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From: Kip Macy <kmacy@FreeBSD.org>
Date: Mon, 26 Feb 2007 08:26:44 +0000 (UTC)
To: src-committers@FreeBSD.org, cvs-src@FreeBSD.org, cvs-all@FreeBSD.org
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Cc: 
Subject: cvs commit: src/sys/sys lock_profile.h mutex.h rwlock.h
 src/sys/kern kern_lock.c kern_mutex.c kern_rwlock.c kern_sx.c
 sched_ule.c subr_lock.c
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kmacy       2007-02-26 08:26:44 UTC

  FreeBSD src repository

  Modified files:
    sys/sys              lock_profile.h mutex.h rwlock.h 
    sys/kern             kern_lock.c kern_mutex.c kern_rwlock.c 
                         kern_sx.c sched_ule.c subr_lock.c 
  Log:
  general LOCK_PROFILING cleanup
  
  - only collect timestamps when a lock is contested - this reduces the overhead
    of collecting profiles from 20x to 5x
  
  - remove unused function from subr_lock.c
  
  - generalize cnt_hold and cnt_lock statistics to be kept for all locks
  
  - NOTE: rwlock profiling generates invalid statistics (and most likely always has)
    someone familiar with that should review
  
  Revision  Changes    Path
  1.104     +16 -13    src/sys/kern/kern_lock.c
  1.180     +8 -21     src/sys/kern/kern_mutex.c
  1.13      +3 -11     src/sys/kern/kern_rwlock.c
  1.33      +6 -10     src/sys/kern/kern_sx.c
  1.188     +1 -1      src/sys/kern/sched_ule.c
  1.13      +6 -55     src/sys/kern/subr_lock.c
  1.9       +11 -32    src/sys/sys/lock_profile.h
  1.88      +13 -8     src/sys/sys/mutex.h
  1.6       +8 -3      src/sys/sys/rwlock.h