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Re: [PATCH] [v4] malloc: Consistently apply trim_threshold to all heaps [BZ #17195]

From: Siddhesh Poyarekar <siddhesh at redhat dot com>
To: Julian Taylor <jtaylor dot debian at googlemail dot com>
Cc: Mel Gorman <mgorman at suse dot de>, libc-alpha at sourceware dot org, "Carlos O'Donell" <carlos at redhat dot com>, Rik van Riel <riel at redhat dot com>, KOSAKI Motohiro <kosaki dot motohiro at gmail dot com>, Konstantin Serebryany <kcc at google dot com>, Minchan Kim <minchan dot kim at gmail dot com>
Date: Fri, 20 Feb 2015 18:00:05 +0530
Subject: Re: [PATCH] [v4] malloc: Consistently apply trim_threshold to all heaps [BZ #17195]
Authentication-results: sourceware.org; auth=none
References: <20150218102900 dot GF23372 at suse dot de> <54E492FC dot 6020500 at googlemail dot com> <20150218150959 dot GP3087 at suse dot de> <54E4B308 dot 5040608 at googlemail dot com>

On Wed, Feb 18, 2015 at 04:43:04PM +0100, Julian Taylor wrote:
> it was probably BZ#11261 that I remembered, its about excessive virtual
> memory usage due to arenas.
> As they are now trimmed less aggressively are we making it worse?

That is a completely different problem.  The number of arenas went out
of control because there was a race in accounting the number of
arenas.

Siddhesh

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References:
- [PATCH] [v4] malloc: Consistently apply trim_threshold to all heaps [BZ #17195]
  - From: Mel Gorman
- Re: [PATCH] [v4] malloc: Consistently apply trim_threshold to all heaps [BZ #17195]
  - From: Julian Taylor
- Re: [PATCH] [v4] malloc: Consistently apply trim_threshold to all heaps [BZ #17195]
  - From: Mel Gorman
- Re: [PATCH] [v4] malloc: Consistently apply trim_threshold to all heaps [BZ #17195]
  - From: Julian Taylor

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