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.
This is free and open source software.
Website: github.com/wg/wrk
Support:
Developer: Will Glozer and many others
License: Modified Apache 2.0 License
Example command:
$ wrk -t12 -c400 -d30s http://127.0.0.1:8080/index.html
This runs a benchmark for 30 seconds, using 12 threads, and keeping 400 HTTP connections open.
Output:
Running 30s test @ http://127.0.0.1:8080/index.html
12 threads and 400 connections
Thread Stats Avg Stdev Max +/- Stdev
Latency 635.91us 0.89ms 12.92ms 93.69%
Req/Sec 56.20k 8.07k 62.00k 86.54%
22464657 requests in 30.00s, 17.76GB read
Requests/sec: 748868.53
Transfer/sec: 606.33MB
wrk is written in C. Learn C with our recommended free books and free tutorials.
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Read our verdict in the software roundup.
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