Hi Paolo,
On 10/24/15 10:03 AM, Alexey Makhalov wrote:
What I figured out.
It happens in intersection of 3 features:
*irq time accounting
*stolen time accounting
*linux guest with tickless idle only (not fully tickless)
Looks like timer interrupts storm is happening during this benchmark
(with 2:1 cpu overcommit). irq time accounting gets crazy. Even 'top'
shows weird statistic: 50% hi, 50% st, ~0% user, spinning processes
use ~0% cpu - that is not correct.
If this is the desired behavior or something need to improve?
Regards,
Wanpeng Li
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