slow internet as a bottom line

My internet service was highly unstable and my uploads the worst. Completely unpredictable. this forced the main isp links to go down and require a reboot for fast recovery. Cause of the problem, squid was running out of file descriptors. That was a bug from running delay pools on very old version of squid say version 2.5. to fix this had to move all connections depending on delay pools to another bandwidth controller and disabling delay pools.