From: Andrew Morton <akpm@linux-foundation.org>
To: David Rientjes <rientjes@google.com>
Cc: Jonathan Corbet <corbet@lwn.net>,
Vlastimil Babka <vbabka@suse.cz>, Mel Gorman <mgorman@suse.de>,
linux-kernel@vger.kernel.org, linux-mm@kvack.org,
linux-doc@vger.kernel.org
Subject: Re: [patch 1/2] mm, page_alloc: extend kernelcore and movablecore for percent
Date: Tue, 13 Feb 2018 15:46:07 -0800 [thread overview]
Message-ID: <20180213154607.f631e2e033f42c32925e3d2d@linux-foundation.org> (raw)
In-Reply-To: <alpine.DEB.2.10.1802121622470.179479@chino.kir.corp.google.com>
On Mon, 12 Feb 2018 16:24:25 -0800 (PST) David Rientjes <rientjes@google.com> wrote:
> Both kernelcore= and movablecore= can be used to define the amount of
> ZONE_NORMAL and ZONE_MOVABLE on a system, respectively. This requires
> the system memory capacity to be known when specifying the command line,
> however.
>
> This introduces the ability to define both kernelcore= and movablecore=
> as a percentage of total system memory. This is convenient for systems
> software that wants to define the amount of ZONE_MOVABLE, for example, as
> a proportion of a system's memory rather than a hardcoded byte value.
>
> To define the percentage, the final character of the parameter should be
> a '%'.
Is this fine-grained enough? We've had percentage-based tunables in
the past, and 10 years later when systems are vastly larger, 1% is too
much.
--
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:[~2018-02-13 23:46 UTC|newest]
Thread overview: 23+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-02-13 0:24 David Rientjes
2018-02-13 0:24 ` [patch 2/2] mm, page_alloc: move mirrored_kernelcore to __meminitdata David Rientjes
2018-02-13 23:46 ` Andrew Morton [this message]
2018-02-13 23:55 ` [patch 1/2] mm, page_alloc: extend kernelcore and movablecore for percent David Rientjes
2018-02-14 1:14 ` Andrew Morton
2018-02-14 0:37 ` Mike Kravetz
2018-02-14 0:53 ` David Rientjes
2018-02-14 1:00 ` [patch -mm] mm, page_alloc: extend kernelcore and movablecore for percent fix David Rientjes
2018-02-14 1:10 ` Mike Kravetz
2018-02-14 9:59 ` [patch 1/2] mm, page_alloc: extend kernelcore and movablecore for percent Michal Hocko
2018-02-14 10:28 ` David Rientjes
2018-02-15 14:45 ` Michal Hocko
2018-02-15 15:11 ` Matthew Wilcox
2018-02-15 15:49 ` Christopher Lameter
2018-02-15 20:14 ` Matthew Wilcox
2018-02-16 15:41 ` Christopher Lameter
2018-02-15 20:48 ` Matthew Wilcox
2018-02-16 0:45 ` David Rientjes
2018-02-16 15:44 ` Christopher Lameter
2018-02-16 16:01 ` Matthew Wilcox
2018-02-16 16:08 ` Christopher Lameter
2018-02-16 17:09 ` Matthew Wilcox
2018-02-15 20:47 ` David Rientjes
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=20180213154607.f631e2e033f42c32925e3d2d@linux-foundation.org \
--to=akpm@linux-foundation.org \
--cc=corbet@lwn.net \
--cc=linux-doc@vger.kernel.org \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-mm@kvack.org \
--cc=mgorman@suse.de \
--cc=rientjes@google.com \
--cc=vbabka@suse.cz \
/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