We have been having some issues with CPU with our Debian Moodle server. Its been showing a load average of 4 -5 and has been running slowly.
We add two more processor cores to it this morning which seems to have done the trick however I have noticed that some apache processes for brief periods of time are using 90% CPU, only for may be a second or so.
Is this normal? Is there a way of restricting each apache process to a CPU percentage?
Or might we have some settings wrong in the apache conf