Experimental Physics and
Industrial Control System

Marty Kraimer <[email protected]> · Wed, 22 Apr 2009 06:00:05 -0400

[email protected] wrote:

Dear All;

I've recently come to notice that the real-time performance of Linux

kernel is incredibly improving (against my expectations).

http://www.osadl.org/Single-View.111+M5b96e97f67b.0.html

I'd like to know if the implementation of OSD-library is implemented in

such a manner that the kernel-level threads can reflect the priority

given by the user to the scheduling of epicsThreads?

In other words, can I benefit from the improvement of Linux kernel

without making any changes in EPICS source codes?

in file base/configure/CONFIG_SITE

change

USE_POSIX_THREAD_PRIORITY_SCHEDULING = NO

to

USE_POSIX_THREAD_PRIORITY_SCHEDULING = YES

Also you must start the IOC as root.

Marty

Experimental Physics and Industrial Control System

Experimental Physics and
Industrial Control System