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DescriptionMichal Skrivanek
2018-04-19 07:37:50 UTC
Current virtual-host profile doesn't match what RHV is using, based on Performance team recommendation we can update the profile to better values, and that would allow RHV to use the profile without further modifications
See https://bugzilla.redhat.com/show_bug.cgi?id=1564834#c8
Sanjay, do you think you can provide the final recommendation / set of changes?
I think after some back and forth, we agreed on changing the forced-latency to 70, which will pin the cstate to 3, which will prevent the host from going into deeper c-states and improve performance of VMs even when the host is lightly loaded. All other settings in the current virtual-host profile are fine.
Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.
For information on the advisory, and where to find the updated
files, follow the link below.
If the solution does not work for you, open a new bug report.
https://access.redhat.com/errata/RHBA-2019:2201