by the way, you might want to apply my patch for inlining spl calls on mips
if you want to get rid of even more noise in gprof output.

ftp://ftp.netbsd.org/pub/NetBSD/misc/chs/mips-spl/diff.mips-spl.4

what this does is make it easier to see what functions are holding
interrupts blocked for a long time by having the time for the
section with interrupts blocked show up in the function that calls
splx() rather than in "_splset_noprof" or some other such nonsense.

-Chuck