linux-kernel - Re: [RFC PATCHv2] power: Add option to log time spent in suspend

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Date:	Tue, 28 May 2013 13:40:10 -0700
From:	John Stultz <john.stultz@...aro.org>
To:	Zoran Markovic <zoran.markovic@...aro.org>
CC:	linux-kernel@...r.kernel.org, Colin Cross <ccross@...roid.com>,
	Android Kernel Team <kernel-team@...roid.com>,
	Todd Poynor <toddpoynor@...gle.com>,
	San Mehat <san@...gle.com>, Benoit Goby <benoit@...roid.com>,
	Thomas Gleixner <tglx@...utronix.de>
Subject: Re: [RFC PATCHv2] power: Add option to log time spent in suspend

On 05/21/2013 10:32 PM, Zoran Markovic wrote:
> From: Colin Cross <ccross@...roid.com>
>
> Below is a patch from android kernel that maintains a histogram of
> suspend times. Please review and provide feedback.
>
> Statistices on the time spent in suspend are kept in
> /sys/kernel/debug/sleep_time.
>
> Cc: Android Kernel Team <kernel-team@...roid.com>
> Cc: Colin Cross <ccross@...roid.com>
> Cc: Todd Poynor <toddpoynor@...gle.com>
> Cc: San Mehat <san@...gle.com>
> Cc: Benoit Goby <benoit@...roid.com>
> Cc: John Stultz <john.stultz@...aro.org>
> Cc: Thomas Gleixner <tglx@...utronix.de>
> Signed-off-by: Colin Cross <ccross@...roid.com>
> Signed-off-by: Todd Poynor <toddpoynor@...gle.com>
> [zoran.markovic@...aro.org: Re-formatted suspend time table to better fit
> expected values. Moved accounting of suspend time into timekeeping core.
> Removed CONFIG_SUSPEND_TIME flag and made the feature conditional on
> CONFIG_DEBUG_FS. Changed the file name to sleep_time to better fit terminology
> in timekeeping core. Changed seq_printf to seq_puts. Tweaked commit message]
> Signed-off-by: Zoran Markovic <zoran.markovic@...aro.org>

Queued for 3.11.

Thanks!
-john

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