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[PATCH 0/2] cpufreq: governor: Optimize work queuing in ondemand/conservative

From "Rafael J. Wysocki" <rjw@rjwysocki.net>
Newsgroups linux.kernel
Subject [PATCH 0/2] cpufreq: governor: Optimize work queuing in ondemand/conservative
Date 2016-02-12 14:40 +0100
Message-ID <r1m70-7DG-17@gated-at.bofh.it> (permalink)
Organization linux.* mail to news gateway

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Hi,

This is rather extreme, but I think that we should make the scheduler paths as
lightweight as reasonably possible.

[1/2] removes the atomic work counter incrementation from gov_cancel_work() as
      it is not necessary any more.

[2/2] changes the way work items are handled by dbs_update_util_handler() and
      dbs_work_handler() to avoid extra atomic operations in cases when they
      aren't really necessary (policy objects serving one CPU only).

On top of the pm-cpufreq-test branch of linux-pm.git.  Lightly tested, but
I don't have systems where policy objects are shared.

Thanks,
Rafael

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[PATCH 0/2] cpufreq: governor: Optimize work queuing in ondemand/conservative "Rafael J. Wysocki" <rjw@rjwysocki.net> - 2016-02-12 14:40 +0100
  [PATCH 2/2] cpufreq: governor: Avoid atomic operations in hot paths "Rafael J. Wysocki" <rjw@rjwysocki.net> - 2016-02-12 14:40 +0100

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