sched/cache: Calculate the percpu sd task LLC preference

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Calculate the number of tasks' LLC preferences for each runqueue.
This statistic is computed during task enqueue and dequeue
operations, and is used by the cache-aware load balancing.

Co-developed-by: Chen Yu <yu.c.chen@intel.com>
Signed-off-by: Chen Yu <yu.c.chen@intel.com>
Signed-off-by: Tim Chen <tim.c.chen@linux.intel.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Link: https://patch.msgid.link/d15a64436d3acd19c5c53344c5e9d3d0b79b3233.1775065312.git.tim.c.chen@linux.intel.com

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Tim Chen 2026-04-01 14:52:21 -07:00 • committed by Peter Zijlstra

parent a8d0ca0b7f

commit 82c960aee3

1 changed files with 24 additions and 0 deletions

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kernel/sched/fair.c

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