From: Andi Kleen <ak@linux.intel.com>
To: Shaohua Li <shaohua.li@intel.com>
Cc: Christoph Lameter <cl@linux.com>,
lkml <linux-kernel@vger.kernel.org>,
linux-mm <linux-mm@kvack.org>,
Andrew Morton <akpm@linux-foundation.org>,
Jens Axboe <axboe@kernel.dk>,
"lee.schermerhorn@hp.com" <lee.schermerhorn@hp.com>,
David Rientjes <rientjes@google.com>
Subject: Re: [patch v3]numa: add a sysctl to control interleave allocation granularity from each node to improve I/O performance
Date: Wed, 14 Dec 2011 09:53:02 -0800 [thread overview]
Message-ID: <20111214175302.GA2600@alboin.jf.intel.com> (raw)
In-Reply-To: <1323830027.22361.401.camel@sli10-conroe>
> That's what I want to avoid letting each apps to explicitly do it, it's
> a lot of burden.
Usually apps that set NUMA policy can change it. Most don't anyways.
If it's just a script with numactl it's easily changed.
> That's true only workload with heavy I/O wants this. but I don't expect
> it will harm other workloads.
How do you know?
>
> >> Also I don't like having more per task state. Could you compute this
> >> from the address instead even for the process policy case?
> >
> >That sounds good.
> the process policy case doesn't give an address for allocation.
That's true.
-Andi
--
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/ .
Fight unfair telecom internet charges in Canada: sign http://stopthemeter.ca/
Don't email: <a href=mailto:"dont@kvack.org"> email@kvack.org </a>
next prev parent reply other threads:[~2011-12-14 17:53 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-12-12 1:58 [patch v3]numa: add a sysctl to control interleave allocation granularity from each node to improve I/O performance Shaohua Li
2011-12-13 19:06 ` Andi Kleen
2011-12-13 20:12 ` Christoph Lameter
2011-12-13 20:38 ` Andi Kleen
2011-12-14 2:33 ` Shaohua Li
2011-12-14 17:53 ` Andi Kleen [this message]
2011-12-15 1:27 ` Shaohua Li
2012-01-09 7:31 ` Shaohua Li
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=20111214175302.GA2600@alboin.jf.intel.com \
--to=ak@linux.intel.com \
--cc=akpm@linux-foundation.org \
--cc=axboe@kernel.dk \
--cc=cl@linux.com \
--cc=lee.schermerhorn@hp.com \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-mm@kvack.org \
--cc=rientjes@google.com \
--cc=shaohua.li@intel.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;
as well as URLs for NNTP newsgroup(s).