Yahoo, the most visited site on the web, gets 10 million hits a week. That means, on average, 1.4 million hits a day, or about 60,000 hits an hour, or about 1000 hits a minute, or roughly 20 hits a second.

If we calculate peek at 100 times the average, we are looking at about 2000 hits a second maximum.

MCache on modern hardware has been tested at 4000 session dialogs per second. The size of session information is a factor because of network bandwidth issues and that may effect throughput, but MCache should be able to handle even the most busiest of sites with ease.