Hi, On Tue, 2007-11-06 at 17:33 +0100, Matus UHLAR - fantomas wrote: > On 05.11.07 19:00, Paul Cocker wrote: > > Is there such a thing as too much disk cache? I recall seeing something on the squid-cache web site that said about 1 week is the optimal age for content. How you size the cache is a bit of a guess. I have two identical systems with 36 GBytes of cache each. One is doing about 3 times as much traffic as the other (so much for manual load balancing :-). The busy one has an LRU of 6 days while the quiet one has dropped down to about 9 days (I'm sure it was about 20 days not that long ago). That tells me they're not too bad size-wise. Both systems have just over 2,000,000 store entries. The cache_dir parameters of interest are: aufs, 19150, 46, 256. The whole theory behind squid is that it's quicker to get the object from disk than to retrieve it over the net. Getting objects from memory is nice but I wouldn't over-emphasise its importance. Colin -- Colin Campbell Unix Support/Postmaster/Hostmaster Citec +61 7 3227 6334
