> cache_mem 250 MB
maximum_object_size_in_memory 50 KB
memory, memory, memory. The more you can throw at the problem the
more objects can be kept and served while hot. Squid with 64-bit can
easily handle many GBs of memory cache. (at cost of slow shutdown
when it saves the hottest to disk for the next round.)
cache_replacement_policy heap LFUDA
Been a while since I looked at these, to maximize bytes you want the
policy that looks at object size as well as 'coldness'. To remove
the smaller cool objects before the larger equally cool ones.
cache_dir ufs /data/spool/squid 30000 16 256