On Mon, Jan 03, 2000 at 10:04:51AM -0500, Paul Koning wrote:
> >>>>> "David" == David Wolfe <[EMAIL PROTECTED]> writes:
>
> David> I've read Phil Wilshire's article "Real Time Linux PCI I/O" in
> David> the RTLinux Manual...
>
> I wonder if people have examined the worst case timing properties of
> PCI... assuming it has any. Lots of buses have no reasonable or
> defined worst case behavior.
System dependent. On most PC configurations it is below the range of
variation on other delays, however if you have a particularly agressive
bus user delays can be unbounded in practice. For example, 4 processor
PowerPC systems seem able to bring the bus to its knees.
>
> paul
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