Losing interrupts?
Michael Grenier
mike at cimcor.mn.org
Thu Oct 6 12:42:09 AEST 1988
>From article <1905 at van-bc.UUCP>, by sl at van-bc.UUCP (pri=-10 Stuart Lynne):
! For example one of the basic differences between SCO 386 and the SysV 386
! products is the priority of the interrupts.
!
! SCO SysV
! SPL7 Serial SPL7 Clock
! SPL6 Clock SPLTTY Serial
!
! SysV allows the clock interrupt to take over the machine at a higher
! priority level than (for example) the serial interrupts.
I don't think so. Microport has the serial interrupts at SPL7 (the
highest) and the clock at the lowest (which is probably why the
clock loses time!). In fact, I doubt Microport is losing that
many interrupts on the serial lines until the entire system
gets too loaded which doesn't take that much with the overhead
being incurred.
-Mike Grenier
mike at cimcor.mn.org
uunet!rosevax!cimcor!mike
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