I'm running Squid 3.2.9, and I am seeing huge memory and CPU usage on busy sites. The CPU usage is expected due to the level of traffic, but the memory usage not so much. PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND 15631 squid 25 0 2073m 2.0g 5464 R 87.4 20.3 230:11.58 /usr/sbin/squid -N -f /etc/squid/squid.conf cache_mem is set to 1024 MB. I would not expect Squid to need an additional GB of memory to manage its internals. The output of the manager's mem page can be downloaded here: http://www.getoffmalawn.com/static/squidmgr.mem What can I do to reduce this memory usage? It looks like a memory leak to me. Nathan.