From: Christoph Lameter <cl@linux.com>
To: Luiz Capitulino <lcapitulino@redhat.com>
Cc: Marcelo Tosatti <mtosatti@redhat.com>,
linux-kernel@vger.kernel.org, linux-mm@kvack.org,
Rik van Riel <riel@redhat.com>,
Linux RT Users <linux-rt-users@vger.kernel.org>,
cmetcalf@mellanox.com
Subject: Re: [patch 2/2] MM: allow per-cpu vmstat_threshold and vmstat_worker configuration
Date: Mon, 22 May 2017 11:35:55 -0500 (CDT) [thread overview]
Message-ID: <alpine.DEB.2.20.1705221134540.11040@east.gentwo.org> (raw)
In-Reply-To: <20170519134934.0c298882@redhat.com>
On Fri, 19 May 2017, Luiz Capitulino wrote:
> Something that crossed my mind was to add a new tunable to set
> the vmstat_interval for each CPU, this way we could essentially
> disable it to the CPUs where DPDK is running. What's the implications
> of doing this besides not getting up to date stats in /proc/vmstat
> (which I still have to confirm would be OK)? Can this break anything
> in the kernel for example?
The data is still going to be updated when the differential gets to big.
Increasing the vmstat interval and reducing the differential threshold
would get your there....
--
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:[~2017-05-22 16:36 UTC|newest]
Thread overview: 31+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-04-25 13:57 [patch 0/2] per-CPU vmstat thresholds and vmstat worker disablement Marcelo Tosatti
2017-04-25 13:57 ` [patch 1/2] MM: remove unused quiet_vmstat function Marcelo Tosatti
2017-04-25 13:57 ` [patch 2/2] MM: allow per-cpu vmstat_threshold and vmstat_worker configuration Marcelo Tosatti
2017-04-25 19:29 ` Rik van Riel
2017-04-25 19:36 ` Marcelo Tosatti
2017-05-02 14:28 ` Luiz Capitulino
2017-05-02 16:52 ` Marcelo Tosatti
2017-05-02 17:15 ` Luiz Capitulino
2017-05-02 17:21 ` Marcelo Tosatti
2017-05-11 15:37 ` Christoph Lameter
2017-05-12 12:27 ` Marcelo Tosatti
2017-05-12 15:11 ` Christoph Lameter
2017-05-12 15:40 ` Marcelo Tosatti
2017-05-12 16:03 ` Christoph Lameter
2017-05-12 16:07 ` Christoph Lameter
2017-05-12 16:19 ` Marcelo Tosatti
2017-05-12 16:57 ` Christoph Lameter
2017-05-15 19:15 ` Marcelo Tosatti
2017-05-16 13:37 ` Christoph Lameter
2017-05-19 14:34 ` Marcelo Tosatti
2017-05-19 17:13 ` Christoph Lameter
2017-05-19 17:49 ` Luiz Capitulino
2017-05-22 16:35 ` Christoph Lameter [this message]
2017-05-25 19:35 ` Marcelo Tosatti
2017-05-26 3:24 ` Christoph Lameter
2017-05-26 19:09 ` Marcelo Tosatti
2017-05-30 18:17 ` Christoph Lameter
2017-07-10 15:05 ` Marcelo Tosatti
2017-05-20 8:26 ` Marcelo Tosatti
2017-05-22 16:38 ` Christoph Lameter
2017-05-22 21:13 ` Marcelo Tosatti
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.2.20.1705221134540.11040@east.gentwo.org \
--to=cl@linux.com \
--cc=cmetcalf@mellanox.com \
--cc=lcapitulino@redhat.com \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-mm@kvack.org \
--cc=linux-rt-users@vger.kernel.org \
--cc=mtosatti@redhat.com \
--cc=riel@redhat.com \
/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