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Preemption in Bitmap Scheduler
- From: Potdar Smita <sspotdar at yahoo dot com>
- To: ecos-discuss at ecos dot sourceware dot org
- Date: Wed, 21 Mar 2007 11:33:37 -0700 (PDT)
- Subject: [ECOS] Preemption in Bitmap Scheduler
I had a question about how preemption works in the
Bitmap scheduler of eCos. Since with this scheduler,
only one thread can exist at a particular priority
level, hence timeslicing is disabled. What about
preemption? Once a thread begins executing, does it
run to completion or can it be preempted by a higher
priority thread? Does eCos handle threads created
after the system starts working? If yes, how is this
done?
Thanks in advance.
Any help is greatly appreciated.
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