cvs commit: src/sys/i386/conf GENERIC

[Robert Watson]

rwatson     2004-08-11 01:34:18 UTC

  FreeBSD src repository

  Modified files:
    sys/i386/conf        GENERIC 
  Log:
  Add ADAPTIVE_GIANT to GENERIC on i386, with the intent of making it
  a standard configuration similar to [NO_]ADAPTIVE_MUTEXES.  This
  feature causes Giant to be included in the set of mutexes adaptively
  spun on.  It appears to have a positive effect on performance on SMP
  across several workloads, including measurements of a 16% improvement
  on buildworld, and 30%+ improvement for MySQL using the supersmack
  benchmark with Giant over the network stack; a 6% improvement without
  Giant on the network stack (as a result of less giant contention).
  
  Revision  Changes    Path
  1.413     +1 -0      src/sys/i386/conf/GENERIC