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| author | Juri Lelli <[email protected]> | 2025-06-27 11:51:14 +0000 |
|---|---|---|
| committer | Peter Zijlstra <[email protected]> | 2025-07-14 08:59:32 +0000 |
| commit | 9f239df55546ee1d28f0976130136ffd1cad0fd7 (patch) | |
| tree | f1c2e95b8bcd581353fe2134503b1a5638e4ccff /tools/perf/scripts/python | |
| parent | lib/smp_processor_id: Make migration check unconditional of SMP (diff) | |
| download | kernel-9f239df55546ee1d28f0976130136ffd1cad0fd7.tar.gz kernel-9f239df55546ee1d28f0976130136ffd1cad0fd7.zip | |
sched/deadline: Initialize dl_servers after SMP
dl-servers are currently initialized too early at boot when CPUs are not
fully up (only boot CPU is). This results in miscalculation of per
runqueue DEADLINE variables like extra_bw (which needs a stable CPU
count).
Move initialization of dl-servers later on after SMP has been
initialized and CPUs are all online, so that CPU count is stable and
DEADLINE variables can be computed correctly.
Fixes: d741f297bceaf ("sched/fair: Fair server interface")
Reported-by: Marcel Ziswiler <[email protected]>
Signed-off-by: Juri Lelli <[email protected]>
Signed-off-by: Peter Zijlstra (Intel) <[email protected]>
Acked-by: Waiman Long <[email protected]>
Tested-by: Marcel Ziswiler <[email protected]> # nuc & rock5b
Link: https://lore.kernel.org/r/[email protected]
Diffstat (limited to 'tools/perf/scripts/python')
0 files changed, 0 insertions, 0 deletions