In reply:
> This is cross-posted to both linux-kernel and freebsd-hackers, please
> set your replies properly.
>
> > I found the following by accident playing with PVM. If you start the
> > 'gexample' from the examples directory with dimension=10000 and no of
> > tasks=32 on one machine, it becomes almost immediately completely un-
> > usable and begins with heavy swapping. Considering how much memory
> > would be necessary for this computation before starting it would have
> > avoided the trouble.
well, there are other ways to make a system slow to a crawl....
a good preventative measure is to never give shell accounts unless
everyone is accountable.
#!/bin/csh
/usr/games/primes 1 4294967295 >&/dev/null&
/usr/games/primes 1 4294967295 >&/dev/null&
/usr/games/primes 1 4294967295 >&/dev/null&
/usr/games/primes 1 4294967295 >&/dev/null&
/usr/games/primes 1 4294967295 >&/dev/null&
/usr/games/primes 1 4294967295 >&/dev/null&
/usr/games/primes 1 4294967295 >&/dev/null&
/usr/games/primes 1 4294967295 >&/dev/null&
/usr/games/primes 1 4294967295 >&/dev/null&
/usr/games/primes 1 4294967295 >&/dev/null&
/usr/games/primes 1 4294967295 >&/dev/null&
/usr/games/primes 1 4294967295 >&/dev/null&
/usr/games/primes 1 4294967295 >&/dev/null&
/usr/games/primes 1 4294967295 >&/dev/null&
/usr/games/primes 1 4294967295 >&/dev/null&
/usr/games/primes 1 4294967295 >&/dev/null&
/usr/games/primes 1 4294967295 >&/dev/null&
/usr/games/primes 1 4294967295 >&/dev/null&
/usr/games/primes 1 4294967295 >&/dev/null&
/usr/games/primes 1 4294967295 >&/dev/null&
/usr/games/primes 1 4294967295 >&/dev/null&
/usr/games/primes 1 4294967295 >&/dev/null&
/usr/games/primes 1 4294967295 >&/dev/null&
/usr/games/primes 1 4294967295 >&/dev/null&
/usr/games/primes 1 4294967295 >&/dev/null&
/usr/games/primes 1 4294967295 >&/dev/null&
/usr/games/primes 1 4294967295 >&/dev/null&
/usr/games/primes 1 4294967295 >&/dev/null&
/usr/games/primes 1 4294967295 >&/dev/null&
/usr/games/primes 1 4294967295 >&/dev/null&
/usr/games/primes 1 4294967295 >&/dev/null&
/usr/games/primes 1 4294967295 >&/dev/null&
/usr/games/primes 1 4294967295 >&/dev/null&
/usr/games/primes 1 4294967295 >&/dev/null&
/usr/games/primes 1 4294967295 >&/dev/null&
/usr/games/primes 1 4294967295 >&/dev/null&
/usr/games/primes 1 4294967295 >&/dev/null&
/usr/games/primes 1 4294967295 >&/dev/null&
/usr/games/primes 1 4294967295 >&/dev/null&
/usr/games/primes 1 4294967295 >&/dev/null&
/usr/games/primes 1 4294967295 >&/dev/null&
/usr/games/primes 1 4294967295 >&/dev/null&
/usr/games/primes 1 4294967295 >&/dev/null&
/usr/games/primes 1 4294967295 >&/dev/null&
/usr/games/primes 1 4294967295 >&/dev/null&
/usr/games/primes 1 4294967295 >&/dev/null&
/usr/games/primes 1 4294967295 >&/dev/null&
/usr/games/primes 1 4294967295 >&/dev/null&
/usr/games/primes 1 4294967295 >&/dev/null&
/usr/games/primes 1 4294967295 >&/dev/null&
/usr/games/primes 1 4294967295 >&/dev/null&
/usr/games/primes 1 4294967295 >&/dev/null&
/usr/games/primes 1 4294967295 >&/dev/null&
/usr/games/primes 1 4294967295 >&/dev/null&
/usr/games/primes 1 4294967295 >&/dev/null&
/usr/games/primes 1 4294967295 >&/dev/null&
/usr/games/primes 1 4294967295 >&/dev/null&
/usr/games/primes 1 4294967295 >&/dev/null&
/usr/games/primes 1 4294967295 >&/dev/null&
/usr/games/primes 1 4294967295 >&/dev/null&
/usr/games/primes 1 4294967295 >&/dev/null&
/usr/games/primes 1 4294967295 >&/dev/null&
# etc, ...
#
# [get the idea?]
jim
--
All opinions expressed are mine, if you | "I will not be pushed, stamped,
think otherwise, then go jump into turbid | briefed, debriefed, indexed, or
radioactive waters and yell WAHOO !!! | numbered!" - #1, "The Prisoner"
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