Low Priority Apps

[Dave Raven]

Hi all,
	I have a FreeBSD 4.x box running an app that uses 30-50% of the
processor. Periodically (through cron) we run a perl app that processes log
files and inserts the entries to sql.

This perl + mysql combination is causing problems for our app and I'd like
to run them at a low priority. What nice value should I give them - should I
lower the value of just the perl, or both, or make the high priority app's
value higher?

Thanks
Dave