i have Ubuntu server with 2 processors.
top command show that mysql eats up to 195%.
sar shows the following:
08:30:59 AM CPU %user %nice %system %iowait %steal %idle 08:31:00 AM all 75.12 0.00 0.00 0.00 22.89 1.99
I the following questions:
- Could please someone explain what does
I found the following description in manual, but can hardly understand what does it means:
%steal Percentage of time spent in involuntary wait by the virtual CPU or CPUs while the hypervisor was servicing another virtual processor.
- CPU usage of process computed as "%user" + "%steal"?
I understand that the following questions are general and answers can depends on many factors but i need just some guidelines: what to do, what to find out and so on. Any docs, links are appreciated ( I didn't find anything very useful. Just general information)
Is "%steal" value is fine?
What is the edge value for CPU usage when I should worry about it?
ps. not Linux DBA just dev.