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| author | Hongyan Xia <hongyan.xia@transsion.com> | 2026-06-05 09:43:39 +0000 |
|---|---|---|
| committer | Peter Zijlstra <peterz@infradead.org> | 2026-06-09 10:28:08 +0200 |
| commit | 29922fdfc2a4008d66418bedd0ebf5038fc54efa (patch) | |
| tree | 212d6ad6c8785c401fc9aafd13b029d9bb1932bd /scripts | |
| parent | f666241e6bd5d9a494beca982e1953208dce531c (diff) | |
sched/fair: Fix cpu_util runnable_avg arithmetic
If we take runnable_avg in max(runnable_avg, util_avg) in cpu_util(), we
should then add or subtract task runnable_avg, but the arithmetic below
is still with task util_avg. This mixes runnable_avg with util_avg which
is incorrect.
Fix by always doing arithmetic with runnable_avg and only take
max(runnable_avg, util_avg) at the last step.
Fixes: 7d0583cf9ec7 ("sched/fair, cpufreq: Introduce 'runnable boosting'")
Signed-off-by: Hongyan Xia <hongyan.xia@transsion.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Reviewed-by: Vincent Guittot <vincent.guittot@linaro.org>
Link: https://patch.msgid.link/20260605094318.37931-1-hongyan.xia@transsion.com
Diffstat (limited to 'scripts')
0 files changed, 0 insertions, 0 deletions