diff options
| author | Mateusz Guzik <mjguzik@gmail.com> | 2026-01-20 21:48:20 +0100 |
|---|---|---|
| committer | Christian Brauner <brauner@kernel.org> | 2026-02-10 11:39:30 +0100 |
| commit | 03aef0602f22f30aab0e42e7f3169b0a5920c461 (patch) | |
| tree | 6efcd58a0ca621360f756e90f216927813926193 /tools/perf/scripts/python/bin/task-analyzer-report | |
| parent | 802182490445f6bcf5de0e0518fb967c2afb6da1 (diff) | |
pid: reorder fields in pid_namespace to reduce false sharing
alloc_pid() loads pid_cachep, level and pid_max prior to taking the
lock.
It dirties idr and pid_allocated with the lock.
Some of these fields share the cacheline as is, split them up.
No change in the size of the struct.
Signed-off-by: Mateusz Guzik <mjguzik@gmail.com>
Link: https://patch.msgid.link/20260120204820.1497002-1-mjguzik@gmail.com
Reviewed-by: Jan Kara <jack@suse.cz>
Signed-off-by: Christian Brauner <brauner@kernel.org>
Diffstat (limited to 'tools/perf/scripts/python/bin/task-analyzer-report')
0 files changed, 0 insertions, 0 deletions