Hi there, We are using both SQUID (the latest stable version) and cache flow to cache the pictures for the website. I've been puzzled by the following fact that SQUID can only push less than 30Mbps traffic with P4 2.4G, 2G mem, 4x18G hard disk because it uses up the CPU. And we have an old cache flow with PIII 500 CPU, 4G mem, 2x18G hard disk but it can push over 80Mbps traffic easily. And the CPU usage is relatively low. So what's causing the SQUID to consume so much CPU? Any suggestion or pointer is highly appreciated. George