From: Davidlohr Bueso <dave@stgolabs.net>
To: WANG Chao <chaowang@redhat.com>
Cc: Andrew Morton <akpm@linux-foundation.org>,
Ingo Molnar <mingo@redhat.com>,
Peter Zijlstra <peterz@infradead.org>,
Michel Lespinasse <walken@google.com>,
Rik van Riel <riel@redhat.com>, Mel Gorman <mgorman@suse.de>,
linux-mm@kvack.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH] mm, vmacache: Add kconfig VMACACHE_SHIFT
Date: Wed, 21 Jan 2015 23:46:01 -0800 [thread overview]
Message-ID: <1421912761.4903.22.camel@stgolabs.net> (raw)
In-Reply-To: <1421908189-18938-1-git-send-email-chaowang@redhat.com>
On Thu, 2015-01-22 at 14:29 +0800, WANG Chao wrote:
> Add a new kconfig option VMACACHE_SHIFT (as a power of 2) to specify the
> number of slots vma cache has for each thread. Range is chosen 0-4 (1-16
> slots) to consider both overhead and performance penalty. Default is 2
> (4 slots) as it originally is, which provides good enough balance.
>
Nack. I don't feel comfortable making scalability features of core code
configurable.
Thanks,
Davidlohr
--
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:[~2015-01-22 7:46 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-01-22 6:29 [PATCH] mm, vmacache: Add kconfig VMACACHE_SHIFT WANG Chao
2015-01-22 7:46 ` Davidlohr Bueso [this message]
2015-01-22 7:57 ` WANG Chao
2015-01-22 16:19 ` Davidlohr Bueso
2015-01-22 16:22 ` Rik van Riel
2015-01-23 5:14 ` WANG Chao
2015-01-24 1:02 ` Sasha Levin
2015-01-22 15:45 ` Vlastimil Babka
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=1421912761.4903.22.camel@stgolabs.net \
--to=dave@stgolabs.net \
--cc=akpm@linux-foundation.org \
--cc=chaowang@redhat.com \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-mm@kvack.org \
--cc=mgorman@suse.de \
--cc=mingo@redhat.com \
--cc=peterz@infradead.org \
--cc=riel@redhat.com \
--cc=walken@google.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).