On some ESXi servers I see an activity peak (CPU at 100%) at some given times, i.e. 11:00, 14:00, 17:00 even during the week-end.
I can't exclude some VM related issues, but I need to perform a a more in-depth analysis at the host side.
- Is there any host related task that can cause a CPU overload, i.e. any internal housekeeping task?
- If so, how can I monitor it?
- How can I identify any single guest VM causing the CPU overload?
- How can I trace the performance issues occurring during the week-end in order to analyze them on Monday?
Is there any best practice I can follow to troubleshoot the performance issue?
Regards
marius