Experimental Physics and
Industrial Control System

Ralph Lange <[email protected]> · Thu, 15 Aug 2013 12:23:34 +0200

On 15.08.2013 11:04, [email protected] wrote:

I have found debugging the performance of areaDetector modules hampered by the fact that epicsThreadShow(All) displays opaque pthread_t pointers - which are less than useless information, rather than Linux thread PID's.

Attached is a patch to R3.14.12.3, which (for Linux only) changes epicsThreadShow(All) so that it displays PID's, not pthread_t's. This means you can run epicsThreadShowAll and easily correlate thread CPU usage with the output of top -H.

My only concern is that it may offend some people who don't like the fact that the POSIX osdThread.c file is not strictly POSIX anymore. However, I feel this is far outweighed by increasing the utility of epicsThreadShow(All).

Note that the epicsThreadShow functions for Linux already have such a

change for EPICS 3.15 - merged in the trunk, appearing in the next

released version.

In addition, EPICS thread names are copied into the command string

inside the Linux thread structure, so that the top output shows proper

EPICS thread names.

Cheers,
~Ralph

Experimental Physics and Industrial Control System

Experimental Physics and
Industrial Control System