816022328.684033431@intel.com> (raw)
In-Reply-To: 20110816022006.348714319@intel.com
[-- Attachment #1: writeback-bdi-dirtied.patch --]
[-- Type: text/plain, Size: 2017 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 2011-06-12 20:58:31.000000000 +0800
+++ linux-next/include/linux/backing-dev.h 2011-06-12 20:58:40.000000000 +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 2011-06-12 20:58:31.000000000 +0800
+++ linux-next/mm/page-writeback.c 2011-06-12 20:58:40.000000000 +0800
@@ -1530,6 +1530,7 @@ 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 2011-06-12 20:58:31.000000000 +0800
+++ linux-next/mm/backing-dev.c 2011-06-12 20:58:55.000000000 +0800
@@ -97,6 +97,7 @@ static int bdi_debug_stats_show(struct s
"BdiDirtyThresh: %10lu kB\n"
"DirtyThresh: %10lu kB\n"
"BackgroundThresh: %10lu kB\n"
+ "BdiDirtied: %10lu kB\n"
"BdiWritten: %10lu kB\n"
"BdiWriteBandwidth: %10lu kBps\n"
"b_dirty: %10lu\n"
@@ -109,6 +110,7 @@ static int bdi_debug_stats_show(struct s
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)),
(unsigned long) K(bdi->write_bandwidth),
nr_dirty,
next prev parent reply other threads:[~2011-08-16 2:20 UTC|newest]
Thread overview: 28+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-08-16 2:20 [PATCH 0/5] IO-less dirty throttling v9 Wu Fengguang
2011-08-16 2:20 ` Wu Fengguang [this message]
2011-08-16 2:20 ` [PATCH 2/5] writeback: dirty position control Wu Fengguang
2011-08-16 19:41 ` Jan Kara
2011-08-17 13:23 ` Wu Fengguang
2011-08-17 13:49 ` Wu Fengguang
2011-08-17 20:24 ` Jan Kara
2011-08-18 4:18 ` Wu Fengguang
2011-08-18 4:41 ` Wu Fengguang
2011-08-18 19:16 ` Jan Kara
2011-08-24 3:16 ` Wu Fengguang
2011-08-19 2:53 ` Vivek Goyal
2011-08-19 3:25 ` Wu Fengguang
2011-08-16 2:20 ` [PATCH 3/5] writeback: dirty rate control Wu Fengguang
2011-08-16 2:20 ` [PATCH 4/5] writeback: per task dirty rate limit Wu Fengguang
2011-08-16 7:17 ` Andrea Righi
2011-08-16 7:22 ` Wu Fengguang
2011-08-16 2:20 ` [PATCH 5/5] writeback: IO-less balance_dirty_pages() Wu Fengguang
2011-08-19 2:06 ` Vivek Goyal
2011-08-19 2:54 ` Wu Fengguang
2011-08-19 19:00 ` Vivek Goyal
2011-08-21 3:46 ` Wu Fengguang
2011-08-22 17:22 ` Vivek Goyal
2011-08-23 1:07 ` Wu Fengguang
2011-08-23 3:53 ` Wu Fengguang
2011-08-23 13:53 ` Vivek Goyal
2011-08-24 3:09 ` Wu Fengguang
-- strict thread matches above, loose matches on Subject: below --
2011-08-06 8:44 [PATCH 0/5] IO-less dirty throttling v8 Wu Fengguang
2011-08-06 8:44 ` [PATCH 1/5] writeback: account per-bdi accumulated dirtied pages Wu Fengguang
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