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From: John Baldwin <jhb@FreeBSD.org>
Date: Wed, 4 Aug 2004 20:18:45 +0000 (UTC)
To: src-committers@FreeBSD.org, cvs-src@FreeBSD.org,
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X-FreeBSD-CVS-Branch: HEAD
Subject: cvs commit: src/sys/kern kern_mutex.c src/sys/sys mutex.h
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jhb         2004-08-04 20:18:45 UTC

  FreeBSD src repository

  Modified files:
    sys/kern             kern_mutex.c 
    sys/sys              mutex.h 
  Log:
  Cache the value of curthread in the _get_sleep_lock() and _get_spin_lock()
  macros and pass the value to the associated _mtx_*() functions to avoid
  more curthread dereferences in the function implementations.  This provided
  a very modest perf improvement in some benchmarks.
  
  Suggested by:   rwatson
  Tested by:      scottl
  
  Revision  Changes    Path
  1.147     +5 -4      src/sys/kern/kern_mutex.c
  1.73      +15 -9     src/sys/sys/mutex.h