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<== Date ==> <== Thread ==>
Subject: Utilities for EPICS on Multi-Core Linux
From: Ralph Lange <[email protected]>
To: EPICS Tech-Talk <[email protected]>
Date: Fri, 23 Nov 2012 20:48:33 +0100
MCoreUtils - Utilities for EPICS on Multi-Core Linux

I recently started working on a collection of useful stuff for running IOCs on multi-core (RT or not) Linux architectures. (*)

The first two modules are now available on SourceForge [1]:

Real-time threadShow routines
Enhanced threadShow functions that print LWP ID, scheduling policy, and CPU affinity.

Rule-based setting of real-time properties
Pattern matching engine that allows to set real-time properties of EPICS threads (scheduling policy, priority, and CPU affinity) by regular _expression_ matching on thread names. Rules can be set in a config file or from the iocShell, and will be applied to any thread started through the libCom/OSI API of EPICS Base. This allows to restrict the complete IOC onto a subset of CPUs, dedicate CPUs to specific (driver) threads, fine-tune policies and priorities, etc.

MCoreUtils need EPICS Base 3.15.0.1 or later, on a Linux platform.

This project is in an early stage.
I know that more and more EPICS sites are using this family of platforms and have to cope with similar things, so I would like to invite everybody to step forward with ideas and suggestions (and code!). I hope we can manage to minimize parallel developments, and combine efforts for a better real-time behaviour and performance of EPICS.

Cheers,
~Ralph

[1] http://epics.sourceforge.net/mcoreutils/
(*) Work supported by ITER International Organization and Helmholtz-Zentrum Berlin / BESSY II
Replies:
Re: Utilities for EPICS on Multi-Core Linux Jack Smith
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