diff options
Diffstat (limited to 'share')
| -rw-r--r-- | share/man/man9/LOCK_PROFILING.9 | 36 |
1 files changed, 9 insertions, 27 deletions
diff --git a/share/man/man9/LOCK_PROFILING.9 b/share/man/man9/LOCK_PROFILING.9 index 94b2246..d64b328 100644 --- a/share/man/man9/LOCK_PROFILING.9 +++ b/share/man/man9/LOCK_PROFILING.9 @@ -29,7 +29,7 @@ .\" .\" $FreeBSD$ .\" -.Dd November 11, 2006 +.Dd March 7, 2012 .Dt LOCK_PROFILING 9 .Os .Sh NAME @@ -82,32 +82,6 @@ Enable or disable the lock profiling code. This defaults to 0 (off). .It Va debug.lock.prof.reset Reset the current lock profiling buffers. -.It Va debug.lock.prof.acquisitions -The total number of lock acquisitions recorded. -.It Va debug.lock.prof.records -The total number of acquisition points recorded. -Note that only active acquisition points (i.e., points that have been -reached at least once) are counted. -.It Va debug.lock.prof.maxrecords -The maximum number of acquisition points the profiling code is capable -of monitoring. -Since it would not be possible to call -.Xr malloc 9 -from within the lock profiling code, this is a static limit. -The number of records can be changed with the -.Dv LPROF_BUFFERS -kernel option. -.It Va debug.lock.prof.rejected -The number of acquisition points that were ignored after the table -filled up. -.It Va debug.lock.prof.hashsize -The size of the hash table used to map acquisition points to -statistics records. -The hash size can be changed with the -.Dv LPROF_HASH_SIZE -kernel option. -.It Va debug.lock.prof.collisions -The number of hash collisions in the acquisition point hash table. .It Va debug.lock.prof.stats The actual profiling statistics in plain text. The columns are as follows, from left to right: @@ -138,6 +112,14 @@ reached. The name of the acquisition point, derived from the source file name and line number, followed by the name of the lock in parentheses. .El +.It Va debug.lock.prof.rejected +The number of acquisition points that were ignored after the table +filled up. +.It Va debug.lock.prof.skipspin +Disable or enable the lock profiling code for the spin locks. +This defaults to 0 (do profiling for the spin locks). +.It Va debug.lock.prof.skipcount +Do sampling approximately every N lock acquisitions. .El .Sh SEE ALSO .Xr sysctl 8 , |
