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Date: Wed, 14 Jan 2009 10:53:00 -0800
From: Andrew Morton <akpm@linux-foundation.org>
To: Ingo Molnar <mingo@elte.hu>
Cc: Linus Torvalds <torvalds@linux-foundation.org>,
       Peter Zijlstra <a.p.zijlstra@chello.nl>,
       "Paul E. McKenney" <paulmck@linux.vnet.ibm.com>,
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       Sven Dietrich <SDietrich@novell.com>,
       Dmitry Adamushko <dmitry.adamushko@gmail.com>,
       Johannes Weiner <hannes@cmpxchg.org>
Subject: Re: [GIT PULL] adaptive spinning mutexes
Message-Id: <20090114105300.66bd014d.akpm@linux-foundation.org>
In-Reply-To: <20090114183319.GA18630@elte.hu>
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On Wed, 14 Jan 2009 19:33:19 +0100 Ingo Molnar <mingo@elte.hu> wrote:

> Please pull the adaptive-mutexes-for-linus git tree

<fear>

- It seems a major shortcoming that the feature is disabled if
  CONFIG_DEBUG_MUTEXES=y.  It means that lots of people won't test it.

- When people hit performance/latency oddities, it would be nice if
  they had a /proc knob with which they could disable this feature at
  runtime.

  This would also be useful for comparative performance testing.
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