From: John Stultz <john.stultz@linaro.org>
Date: Thu, 12 Mar 2015 00:40:02 +0000 (-0700)
Subject: selftests/timers: Add clock skew estimation test from timetest suite
X-Git-Tag: omap-for-v4.2/o2_dc~193^2~36
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=51f91cbdf5450b773eb221a2dfd141a92413370e;p=pandora-kernel.git

selftests/timers: Add clock skew estimation test from timetest suite

This adds my clock skew estimation test from the timetest suite.
It measures the drift between CLOCK_MONOTONIC and CLOCK_MONOTONIC_RAW
and compares it with the current frequency value from adjtimex.

It sometimes can trigger false failures when ntpd isn't in a
steady state, but its a useful too when doing adjtimex testing.

Cc: Shuah Khan <shuahkh@osg.samsung.com>
Cc: Prarit Bhargava <prarit@redhat.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Richard Cochran <richardcochran@gmail.com>
Signed-off-by: John Stultz <john.stultz@linaro.org>
Tested-by: Prarit Bhargava <prarit@redhat.com>
Signed-off-by: Shuah Khan <shuahkh@osg.samsung.com>
---

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