From: Rik van Riel <riel@redhat.com>
To: Wu Fengguang <fengguang.wu@intel.com>
Cc: Andrew Morton <akpm@linux-foundation.org>,
"torvalds@linux-foundation.org" <torvalds@linux-foundation.org>,
"kosaki.motohiro@jp.fujitsu.com" <kosaki.motohiro@jp.fujitsu.com>,
"lee.schermerhorn@hp.com" <lee.schermerhorn@hp.com>,
"peterz@infradead.org" <peterz@infradead.org>,
"linux-mm@kvack.org" <linux-mm@kvack.org>,
LKML <linux-kernel@vger.kernel.org>,
Nick Piggin <npiggin@suse.de>,
Christoph Lameter <cl@linux-foundation.org>
Subject: Re: [RFC][PATCH] vmscan: don't export nr_saved_scan in /proc/zoneinfo
Date: Sat, 02 May 2009 10:21:34 -0400 [thread overview]
Message-ID: <49FC56EE.4080402@redhat.com> (raw)
In-Reply-To: <20090502024719.GA29730@localhost>
Wu Fengguang wrote:
> The lru->nr_saved_scan's are not meaningful counters for even kernel
> developers. They typically are smaller than 32 and are always 0 for
> large lists. So remove them from /proc/zoneinfo.
>
> Hopefully this interface change won't break too many scripts.
> /proc/zoneinfo is too unstructured to be script friendly, and I wonder
> the affected scripts - if there are any - are still bleeding since the
> not long ago commit "vmscan: split LRU lists into anon & file sets",
> which also touched the "scanned" line :)
>
> If we are to re-export accumulated vmscan counts in the future, they
> can go to new lines in /proc/zoneinfo instead of the current form, or
> to /sys/devices/system/node/node0/meminfo?
>
> CC: Christoph Lameter <cl@linux-foundation.org>
> Signed-off-by: Wu Fengguang <fengguang.wu@intel.com>
Acked-by: Rik van Riel <riel@redhat.com>
--
All rights reversed.
--
To unsubscribe, send a message with 'unsubscribe linux-mm' in
the body to majordomo@kvack.org. For more info on Linux MM,
see: http://www.linux-mm.org/ .
Don't email: <a href=mailto:"dont@kvack.org"> email@kvack.org </a>
next prev parent reply other threads:[~2009-05-02 14:21 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <200904302208.n3UM8t9R016687@imap1.linux-foundation.org>
2009-05-01 1:22 ` [patch 20/22] vmscan: avoid multiplication overflow in shrink_zone() Wu Fengguang
2009-05-01 2:49 ` Andrew Morton
2009-05-01 6:29 ` Wu Fengguang
2009-05-02 2:31 ` [PATCH] vmscan: cleanup the scan batching code Wu Fengguang
2009-05-02 2:47 ` [RFC][PATCH] vmscan: don't export nr_saved_scan in /proc/zoneinfo Wu Fengguang
2009-05-02 14:21 ` Rik van Riel [this message]
2009-05-04 13:50 ` Christoph Lameter
2009-05-04 14:40 ` KOSAKI Motohiro
2009-05-04 21:49 ` Andrew Morton
2009-05-05 7:38 ` Peter Zijlstra
2009-05-05 15:43 ` Christoph Lameter
2009-05-02 14:14 ` [PATCH] vmscan: cleanup the scan batching code Rik van Riel
2009-05-04 8:26 ` Peter Zijlstra
2009-05-04 14:41 ` KOSAKI Motohiro
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=49FC56EE.4080402@redhat.com \
--to=riel@redhat.com \
--cc=akpm@linux-foundation.org \
--cc=cl@linux-foundation.org \
--cc=fengguang.wu@intel.com \
--cc=kosaki.motohiro@jp.fujitsu.com \
--cc=lee.schermerhorn@hp.com \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-mm@kvack.org \
--cc=npiggin@suse.de \
--cc=peterz@infradead.org \
--cc=torvalds@linux-foundation.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).