Reading Sun 3 timer register within Kernel device driver
Andrew Harker
larch!anh at relay.eu.net
Sat Nov 18 01:36:09 AEST 1989
I have a problem relating to SUN OS3.5 kernel device drivers. I want to
measure the performance of the driver by calling a routine at certain
points in the driver which records a timer value in a buffer somewhere.
Outside the kernel, the obvious answer is to use gettimeofday(), but this
is no good inside the device driver.
Is there a way of accessing the SUN's timer register from within the
kernel? Is there an easier way?
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