Hello, a certain host I've been with for over 6 months now experiences what I would consider always very high server load. The server load is normally around 4-6ish, rarely below that. A few times a day it spikes to around 12ish, sometimes even more. The server has 4 cpus. Is this just some really big time overselling? They had downtime once for 2 days when a server crashed, and after that the server load has been really high, when before that it was normally around 1-2, and in the 0.50s
It all depends on what the load is caused by. Also in my tests, I am getting twice the performance from a single Xeon 5310 quad verse a Q6600 quad at the same load values. So the load can be quite different depending on the CPUs, RAM and type of drives. Just a generic answer but just trying to show that that load may not be a bad thing at all but it could be.
A high load is a warning sign. But it's not much more than this. If performance is affected, do ask the host to investigate. 2 days downtime is bad, no matter how you look at it. There should be a very serious explanation behind it, and detailed measures attempting to avoid it from happening again.