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Message-Id: <1256943268-12164-7-git-send-email-gregkh@suse.de> Date: Fri, 30 Oct 2009 15:54:26 -0700 From: Greg Kroah-Hartman <gregkh@...e.de> To: linux-kernel@...r.kernel.org Cc: Alex Chiang <achiang@...com>, Suresh Siddha <suresh.b.siddha@...el.com>, Ingo Molnar <mingo@...e.hu>, Greg Kroah-Hartman <gregkh@...e.de> Subject: [PATCH 7/9] Documentation: ABI: /sys/devices/system/cpu/sched_[mc|smt]_power_savings From: Alex Chiang <achiang@...com> Document sched_[mc|smt]_power_savings by reading existing code and git logs. Cc: Suresh Siddha <suresh.b.siddha@...el.com> Cc: Ingo Molnar <mingo@...e.hu> Signed-off-by: Alex Chiang <achiang@...com> Signed-off-by: Greg Kroah-Hartman <gregkh@...e.de> --- Documentation/ABI/testing/sysfs-devices-system-cpu | 24 ++++++++++++++++++++ 1 files changed, 24 insertions(+), 0 deletions(-) diff --git a/Documentation/ABI/testing/sysfs-devices-system-cpu b/Documentation/ABI/testing/sysfs-devices-system-cpu index 2ade5c0..8cdda1c 100644 --- a/Documentation/ABI/testing/sysfs-devices-system-cpu +++ b/Documentation/ABI/testing/sysfs-devices-system-cpu @@ -9,6 +9,30 @@ Description: /sys/devices/system/cpu/cpu#/ +What: /sys/devices/system/cpu/sched_mc_power_savings + /sys/devices/system/cpu/sched_smt_power_savings +Date: June 2006 +Contact: Linux kernel mailing list <linux-kernel@...r.kernel.org> +Description: Discover and adjust the kernel's multi-core scheduler support. + + Possible values are: + + 0 - No power saving load balance (default value) + 1 - Fill one thread/core/package first for long running threads + 2 - Also bias task wakeups to semi-idle cpu package for power + savings + + sched_mc_power_savings is dependent upon SCHED_MC, which is + itself architecture dependent. + + sched_smt_power_savings is dependent upon SCHED_SMT, which + is itself architecture dependent. + + The two files are independent of each other. It is possible + that one file may be present without the other. + + Introduced by git commit 5c45bf27. + What: /sys/devices/system/cpu/kernel_max /sys/devices/system/cpu/offline -- 1.6.4.2 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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