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| author | behlendo <behlendo@7e1ea52c-4ff2-0310-8f11-9dd32ca42a1c> | 2008-05-15 17:32:41 +0000 |
|---|---|---|
| committer | behlendo <behlendo@7e1ea52c-4ff2-0310-8f11-9dd32ca42a1c> | 2008-05-15 17:32:41 +0000 |
| commit | 56f924533023e39edfda09cf1a9c47b4abfe57c7 (patch) | |
| tree | 08e84eee0b2075d05388caf6131b2f6b69e3f3fd | |
| parent | 4efd41189af62958f2aa5cf48941dd718d563d11 (diff) | |
Disable adaptive mutexs by default (always sleep), and while
I'm at it add a module option for easy tuning.
git-svn-id: https://outreach.scidac.gov/svn/spl/trunk@109 7e1ea52c-4ff2-0310-8f11-9dd32ca42a1c
| -rw-r--r-- | modules/spl/spl-mutex.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/modules/spl/spl-mutex.c b/modules/spl/spl-mutex.c index 8ca1286e9..7fce77e8e 100644 --- a/modules/spl/spl-mutex.c +++ b/modules/spl/spl-mutex.c @@ -25,7 +25,7 @@ * -1: Spin until aquired or holder yeilds without dropping lock * 1-MAX_INT: Spin for N attempts before sleeping for lock */ -int mutex_spin_max = 100; +int mutex_spin_max = 0; #ifdef DEBUG_MUTEX int mutex_stats[MUTEX_STATS_SIZE] = { 0 }; @@ -272,3 +272,5 @@ spl_mutex_fini(void) EXIT; } +module_param(mutex_spin_max, int, 0644); +MODULE_PARM_DESC(mutex_spin_max, "Spin a maximum of N times to aquire lock"); |