9 million hits/day with 120 megs RAM

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After checking this for about 9 months, I can tell you this almost always reads that number: 300 microseconds. This is about one third the time a camera flash illuminates. That’s, well, pretty quick. When I started, my software was taking about 0.25 seconds (250 000 microseconds) to produce the front page of my website. I needed to improve performance by over 800x.

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memcache, nginx, php