scale clojure web application
Test how Clojure web application scales concurrent HTTP connections with http-kit
600K concurrent HTTP connections with 3G heap.
If a more powerful hardware is at hand and you want to get a larger number:
Tuning TCP/IP buffer sizes
# edit run_server. give it more RAM, http-kit will use ~2k per connection java -server -Xms3072m -Xmx3072m \ -cp `lein classpath` clojure.main \ -m main $@
// edit ConcurrencyBench.java. final static int PER_IP = 20000; // 63K is the upper bound final static InetSocketAddress ADDRS = new InetSocketAddress; // 600k concurrent connections final static int CONCURENCY = PER_IP * ADDRS.length;