diff options
| author | Thomas Richter <[email protected]> | 2024-01-26 13:32:03 +0100 |
|---|---|---|
| committer | Heiko Carstens <[email protected]> | 2024-02-20 14:37:32 +0100 |
| commit | 82cb9b618531109824eb8e25b6a3da28d33178ac (patch) | |
| tree | cc695ff65ef627df733195c6e2ba5de0a4388dac /tools/perf/scripts/python/bin | |
| parent | fe861b0c8d0693cb65fd45b7e8c756937b5182ae (diff) | |
s390/pai: simplify event start function for perf stat
When an event is started, read the current value of the
PAI counter. This value is saved in event::hw.prev_count.
When an event is stopped, this value is subtracted from the current
value read out at event stop time. The difference is the delta
of this counter.
Simplify the logic and read the event value every time the event is
started. This scheme is identical to other device drivers.
Signed-off-by: Thomas Richter <[email protected]>
Acked-by: Sumanth Korikkar <[email protected]>
Signed-off-by: Heiko Carstens <[email protected]>
Diffstat (limited to 'tools/perf/scripts/python/bin')
0 files changed, 0 insertions, 0 deletions