* Does the xenomai regular thread whose schedule policy is SCHED_OTHER has more opportunities to occupy the cpu resources then the normal linux thread which managed by linux?
@ 2020-05-13 5:31 孙世龙
2020-05-13 5:54 ` Jan Kiszka
0 siblings, 1 reply; 2+ messages in thread
From: 孙世龙 @ 2020-05-13 5:31 UTC (permalink / raw)
To: xenomai
Hi,
I wonder that whether the xenomai regular thread whose schedule policy
is *SCHED_OTHER* *has more opportunities to occupy the cpu resources*
then the normal linux thread which managed by linux?
Even if the linux thread with *SCHED_FIFO * schedule policy?
Thank you for your attention.
Look forward to hearing from you.
^ permalink raw reply [flat|nested] 2+ messages in thread
* Re: Does the xenomai regular thread whose schedule policy is SCHED_OTHER has more opportunities to occupy the cpu resources then the normal linux thread which managed by linux?
2020-05-13 5:31 Does the xenomai regular thread whose schedule policy is SCHED_OTHER has more opportunities to occupy the cpu resources then the normal linux thread which managed by linux? 孙世龙
@ 2020-05-13 5:54 ` Jan Kiszka
0 siblings, 0 replies; 2+ messages in thread
From: Jan Kiszka @ 2020-05-13 5:54 UTC (permalink / raw)
To: 孙世龙, xenomai
On 13.05.20 07:31, 孙世龙 via Xenomai wrote:
> Hi,
> I wonder that whether the xenomai regular thread whose schedule policy
> is *SCHED_OTHER* *has more opportunities to occupy the cpu resources*
> then the normal linux thread which managed by linux?
> Even if the linux thread with *SCHED_FIFO * schedule policy?
Yes, that happens for Xenomai-attached thread when they enter the
real-time domain, e.g. while holding a Xenomai lock. At that point, they
are above any regular Linux thread by nature - because they have to in
order to not break the scheduling requirements of the RT domain.
Jan
--
Siemens AG, Corporate Technology, CT RDA IOT SES-DE
Corporate Competence Center Embedded Linux
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2020-05-13 5:31 Does the xenomai regular thread whose schedule policy is SCHED_OTHER has more opportunities to occupy the cpu resources then the normal linux thread which managed by linux? 孙世龙
2020-05-13 5:54 ` Jan Kiszka
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