From: Jan Stancek <jstancek@redhat.com>
To: ltp@lists.linux.it
Subject: [LTP] [PATCH] sched_rr_get_interval: run tests under SCHED_RR policy
Date: Mon, 6 Jun 2016 09:51:17 -0400 (EDT) [thread overview]
Message-ID: <1897541276.3723702.1465221077297.JavaMail.zimbra@redhat.com> (raw)
In-Reply-To: <20160606115941.GA20756@rei>
----- Original Message -----
> From: "Cyril Hrubis" <chrubis@suse.cz>
> To: "Jan Stancek" <jstancek@redhat.com>
> Cc: ltp@lists.linux.it
> Sent: Monday, 6 June, 2016 1:59:41 PM
> Subject: Re: [LTP] [PATCH] sched_rr_get_interval: run tests under SCHED_RR policy
>
> Hi!
> > Man page says:
> > The specified process should be running under the SCHED_RR
> > scheduling policy.
>
> There does not seem to be such limitation in POSIX at:
>
> http://pubs.opengroup.org/onlinepubs/9699919799/
>
> But they explain that the the time quantum returned by the call is only
> applicable for SCHED_RR in schedulling policies at:
>
> http://pubs.opengroup.org/onlinepubs/9699919799/functions/V2_chap02.html#tag_15_08_04_01
>
> > sched_rr_get_interval_1-1 can rarely fail if run as
> > SCHED_OTHER, because time quantum calculated/returned by
> > get_rr_interval_fair() can change between two calls.
> > For example it depends on number of running tasks on runq.
>
> So this is fine, acked.
Pushed.
Regards,
Jan
prev parent reply other threads:[~2016-06-06 13:51 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-06-03 13:16 [LTP] [PATCH] sched_rr_get_interval: run tests under SCHED_RR policy Jan Stancek
2016-06-06 11:59 ` Cyril Hrubis
2016-06-06 13:51 ` Jan Stancek [this message]
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