> Median Service Times (seconds) 5 min 60 min: > HTTP Requests (All): 0.00865 0.00865 > Cache Misses: 0.01035 0.01035 > Cache Hits: 0.00000 0.00000 > Near Hits: 0.00091 0.00091 > Not-Modified Replies: 0.00000 0.00000 > DNS Lookups: 0.00000 0.00000 > ICP Queries: 0.00000 0.00000 Response time is reasonable at this time, while, peak time capture is good for performance tunning. Try "atop 1" at peak time, this magic tool can clear about bottleneck. Try multi-instance, which can improve throughput dramaticlly. Docs's here: http://wiki.squid-cache.org/MultipleInstances CARP is another choice for extreme perf demand. http://wiki.squid-cache.org/ConfigExamples/ExtremeCarpFrontend