cvs commit: src/sys/conf NOTES options src/sys/kern kern_mutex.c src/sys/amd64/conf GENERIC

[Scott Long]

scottl      2004-07-18 15:59:03 UTC

  FreeBSD src repository

  Modified files:
    sys/conf             NOTES options 
    sys/kern             kern_mutex.c 
    sys/amd64/conf       GENERIC 
  Log:
  Enable ADAPTIVE_MUTEXES by default by changing the sense of the option to
  NO_ADAPTIVE_MUTEXES.  This option has been enabled by default on amd64 for
  quite some time, and has been extensively tested on i386 and sparc64.  It
  shows measurable performance gains in many circumstances, and few negative
  effects.  It would be nice in t he future if adaptive mutexes actually went
  to sleep after a certain amount of spinning, but that will require quite a
  bit more testing.
  
  Revision  Changes    Path
  1.415     +0 -1      src/sys/amd64/conf/GENERIC
  1.1248    +3 -2      src/sys/conf/NOTES
  1.465     +1 -1      src/sys/conf/options
  1.142     +3 -3      src/sys/kern/kern_mutex.c