“Cache Invalidation Strategies With Varnish Cache” on Smashing Magazine

"Cache Invalidation Strategies With Varnish Cache" on Smashing Magazine:

10 microseconds (or 250 milliseconds): That’s the difference between delivering a cache hit and delivering a cache miss. How often you get the latter will depend on the efficiency of the cache — this is known as the “hit rate.” A cache miss depends on two factors: the volume of traffic and the average time to live (TTL), which is a number indicating how long the cache is allowed to keep an object. As system administrators and developers, we can’t do much about the traffic, but we can influence the TTL.

Posted by mrkrn

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