From: Deepthi Dharwar <deepthi@linux.vnet.ibm.com>
To: linuxppc-dev@lists.ozlabs.org, linux-kernel@vger.kernel.org,
linuxppc-dev@ozlabs.org
Subject: [PATCH v1 0/3] cpuidle: (pSeries) pseries idle driver fixes.
Date: Thu, 04 Oct 2012 10:12:01 +0530 [thread overview]
Message-ID: <20121004044154.15921.51256.stgit@deepthi.in.ibm.com> (raw)
The following series consists of a bunch of fixes for
cpuidle back-end driver for ppc64 (pSeries) platform.
The series applies on 3.6-rc7 and has been tested on ppc64 pSeries
POWER7 system with snooze and nap states.
With these fixes, avg idle residency for nap on 50 percent idle system
increased from 96 to 99.4 percent and idle residency for snooze for
the same decreased from 4 to 0.6 percent, determined running spec power
benchmark runs.
Deepthi Dharwar (3):
cpuidle: (POWER) Fix snooze state problem persistant in the current cpuidle design on pseries.
cpuidle: (POWER) Fix smt_snooze_delay functionality.
cpuidle: (POWER) Fix target residency initialisation in pseries cpuidle
arch/powerpc/include/asm/processor.h | 4 +
arch/powerpc/kernel/sysfs.c | 2 -
arch/powerpc/platforms/pseries/processor_idle.c | 62 +++++++++++------------
3 files changed, 32 insertions(+), 36 deletions(-)
-- Deepthi
next reply other threads:[~2012-10-04 4:42 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-10-04 4:42 Deepthi Dharwar [this message]
2012-10-04 4:42 ` [PATCH v1 1/3] cpuidle: (POWER) Fix target residency initialisation in pseries cpuidle Deepthi Dharwar
2012-10-04 4:42 ` [PATCH v1 2/3] cpuidle: (POWER) Fix smt_snooze_delay functionality Deepthi Dharwar
2012-10-04 4:42 ` [PATCH v1 3/3] cpuidle: (POWER) Fix snooze state problem persistant in the current cpuidle design on pseries Deepthi Dharwar
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