From: Wu Fengguang <fengguang.wu@intel.com>
To: Andrew Morton <akpm@linux-foundation.org>
Cc: Jan Kara <jack@suse.cz>, Theodore Tso <tytso@mit.edu>,
Peter Zijlstra <a.p.zijlstra@chello.nl>,
Wu Fengguang <fengguang.wu@intel.com>
Cc: Christoph Hellwig <hch@lst.de>
Cc: Trond Myklebust <Trond.Myklebust@netapp.com>
Cc: Dave Chinner <david@fromorbit.com>
Cc: Chris Mason <chris.mason@oracle.com>
Cc: Mel Gorman <mel@csn.ul.ie>
Cc: Rik van Riel <riel@redhat.com>
Cc: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.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: Balbir Singh <balbir@linux.vnet.ibm.com>
Cc: linux-mm <linux-mm@kvack.org>
Cc: <linux-fsdevel@vger.kernel.org>
Cc: LKML <linux-kernel@vger.kernel.org>
Subject: [PATCH 09/12] writeback: show bdi write bandwidth in debugfs
Date: Sat, 16 Apr 2011 21:25:55 +0800 [thread overview]
Message-ID: <20110416134333.566044184@intel.com> (raw)
In-Reply-To: 20110416132546.765212221@intel.com
[-- Attachment #1: writeback-bandwidth-show.patch --]
[-- Type: text/plain, Size: 2593 bytes --]
Add a "BdiWriteBandwidth" entry and indent others in /debug/bdi/*/stats.
btw, increase digital field width to 10, for keeping the possibly
huge BdiWritten number aligned at least for desktop systems.
This could break user space tools if they are dumb enough to depend on
the number of white spaces.
CC: Theodore Ts'o <tytso@mit.edu>
CC: Jan Kara <jack@suse.cz>
CC: Peter Zijlstra <a.p.zijlstra@chello.nl>
Signed-off-by: Wu Fengguang <fengguang.wu@intel.com>
---
mm/backing-dev.c | 34 ++++++++++++++++++++--------------
1 file changed, 20 insertions(+), 14 deletions(-)
--- linux-next.orig/mm/backing-dev.c 2011-04-13 17:18:16.000000000 +0800
+++ linux-next/mm/backing-dev.c 2011-04-13 17:18:17.000000000 +0800
@@ -81,24 +81,30 @@ static int bdi_debug_stats_show(struct s
#define K(x) ((x) << (PAGE_SHIFT - 10))
seq_printf(m,
- "BdiWriteback: %8lu kB\n"
- "BdiReclaimable: %8lu kB\n"
- "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"
- "b_more_io: %8lu\n"
- "bdi_list: %8u\n"
- "state: %8lx\n",
+ "BdiWriteback: %10lu kB\n"
+ "BdiReclaimable: %10lu kB\n"
+ "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"
+ "b_io: %10lu\n"
+ "b_more_io: %10lu\n"
+ "bdi_list: %10u\n"
+ "state: %10lx\n",
(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),
+ 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,
+ (unsigned long) K(bdi->write_bandwidth),
+ nr_dirty,
+ nr_io,
+ nr_more_io,
!list_empty(&bdi->bdi_list), bdi->state);
#undef K
--
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next prev parent reply other threads:[~2011-04-16 13:25 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 ` [PATCH 02/12] writeback: account per-bdi accumulated dirtied pages Wu Fengguang
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 ` Wu Fengguang [this message]
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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