Experimental Physics and
Industrial Control System

Phillip Sorensen <[email protected]> · Thu, 02 Oct 2008 13:14:57 -0400

Allison, Stephanie wrote:

Hello,
I'm working on an OSI version of devVxStats (IOC/CPU resource monitor), starting with the one from SNS, renaming it devStats, using the same technique that Marty Kraimer used for making OSI devLib (devStats, os/vxWorks/devStatsOSD, os/RTEMS/devStatsOSD, os/default/devStatsOSD). Till Straumann has provided the RTEMS hooks and I'm breaking out the existing vxWorks part and putting together a barebones default. It makes devStats a lot more maintainable without all the ifdef's for different OSs and differences in BSPs and OS versions are shoved down to the lower directories. 
Three questions:

(1) Has anybody done this already?

(2) Is the name "devStats" OK? Would devCPUstats or devIOCstats be better? I'm keeping the "VX stats" DTYP.

(3) Has anybody done any work to make applicable parts of devVxStats work for linux? In particular, the max number of FDs and allocated or free FDs for the process. And a soft IOC's own %CPU would be nice if that is somehow available from C. Otherwise, there are probably external soft IOC monitoring tools that provide this kind of information so it's probably not worth the effort.

I have some test code written to read/calculate CPU%, MEM, and FD usage
 for linux from the /proc directory.  It was designed to be close to
the APS vxStats.

Phil Sorensen
CHESS

Experimental Physics and Industrial Control System

Experimental Physics and
Industrial Control System