> yamt@mwd.biglobe.ne.jp (YAMAMOTO Takashi) wrote:
> > i don't know any ready-to-use style tools.
> > when writing priocscan, i've kludged some kernel code to measure
> > min/max/avg latencies for each i/o priorities.
> What kind of code?

record timestamps on some events and update statistics on i/o completions.
(i'm not sure what you are asking.)

YAMAMOTO Takashi