afa masteryo
New Member
In my PHP web application, I am trying to limit the number of CPU/memory intensive processes that run (for example, ImageMagick's 'convert' command). I have a number of crons jobs that execute various scripts that could potentially execute too many instances of these CPU/memory intensive processes.In my attempt to limit such processes, I first check to see if my system is already running a certain number of processes. The function:\[code\]function has_reached_process_limit($process, $limit){ $command = 'ps -eo comm | grep ' . $process; exec($command, $output, $return); if (count($output) > $limit) { return TRUE; } else { return FALSE; }} \[/code\]So, I run something like this:\[code\]while (has_reached_process_limit('convert', 5) === TRUE){ // loop over}\[/code\]The problem is that when I monitor my OS' resources (via the 'top' command), I see a LOT more processes than what I expect to be running. Any ideas why?