The c10k document
Every Linux network programmer ought to read Dan Kegel's great page the C10k problem:
It's time for web servers to handle ten thousand clients simultaneously, don't you think? After all, the web is a big place now.
And computers are big, too. You can buy a 1000MHz machine with 2 gigabytes of RAM and an 1000Mbit/sec Ethernet card for $1200 or so. Let's see - at 20000 clients, that's 50KHz, 100Kbytes, and 50Kbits/sec per client. It shouldn't take any more horsepower than that to take four kilobytes from the disk and send them to the network once a second for each of twenty thousand clients. (That works out to $0.08 per client, by the way. Those $100/client licensing fees some operating systems charge are starting to look a little heavy!) So hardware is no longer the bottleneck. [....]
posted Sat 1 May 2004 in /software/linux | link
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