10 000 comet connections
Q: How well does the Nginx HTTP push module perform with 10 000 concurrent clients? (Ye olde C10k problem). A: Very well. About 7 kB per client and practically zero CPU load. This article describes how I performed the test, using three different hosts – my local computer, a Debian Linux server and a Mac OS X host simulating 10 000 clients. Disclaimer: This test is not intended as a realistic multi
httperf and File Descriptors
When running httperf if you get this error: httperf --timeout=5 --client=0/1 --server=domU-12-31-39-00-A9-F7 --port=80 --uri=/articles.html --rate=500 --send-buffer=4096 --recv-buffer=16384 --num-conns=20000 --num-calls=10 httperf: warning: open file limit > FD_SETSIZE; limiting max. # of open files to FD_SETSIZE Maximum connect burst length: 50 Total: connections 9789 requests 96039 replies 95959
A comparison between Misultin, Mochiweb, Cowboy, NodeJS and Tornadoweb
As some of you already know, I’m the author of Misultin, an Erlang HTTP lightweight server library. I’m interested in HTTP servers, I spend quite some time trying them out and am always interested in comparing them from different perspectives. Today I wanted to try the same benchmark against various HTTP server libraries: Misultin (Erlang) Mochiweb (Erlang) Cowboy (Erlang) NodeJS (V8) Tornadoweb (
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