Not sure what kind of application you are trying to monitor, however if its PHP there are some excellent profilers out there. I used one once to figure out that 99% of my buddies code execution time was spent in dns lookups. I forget which one it was, I did an apt-cache search php profiler to find it anyways.
Theodore Baschak
John Lange wrote:
Does anyone have any suggestions for accurate monitoring of system load on web servers?
In the situation where you have a server which is hosting multiple applications I've found it next to impossible to determine with any accuracy what applications or pages within those applications are causing load.
At any given moment its easy to see what is using CPU and memory. But in the case of a web server these are brief spikes that don't mean anything. Whats needed is a way to see what has caused the most load over a given time period (say the last 10 minutes).
Does anyone have any suggestions for tools that can help determine load.