Maximal latency can be now specified multiple ways:
- directly in usec (this is the same as before), e.g. for 10 us:
force_latency = 10
- as an ID of maximal cstate allowed, e.g. for the kernel state1:
force_latency = cstate.id:1
- as a name (case sensitive) of maximal cstate allowed, e.g. for the state named C1:
force_latency = cstate.name:C1
It is also possible to specify multiple fallback values separated by '|', e.g.:
force_latency = cstate.name:C6|cstate.id:4|10
This will try to obtain latency of cstate named C6, if it fails (e.g.
there is no such cstate), it will try kernel state4 and if it also fails
it finally fallbacks to 10 us.
This commit also changes force_latency settings of latency-performance
profile to:
force_latency=cstate.id:1|1
I.e. it tries kernel state1 and fallbacks to 1 us.
Resolves: rhbz#1737628
Signed-off-by: Jaroslav Škarvada <jskarvad@redhat.com>
0ec40e0360