From: Christoph Lameter <cl@linux.com>
To: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
Cc: htejun@gmail.com, akpm@linux-foundation.org, mhocko@kernel.org,
linux-mm@kvack.org, linux-kernel@vger.kernel.org,
torvalds@linux-foundation.org, hannes@cmpxchg.org,
mgorman@suse.de
Subject: Re: [patch 3/3] vmstat: Create our own workqueue
Date: Mon, 2 Nov 2015 10:12:56 -0600 (CST) [thread overview]
Message-ID: <alpine.DEB.2.20.1511021011460.27740@east.gentwo.org> (raw)
In-Reply-To: <201510311143.BIH87000.tOSVFHOFJMLFOQ@I-love.SAKURA.ne.jp>
On Sat, 31 Oct 2015, Tetsuo Handa wrote:
> Then, you need to update below description (or drop it) because
> patch 3/3 alone will not guarantee that the counters are up to date.
The vmstat system does not guarantee that the counters are up to date
always. The whole point is the deferral of updates for performance
reasons. They are updated *at some point* within stat_interval. That needs
to happen and that is what this patchset is fixing.
--
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:[~2015-11-02 16:12 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-10-28 2:41 [patch 0/3] vmstat: Various enhancements Christoph Lameter
2015-10-28 2:41 ` [patch 1/3] vmstat: Make pageset processing optional in refresh_cpu_vm_stats Christoph Lameter
2015-10-28 2:41 ` [patch 2/3] vmstat: make vmstat_updater deferrable again and shut down on idle Christoph Lameter
2015-10-28 2:41 ` [patch 3/3] vmstat: Create our own workqueue Christoph Lameter
2015-10-28 2:43 ` Tejun Heo
2015-10-28 3:04 ` Christoph Lameter
2015-10-28 11:57 ` Tetsuo Handa
2015-10-28 22:32 ` Christoph Lameter
2015-10-29 2:24 ` Tejun Heo
2015-10-29 3:08 ` Tejun Heo
2015-10-30 1:01 ` Christoph Lameter
2015-10-31 1:15 ` Tejun Heo
2015-10-31 2:43 ` Tetsuo Handa
2015-11-02 16:12 ` Christoph Lameter [this message]
2015-11-02 16:52 ` Tetsuo Handa
2015-11-02 18:10 ` Christoph Lameter
2015-11-02 19:11 ` Tejun Heo
2015-11-06 11:28 ` Tetsuo Handa
2015-11-06 12:56 ` Christoph Lameter
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=alpine.DEB.2.20.1511021011460.27740@east.gentwo.org \
--to=cl@linux.com \
--cc=akpm@linux-foundation.org \
--cc=hannes@cmpxchg.org \
--cc=htejun@gmail.com \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-mm@kvack.org \
--cc=mgorman@suse.de \
--cc=mhocko@kernel.org \
--cc=penguin-kernel@I-love.SAKURA.ne.jp \
--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