Re: [RFC][PATCH 0/3] Speed up SLUB poisoning + disable checks

From	Christoph Lameter <cl@linux.com>
Newsgroups	linux.kernel
Subject	Re: [RFC][PATCH 0/3] Speed up SLUB poisoning + disable checks
Date	2016-01-26 16:00 +0100
Message-ID	<qVdg7-5z6-35@gated-at.bofh.it> (permalink)
References	<qV0sy-46L-5@gated-at.bofh.it>
Organization	linux.* mail to news gateway

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On Mon, 25 Jan 2016, Laura Abbott wrote:

> slub_debug=-:  7.437
> slub_debug=-:   7.932

So thats an almost 10% performance regression if the feature is not used.
The reason that posoning is on the slow path is because it is impacting
performance. Focus on optimizing the debug path without impacting the fast
path please.

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[RFC][PATCH 0/3] Speed up SLUB poisoning + disable checks Laura Abbott <labbott@fedoraproject.org> - 2016-01-26 02:20 +0100
  [RFC][PATCH 1/3] slub: Drop lock at the end of free_debug_processing Laura Abbott <labbott@fedoraproject.org> - 2016-01-26 02:20 +0100
    Re: [RFC][PATCH 1/3] slub: Drop lock at the end of  free_debug_processing Christoph Lameter <cl@linux.com> - 2016-01-26 17:20 +0100
  [RFC][PATCH 2/3] slub: Don't limit debugging to slow paths Laura Abbott <labbott@fedoraproject.org> - 2016-01-26 02:20 +0100
    Re: [RFC][PATCH 2/3] slub: Don't limit debugging to slow paths Paul Bolle <pebolle@tiscali.nl> - 2016-01-26 09:50 +0100
  Re: [RFC][PATCH 0/3] Speed up SLUB poisoning + disable checks Joonsoo Kim <iamjoonsoo.kim@lge.com> - 2016-01-26 08:10 +0100
    Re: [RFC][PATCH 0/3] Speed up SLUB poisoning + disable checks Christoph Lameter <cl@linux.com> - 2016-01-26 16:10 +0100
      Re: [RFC][PATCH 0/3] Speed up SLUB poisoning + disable checks Joonsoo Kim <js1304@gmail.com> - 2016-01-26 16:30 +0100
  Re: [RFC][PATCH 0/3] Speed up SLUB poisoning + disable checks Christoph Lameter <cl@linux.com> - 2016-01-26 16:00 +0100

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