apache httpd processes
i run a pretty busy site on apache + php + mysqlwhen i check the system proccesses, i always see a bunch of httpd processes (like 30-50) with each one takes about 16-18 mb in memory. i dont understand this: does each one of this process represent a httpd connection? i checked the stats of these processes and found that many have lasted for like an hour. are they supposed to be shut down after a period of time by apache? or is their such an option?