diff options
| author | Tim Chen <tim.c.chen@linux.intel.com> | 2026-04-01 14:52:18 -0700 |
|---|---|---|
| committer | Peter Zijlstra <peterz@infradead.org> | 2026-04-09 15:49:49 +0200 |
| commit | 47d8696b95f7397fe7cad2d194d550ffe82efc15 (patch) | |
| tree | 4411dcfa3834b48c5d2d975685fbbc9041f818fb /init | |
| parent | b5ea300a17e37eada7a98561fbd34a3054578713 (diff) | |
| download | lwn-47d8696b95f7397fe7cad2d194d550ffe82efc15.tar.gz lwn-47d8696b95f7397fe7cad2d194d550ffe82efc15.zip | |
sched/cache: Assign preferred LLC ID to processes
With cache-aware scheduling enabled, each task is assigned a
preferred LLC ID. This allows quick identification of the LLC domain
where the task prefers to run, similar to numa_preferred_nid in
NUMA 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/f2ceecba5858680349ad4ce9303a2121f0bb7272.1775065312.git.tim.c.chen@linux.intel.com
Diffstat (limited to 'init')
| -rw-r--r-- | init/init_task.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/init/init_task.c b/init/init_task.c index b5f48ebdc2b6..5d90db4ff1f8 100644 --- a/init/init_task.c +++ b/init/init_task.c @@ -215,6 +215,9 @@ struct task_struct init_task __aligned(L1_CACHE_BYTES) = { .numa_group = NULL, .numa_faults = NULL, #endif +#ifdef CONFIG_SCHED_CACHE + .preferred_llc = -1, +#endif #if defined(CONFIG_KASAN_GENERIC) || defined(CONFIG_KASAN_SW_TAGS) .kasan_depth = 1, #endif |