Kain, Becki (B.) wrote:
The box is sluggish and what's happening is that certain web processes are pegging the cpu's and not letting go. I'm trying to figure out why it's happening. Ideas for me, on how to debug this? Thanks
You're misinterpreting here. processes do not have the power to "hold" the CPU, because Linux, like all Unix systems and derivatives, uses pre-emptive scheduling. A process gets a time slice (maybe 1/100th of a second) MAXIMUM before a timer interrupts the process, and the scheduler re-evaluates which process will run next.. IF one process is totally on the CPU all the time, it means that no other process is "ready" to run. A process which just had the CPU, and was interrupted by the timer has the LOWEST priority to run on the CPU for all processes at the same nice level as it's at. If he's trying to do web serving on a machine that's also being used as a desktop...the problem isn't CPU usage, it's more likely disk-drive utilization conflicts... It's hard to be specific when the machine in question is 30 miles away from where I sit right now. -- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
