linux/tools/testing/selftests/timers
John Stultz 51f91cbdf5 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>
2015-03-12 13:22:13 -06:00
..
inconsistency-check.c selftests/timers: Add inconsistency-check test from timetests 2015-03-12 13:22:13 -06:00
Makefile selftests/timers: Add clock skew estimation test from timetest suite 2015-03-12 13:22:13 -06:00
nanosleep.c selftests/timers: Add nanosleep test from timetest suite 2015-03-12 13:22:13 -06:00
nsleep-lat.c selftests/timers: Add nsleep-lat test from timetest suite 2015-03-12 13:22:13 -06:00
posix_timers.c selftests/timers: Quiet warning due to lack of return check on brk 2015-03-12 13:22:12 -06:00
raw_skew.c selftests/timers: Add clock skew estimation test from timetest suite 2015-03-12 13:22:13 -06:00