Re: [GIT PULL] adaptive spinning mutexes

Andrew Morton
2009-01-14T18:53:00Z

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.