david@utzoo.UUCP (David Trueman) (04/18/84)
Iostat(1) has been changed to reflect our local configuration of disk drives,
and to calculate summary statistics differently. With no options, it prints
statistics for "Drive 0", "Drive 1" and "Controller". Under these categories,
"tpm" stands for transfers per minute, "msps" stands for milliseconds per
seek (but actually represents both seek time and rotational latency), and
"mspt" stands for milliseconds per transfer. The last is only meaningful
for the controller and "msps" is only meaningful for the drives.
The last four columns give percentages for time the system is in "user" mode,
"nice" mode, "system" mode and "idle". The exact definitions of these modes
is not certain at present.
--
David Trueman @ U of Toronto Zoology
{allegra,ihnp4,linus,decvax}!utzoo!daviddavid@utzoo.UUCP (David Trueman) (03/03/85)
I have installed a new version of iostat(1) with the `-b' option working
as advertised: it reports potentially useful information about use of
the kernel buffer cache.
--
David Trueman @ U of Toronto Zoology
{allegra,ihnp4,linus,decvax}!utzoo!david