On Sat, Feb 16, 2008, J. Peng wrote: > yes, cache_mem is 1.8GB. > so I thought I should see much more TCP_MEM_HIT than TCP_HIT, but it is not. It depends on your object workload. If you have quite a few large objects going through your cache then it may throw out smaller objects which are hit later. Its hard to know without running some logs through an analyser. And I don't know of anything publicly released that can help you optimise that sort of stuff.. Adrian -- - Xenion - http://www.xenion.com.au/ - VPS Hosting - Commercial Squid Support - - $25/pm entry-level VPSes w/ capped bandwidth charges available in WA -