From: "Dmitry A. Kazakov" <mailbox@dmitry-kazakov.de>
Subject: Re: non-preemptive tasking on GNAT 2020 Windows 10 multicore AMD
Date: Sat, 12 Jun 2021 15:11:10 +0200 [thread overview]
Message-ID: <sa2bpc$it8$1@gioia.aioe.org> (raw)
In-Reply-To: c6169572-25bc-4db7-a50d-c6c8575069a4n@googlegroups.com
On 2021-06-12 14:51, Dan Winslow wrote:
> I am trying to achieve true non-preemptive tasking using gnat 2020 CE on a windows 10 environment. I have placed this in the gnat.adc file:
[...]
> This happens whether or not I have the scheduling pragma in gnat.adc. Does Windows just not respect processor assignment and/or the scheduling pragma?
AFAIK, your tasks, if mapped onto threads, must have HIGH_PRIORITY_CLASS
in order to not be preempted.
https://docs.microsoft.com/en-us/windows/win32/procthread/scheduling-priorities
Did you try to change task priorities? I would suggest that and also
looking into the process' threads while it is running to see the effect
of the pragmas on the Windows side.
--
Regards,
Dmitry A. Kazakov
http://www.dmitry-kazakov.de
next prev parent reply other threads:[~2021-06-12 13:11 UTC|newest]
Thread overview: 32+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-06-12 12:51 non-preemptive tasking on GNAT 2020 Windows 10 multicore AMD Dan Winslow
2021-06-12 13:11 ` Dmitry A. Kazakov [this message]
2021-06-12 15:43 ` AdaMagica
2021-06-12 15:57 ` Dmitry A. Kazakov
2021-06-12 16:05 ` AdaMagica
2021-06-12 16:30 ` Dmitry A. Kazakov
2021-06-12 20:56 ` Dan Winslow
2021-06-12 22:21 ` Dan Winslow
2021-06-13 1:24 ` Dennis Lee Bieber
2021-06-13 1:55 ` Dennis Lee Bieber
2021-06-13 10:24 ` J-P. Rosen
2021-06-13 12:11 ` Dan Winslow
2021-06-13 6:20 ` Randy Brukardt
2021-06-13 8:04 ` darek
2021-06-13 9:13 ` Dmitry A. Kazakov
2021-06-13 21:43 ` darek
2021-06-13 12:06 ` Dan Winslow
2021-06-13 13:16 ` Jeffrey R. Carter
2021-06-13 16:43 ` Dan Winslow
2021-06-13 16:46 ` Dan Winslow
2021-06-13 16:50 ` Dan Winslow
2021-06-13 17:44 ` Jeffrey R. Carter
2021-06-15 0:41 ` Dan Winslow
2021-06-16 0:10 ` Dennis Lee Bieber
2021-06-14 2:09 ` Dennis Lee Bieber
2021-06-12 16:03 ` AdaMagica
2021-06-12 18:02 ` Niklas Holsti
2021-06-12 20:50 ` Dan Winslow
2021-06-13 17:41 ` AdaMagica
2021-06-12 17:18 ` Dan Winslow
2021-06-12 17:21 ` Dan Winslow
2021-06-12 18:06 ` Dennis Lee Bieber
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