s390/hiperdispatch: Add hiperdispatch debug counters

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Add three counters to follow and understand hiperdispatch behavior;
* adjustment_count (amount of capacity adjustments triggered)
* greedy_time_ms (time spent while all cpus are on high capacity)
* conservative_time_ms (time spent while only entitled cpus are on high
  capacity)

These counters can be found under /sys/kernel/debug/s390/hiperdispatch/
Time counters are in <msec> format and only cover the time spent
when hiperdispatch is active.

Acked-by: Vasily Gorbik <gor@linux.ibm.com>
Signed-off-by: Mete Durlu <meted@linux.ibm.com>
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>

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Mete Durlu 2024-08-12 13:39:39 +02:00 • committed by Vasily Gorbik

parent 441cc6f5b6

commit ea31f1c6b4

1 changed files with 77 additions and 0 deletions

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arch/s390/kernel/hiperdispatch.c

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