Experimental Physics and
Industrial Control System
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| <== Date ==> | <== Thread ==> |
|---|
| Subject: | iocStats CPU time seems wrong |
| From: | Mark Rivers via Tech-talk <tech-talk at aps.anl.gov> |
| To: | tech-talk <tech-talk at aps.anl.gov> |
| Date: | Sun, 31 May 2026 18:28:23 +0000 |
|
Folks,
I have an areaDetector IOC running spinnakerApp that is using ~27% of CPU on Linux according to "top". I have attached a screenshot of "top".
The IOC is running iocStats. I am using the current master branch of iocStats. The problem is that iocStats reports IOC_CPU_LOAD is 0.8% (see attached screenshot). The label on the OPI screen says that means % of a single CPU, which is what "top" is also
showing.
Why are these so different? Is IOC_CPU_LOAD really not in units of one CPU, but in units of all CPUs?
Thanks,
Mark
|
Attachment:
top_output.png
Description: top_output.png
Attachment:
iocStats_output.png
Description: iocStats_output.png
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