diff options
| author | Jianyong Wu <wujianyong@hygon.cn> | 2026-05-13 23:39:12 +0300 |
|---|---|---|
| committer | Peter Zijlstra <peterz@infradead.org> | 2026-05-18 22:33:14 +0300 |
| commit | a2b4cf39d9d333bfeb9262dbaafe3d24d405a5c0 (patch) | |
| tree | 21d11853f2a2590d89c8c14812aed654fdc76d1e /include/linux | |
| parent | 067a3135814334a8ea7241faef364cc48c6340bc (diff) | |
| download | linux-a2b4cf39d9d333bfeb9262dbaafe3d24d405a5c0.tar.xz | |
sched/cache: Allow only 1 thread of the process to calculate the LLC occupancy
Scanning online CPUs to calculate the occupancy might be
time-consuming. Only allow 1 thread of the process to scan
the CPUs at the same time, which is similar to what
NUMA balance does in task_numa_work().
Signed-off-by: Jianyong Wu <wujianyong@hygon.cn>
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/5672b52e588b855b01e5a1a17822f7c6c7237a3d.1778703694.git.tim.c.chen@linux.intel.com
Diffstat (limited to 'include/linux')
| -rw-r--r-- | include/linux/sched.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/include/linux/sched.h b/include/linux/sched.h index d2010483cd77..6d883f109ba3 100644 --- a/include/linux/sched.h +++ b/include/linux/sched.h @@ -2423,6 +2423,7 @@ struct sched_cache_stat { struct sched_cache_time __percpu *pcpu_sched; raw_spinlock_t lock; unsigned long epoch; + unsigned long next_scan; int cpu; } ____cacheline_aligned_in_smp; |