diff options
Diffstat (limited to 'sys/kern/kern_sched.c')
| -rw-r--r-- | sys/kern/kern_sched.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/sys/kern/kern_sched.c b/sys/kern/kern_sched.c index 0aebf5b..b7e6af5 100644 --- a/sys/kern/kern_sched.c +++ b/sys/kern/kern_sched.c @@ -58,7 +58,13 @@ static size_t nthread = 0; /* * Thread queue lock - all operations to `td_queue' * must be done with this lock acquired. + * + * This lock is aligned on a cache line boundary to ensure + * it has its own cacheline to reduce contention. This is + * because it is constantly acquired and released on every + * processor. */ +__cacheline_aligned static struct spinlock tdq_lock = {0}; /* |