sched/numa: initialize numa statistics when forking new task

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The child processes will inherit numa_pages_migrated and
total_numa_faults from the parent. It means even if there is no numa
fault happen on the child, the statistics in /proc/$pid of the child
process might show huge amount. This is a bit weird. Let's initialize
them when do fork.

Signed-off-by: Honglei Wang <wanghonglei@didichuxing.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Acked-by: Mel Gorman <mgorman@suse.de>
Link: https://lore.kernel.org/r/20220113133920.49900-1-wanghonglei@didichuxing.com

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Honglei Wang 2022-01-13 21:39:20 +08:00 • committed by Peter Zijlstra

parent 28c988c3ec

commit 12bf8a7eb8

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kernel/sched/fair.c

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