Experimental Physics and
Industrial Control System

Eric Norum <[email protected]> · Mon, 2 Dec 2002 11:05:41 -0600

On Monday, December 2, 2002, at 10:48  AM, Marty Kraimer wrote:

I will add the following to epicsThread.h

static const unsigned epicsThreadPriorityIocsh = 91;
static const unsigned epicsThreadPriorityBaseMax = 91;

Any objections?

Maybe  :-)

Eric Norum wrote:

and I think Till would agree, that the IOC shell should also run at a

 priority less than the scan tasks to ensure the determinism of the

scan tasks.

I don't like the idea of a (l)user disrupting time-critical scan tasks

by typing some long-running command.

I'd rather have IOC shell run just below the scan task priority.

Booting tornado II gives

ExcTask _excTask fe80f4 0 PEND 6cd04 fe8054

0 0

tLogTask _logTask fe57cc 0 PEND 6cd04 fe5728

 0 0

tShell _shell ed9540 1 READY 2cfc4 ed91e8

1c0001 0

tTelnetd _telnetd edfb38 2 PEND 253ea edfa48

 0 0

tNetTask _netTask f57408 50 PEND 253ea f573b0

 0 0

tPortmapd _portmapd ede5f8 100 PEND 253ea ede4b0

16 0

Thus to ensure really good real time performance the priority of all

of the above should be changed.

Indeed.

--
Eric Norum <[email protected]>
Department of Electrical Engineering
University of Saskatchewan
Saskatoon, Canada.
Phone: (306) 966-5394   FAX:   (306) 966-5407

Experimental Physics and Industrial Control System

Experimental Physics and
Industrial Control System