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RE: Help: non pre-emptive kernel with priorities
- From: "Damian Slee" <damian at commtech dot com dot au>
- To: "Zhao Luo" <ZhaoL at TCTechnologies dot tc>,<ecos-discuss at ecos dot sourceware dot org>
- Date: Fri, 25 Feb 2005 11:51:15 +0800
- Subject: RE: [ECOS] Help: non pre-emptive kernel with priorities
I'm pretty sure you can turn off pre-emptive in the ecos config tool.
Just turn off tick box "Scheduler timeslicing"
-----Original Message-----
From: ecos-discuss-owner@ecos.sourceware.org
[mailto:ecos-discuss-owner@ecos.sourceware.org] On Behalf Of Zhao Luo
Sent: Friday, February 25, 2005 12:49 AM
To: ecos-discuss@ecos.sourceware.org
Subject: [ECOS] Help: non pre-emptive kernel with priorities
Hi, All,
I want to use a non-preemptive kernel with priorities. That is, during a
thread's running, even when a higher priority thread gets ready, the
higher priority thread still needs to wait until the current thread
yield/block. Is this possible with eCos? I read the reference manual; it
says the higher priority thread can AUTOMATICALLY preempt the low
priority threads.
So my question is:
1. Is there anything I can configure/hack in MLQ to change this
behavior? Is there such a patch somewhere?
2. Is there any other scheduler available for doing thing like that?
Thanks a lot.
Zhao
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