[LTP] [PATCH 2/2] syscalls: Add timer measurement library

Jan Stancek jstancek@redhat.com
Wed Jun 21 14:42:06 CEST 2017

----- Original Message -----
> From: "Cyril Hrubis" <chrubis@suse.cz>
> To: ltp@lists.linux.it
> Sent: Tuesday, 20 June, 2017 3:42:18 PM
> Subject: [LTP] [PATCH 2/2] syscalls: Add timer measurement library
> This commit adds a timer measurement library, mostly based on changes
> done to the pselect01.c test and changes all tests that measure timer
> precision to use it.
> The timer testcases that measure timeouts now just define sampling function
> and
> optional setup and cleanup. The rest of the functionality is implemented in
> the
> lib/tst_timer_test.c library. This change not only removes fair amount of
> duplicated code but also allows us to tune thresholds and define testcases in
> a
> single place for all testcases.
> The timer measurement library also supports for passing sleep time and
> number of iterations as a command-line parameters, can print nifty
> frequency plot into the terminal, as well as save test measurements into
> a text file.


looks good to me.

It compiled fine across RHEL 5/6/7 x86_64. No failures when I run it
on my laptop. 

I plan to also run it across multiple arches/distros on randomly
picked systems from lab.


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