The cluster we are on at Dreamhost has lately had a few issues
(
1
2
3)
As of Fri Dec 19 22:00:02 2008 GMT, server was up 64 days, 4:28. Load average last minute was 2.11, last five minutes 1.59, last fifteen minutes 1.50.
Load averages over 20 will make everything here very sluggish.