On 11/01/18 19:13, Alvin Starr via talk wrote:
Its a paravirt VM. The steal time is much less than 1% bouncing between 0 and 0.2
Yes it is possible that other VM's are stealing resources leaving less compute power for my instance but I have had extremely stable cpu utilization going back something like 2 months. But the step is significant within a matter of a day it went from 2.5% utilization to 17.4% utilization in 2 steps.
My image is held up by the moderator so I posted here ( https://owncloud.netvel.net/s/G3HGQUEb5saLBSn )if your interested.
The timing is suspect and I had another server that sees periodic work and it completely collapsed because of the change in performance at just the same time.
A bit of searching shows that others are complaining about the same problem.
That does look like a substantial hit. What happens if you try the workload on a new VM? Roll the dice until you get lucky maybe?