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Revert "sched/fair: Ensure _sum and _avg values stay consistent"

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This reverts commit 20285dc271, which
causes serious performance downgrade because the calculated cpu
frequency will be much lower than before due to change of cpu util.

Bug: 205915994
Test: build pass
Change-Id: I68dced7a58547a3324fcfeebea6c02bb30c4182d
Signed-off-by: Rick Yiu <rickyiu@google.com>
This commit is contained in:
Rick Yiu 2021-11-16 12:25:03 +08:00 • committed by Todd Kjos
commit 8630facf34
1 changed files with 3 additions and 3 deletions
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6
kernel/sched/fair.c
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@ -3682,15 +3682,15 @@ update_cfs_rq_load_avg(u64 now, struct cfs_rq *cfs_rq)
r = removed_load;
sub_positive(&sa->load_avg, r);
sa->load_sum = sa->load_avg * divider;
sub_positive(&sa->load_sum, r * divider);
r = removed_util;
sub_positive(&sa->util_avg, r);
sa->util_sum = sa->util_avg * divider;
sub_positive(&sa->util_sum, r * divider);
r = removed_runnable;
sub_positive(&sa->runnable_avg, r);
sa->runnable_sum = sa->runnable_avg * divider;
sub_positive(&sa->runnable_sum, r * divider);
/*
* removed_runnable is the unweighted version of removed_load so we