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From: Jan Kiszka <jan.kiszka@siemens.com>
To: Marco Barletta <barlettamarco8@gmail.com>,
	xenomai@xenomai.org, Philippe Gerum <rpm@xenomai.org>
Subject: Re: xnsched_kick
Date: Fri, 21 May 2021 13:47:55 +0200	[thread overview]
Message-ID: <07f12d49-24fd-cc02-c5c6-143102e1c30f@siemens.com> (raw)
In-Reply-To: <CAK6DXL2H4OuDGehPaHwDtArtg=Y2H+xs6eC49_9NueYPtxRCHA@mail.gmail.com>

On 21.05.21 13:21, Marco Barletta via Xenomai wrote:
> Hi everyone, related to the sched_quota patch I posted about one week ago.
> I'm trying to understand why xnsched_kick is needed, in which situation is
> called. Reading the code it seems it's called when there's a xeno thread
> that must be downgraded and scheduled in Linux, but I didn't understand why
> there's the need to run to complention without respecting group budget. Can
> you help me?

I think that is a valid question because sched-tp does not implement
such a scheme. Basic information can be found in

https://source.denx.de/Xenomai/xenomai/-/commit/cee27b2945f92857308dcde619a3e64607b5327e

I would forward this for further background to the designer...

Jan

-- 
Siemens AG, T RDA IOT
Corporate Competence Center Embedded Linux


  reply	other threads:[~2021-05-21 11:47 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-05-21 11:21 xnsched_kick Marco Barletta
2021-05-21 11:47 ` Jan Kiszka [this message]
2021-05-21 14:41 ` xnsched_kick Philippe Gerum
2021-05-21 15:13   ` xnsched_kick Jan Kiszka
2021-05-21 22:04     ` xnsched_kick Marco Barletta

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