diff options
Diffstat (limited to 'sys/conf/NOTES')
| -rw-r--r-- | sys/conf/NOTES | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/sys/conf/NOTES b/sys/conf/NOTES index 8e2c447..88086cb 100644 --- a/sys/conf/NOTES +++ b/sys/conf/NOTES @@ -202,6 +202,12 @@ options SMP # Symmetric MultiProcessor Kernel # to disable it. options NO_ADAPTIVE_MUTEXES +# ADAPTIVE_RWLOCKS changes the behavior of reader/writer locks to spin +# if the thread that currently owns the rwlock is executing on another +# CPU. This behaviour is enabled by default, so this option can be used +# to disable it. +options NO_ADAPTIVE_RWLOCKS + # ADAPTIVE_GIANT causes the Giant lock to also be made adaptive when # running without NO_ADAPTIVE_MUTEXES. Normally, because Giant is assumed # to be held for extended periods, contention on Giant will cause a thread |
