[CentOS] Increase CPU usage on HV after upgrade (7.2 -> 7.3)

Hello m,

Thursday, January 19, 2017, 5:17:48 PM, you wrote:

>>> In the mean time, if you have not disabled it, you should find some
>>> collected statistics from sysstat/sar.
>>> Look at the sarXX files under /var/log/sa. They should be kept for 30
>>> day
>>> by default in CentOS 7.
>>
>> Unfortunately, on that host such statistics is disabled.
> <snip>
> That's surprising. That's such an old, low-level daemon/reporting tool....
> Was it disabled deliberately? And why?

Heritage from the old admin to me.