From 3abcd9269ff169f6e75f082a958c364860cf910d Mon Sep 17 00:00:00 2001 From: Abhijeet Dharmapurikar Date: Fri, 26 Aug 2022 16:31:59 -0700 Subject: [PATCH] sched/walt: disable cpu packing when current freq is high This in addition to other criteria already present in the code. Change-Id: Ief3a21eb159bed8eb724427c0acca327a3cbb272 Signed-off-by: Abhijeet Dharmapurikar --- kernel/sched/walt/walt.h | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/kernel/sched/walt/walt.h b/kernel/sched/walt/walt.h index 6b3fd25b2112..94404dc16078 100644 --- a/kernel/sched/walt/walt.h +++ b/kernel/sched/walt/walt.h @@ -1048,6 +1048,10 @@ static inline int walt_find_and_choose_cluster_packing_cpu(int start_cpu, struct if (task_util(p) >= sysctl_sched_idle_enough) return -1; + /* don't pack if running at a freq higher than 43.9pct of its fmax */ + if (arch_scale_freq_capacity(packing_cpu) > 450) + return -1; + /* the packing cpu can be used, so pack! */ return packing_cpu; }