linux-kernel - [RFC PATCH 0/4] perf/core: Small event scheduling changes

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Message-Id: <1257711206-12243-1-git-send-email-fweisbec@gmail.com>
Date:	Sun,  8 Nov 2009 21:13:22 +0100
From:	Frederic Weisbecker <fweisbec@...il.com>
To:	Ingo Molnar <mingo@...e.hu>
Cc:	LKML <linux-kernel@...r.kernel.org>,
	Frederic Weisbecker <fweisbec@...il.com>,
	Peter Zijlstra <peterz@...radead.org>,
	Arnaldo Carvalho de Melo <acme@...hat.com>,
	Mike Galbraith <efault@....de>,
	Paul Mackerras <paulus@...ba.org>,
	Thomas Gleixner <tglx@...utronix.de>
Subject: [RFC PATCH 0/4] perf/core: Small event scheduling changes

Hi,

This is an rfc patchset, only compile tested just to ensure I'm taking
a good direction before going ahead.

This is intended to rework a bit the perf event scheduling to
guarantee a real priority of the pinned events over the volatile
ones. This patchset handles such priority on task tick time
only. But if the idea is agreed, I could expand that to every
task event sched-in calls to guarantee the priority in every
event rescheduling time.

Thanks.

Frederic Weisbecker (4):
  perf/core: split context's event group list into pinned and
    non-pinned lists
  perf/core: Optimize a bit rotate_ctx()
  perf/core: Split up pinned and non pinned processing
  perf/core: Schedule every pinned events before the the non-pinned

 include/linux/perf_event.h |    3 +-
 kernel/perf_event.c        |  283 ++++++++++++++++++++++++++++++++-----------
 2 files changed, 212 insertions(+), 74 deletions(-)

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