Messages in this thread | | | Date | Fri, 20 Apr 2018 12:58:52 +0200 | From | Juri Lelli <> | Subject | Re: [PATCH] sched/rt: Rework for_each_process_thread() iterations in tg_has_rt_tasks() |
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On 20/04/18 12:43, Kirill Tkhai wrote: > On 20.04.2018 12:25, Juri Lelli wrote:
[...]
> > Isn't this however checking against the current (dynamic) number of > > runnable tasks/groups instead of the "static" group membership (which > > shouldn't be affected by a task running state)? > > Ah, you are sure. I forgot that rt_nr_running does not contain sleeping tasks. > We need to check something else here. I'll try to find another way.
n/p. Maybe a per rt_rq flag linked to "static" membership (I didn't really thought this through though :).
BTW, since you faced this problem, I guess this is on RT_GROUP_SCHED enabled boxes, so I'd have a couple of questions (not strictly related to the problem at hand):
- do such boxes rely on RT throttling being performed at root level? - is RT_RUNTIME_SHARE enabled?
Thanks,
- Juri
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