cvs commit: src/sys/sys ktr.h src/sys/i386/i386 busdma_machdep.c

[Robert Watson]

rwatson     2004-10-23 10:34:27 UTC

  FreeBSD src repository

  Modified files:
    sys/sys              ktr.h 
    sys/i386/i386        busdma_machdep.c 
  Log:
  Add some basic KTR tracing to busdma on i386.  This is likely not
  the final set of traces -- someone with more busdma background
  will probably want to review and expand this, as well as port to
  other platforms.  This tracing is sufficient to identify key
  busdma events on i386, and in particular to draw attention to
  bounce buffering events that may have a substantial performance
  impact.
  
  Revision  Changes    Path
  1.61      +60 -10    src/sys/i386/i386/busdma_machdep.c
  1.24      +2 -1      src/sys/sys/ktr.h