In doing some comparisons between monitoring tools TCAM seems to be reporting greater MAX CPU values than those seen in either SCOM or Splunk Windows Agents - up to a 2x difference at times.
This may be entirely possible based on polling interval, maybe TCAM is sampling much more frequently than the other tools and as a result is more sensitive? Just a guess... I'm hoping someone might confirm if this is the case?
Answer by Neal E. ·
~15 second polling interval would definitely explain it, thank you!
@Kris Z. Curious - does OneAgent also map user sessions to Citrix process table on XenApp like TCAM does? Is it a viable alternative to TCAM in that sense, or would we need both in this case?
Answer by Kris Z. ·
Yes, it's all about polling intervals, when exactly would the poll occur, and what would the poller do with results - how to calculate max, avg, etc. TCAM polls WMI counters every 15 sec (if my memory serves me right) and max is imply the highest value returned.
For infrastructure monitoring, consider using Dynatrace OneAgent instead of TCAM. It would tell you lots about vertical stack, CPU handling between threads and in virtual environment, processes, and so on. Spyglass vs. MRI :-)