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<== Date ==> <== Thread ==>

Subject: Re: base max thread priority
From: Eric Norum <eric.norum@usask.ca>
To: Jeff Hill <johill@lanl.gov>
Cc: 'Marty Kraimer' <mrk@aps.anl.gov>, 'Till Straumann' <strauman@SLAC.Stanford.EDU>, "'Johnson, Andrew N.'" <anj@aps.anl.gov>
Date: Wed, 27 Nov 2002 10:07:19 -0600

On Wednesday, November 27, 2002, at 09:44  AM, Jeff Hill wrote:


It seems that you could discuss that, at least on RTEMS, the scan
threads might run above the RTEMS network threads in priority because
the EPICS scan threads do not call directly into the network stack, and
their periodicity should perhaps not be disturbed by network loading.


Good point.
This would make the scan threads applicable to harder real-time applications -- assuming that the iocsh thread priority was reduced, too.
Of course the issue of starvation of network/iocsh threads again arises.

This is tricky stuff....

--
Eric Norum <eric.norum@usask.ca>
Department of Electrical Engineering
University of Saskatchewan
Saskatoon, Canada.
Phone: (306) 966-5394   FAX:   (306) 966-5407


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