What is wrk ?
wrk is a modern HTTP benchmarking tool capable of generating significant load when run on a single multi-core CPU. It combines a multithreaded design with scalable event notification systems such as epoll and kqueue.
An optional LuaJIT script can perform HTTP request generation, response processing, and custom reporting.
You can get wrk from official git page: https://github.com/wg/wrk
Let’s install from ports on FreeBSD
[root@vm01 ~]# make install clean -C /usr/ports/benchmarks/wrk
-c, --connections # Connections to keep open -d, --duration # Duration of test -t, --threads # Number of threads to use -s, --script # Load Lua script file -H, --header # Add header to request --latency # Print latency statistics --timeout # Socket/request timeout -v, --version # Print version details
A quick test
[root@vm01 ~]# wrk -t4 -c200 -d30s https://www.unixteacher.org/ Running 30s test @ https://www.unixteacher.org/ 4 threads and 200 connections Thread Stats Avg Stdev Max +/- Stdev Latency 1.28s 306.99ms 1.82s 65.73% Req/Sec 35.70 21.72 171.00 70.49% 4047 requests in 30.11s, 49.32MB read Requests/sec: 134.39 Transfer/sec: 1.64MB