Does anyone know of any good tools to analyze apache when it's under high load. I need something more useful the top. I've been having high load issues on my machine for a while, but traffic is actually dropping & am having a lot of trouble figuring out what the problem is.
have you installed a caching engine into php ? like apc / zend etc ? that'll help with some of the load, but i'm not sure of a program or tool that will tell you what is going on inside apache on a leveling that is useful there is server-status, but it tells you what apache is doing (ie threads workers requests etc) but not what it IS running (ie running script X)
There can be many things to cause this, look at Apache error log, also check and see what requests Apache is processing for a few minutes. What is your server configuration anyway?