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(parent: f16b481) | patch
Add some basic KTR tracing to busdma on i386. This is likely not
authorRobert Watson <rwatson@FreeBSD.org>
Sat, 23 Oct 2004 10:34:27 +0000 (10:34 +0000)
committerRobert Watson <rwatson@FreeBSD.org>
Sat, 23 Oct 2004 10:34:27 +0000 (10:34 +0000)
commit16aebf571f8c537f6fc81a918086780d4e24a402
treebc9a03048ad38cb1845638305cfb6566fe33e889tree | snapshot
parentf16b4811d2b1dff2b960a44cc13d61947911b4f5commit | diff
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.
sys/i386/i386/busdma_machdep.c diff | blob | history
sys/sys/ktr.h diff | blob | history
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