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Re: [PING] [v9] malloc: Consistently apply trim_threshold to all heaps [BZ #17195]
- From: Mel Gorman <mgorman at suse dot de>
- To: Siddhesh Poyarekar <siddhesh at redhat dot com>
- Cc: Mike Frysinger <vapier at gentoo dot org>, Julian Taylor <jtaylor dot debian at googlemail dot com>, Chris Metcalf <cmetcalf at ezchip dot com>, Carlos O'Donell <carlos at redhat dot com>, libc-alpha at sourceware dot org
- Date: Mon, 16 Mar 2015 16:13:33 +0000
- Subject: Re: [PING] [v9] malloc: Consistently apply trim_threshold to all heaps [BZ #17195]
- Authentication-results: sourceware.org; auth=none
- References: <20150306142934 dot GX3087 at suse dot de>
On Fri, Mar 06, 2015 at 02:29:34PM +0000, Mel Gorman wrote:
> Trimming heaps is a balance between saving memory and the system overhead
> required to update page tables and discard allocated pages. The malloc
> option M_TRIM_THRESHOLD is a tunable that users are meant to use to decide
> where this balance point is but it is only applied to the main arena.
Ping as it's been a while since anyone said anything on it. I note it's
in patchwork (http://patchwork.sourceware.org/patch/5496/) but do not
know if that means anyone plans to look at it. Thanks.