forestgagnon / ravager

no-nonsense http load generator

ravager -- a simple HTTP load generator

It makes a ton of requests. It also tries not to suck.

Basic load generating functionality behind a simple CLI. No byzantine config files or complex setup.

The output gives you counts of each status code, and the effective requests-per-second (rps) while it is running. The logs are structured JSON.

Usage

Docker

https://hub.docker.com/r/forestgagnon/ravager

You may need to pass in a special ulimit at high parallelism

docker run --rm -it forestgagnon/ravager --help

docker run --ulimit nofile=20000:20000 --rm -i forestgagnon/ravager \
  --url http://mysite.mysite \
  --method POST \
  --parallelism 1000 \
  --numrequests 20000 \
  --header "Authorization:Bearer foo" \
  --header "Content-Type:application/json" \
  --body '{"foo":"bar"}'

Go toolchain

Watch out for ulimit on number of files. ulimit -n sets it for your shell. e.g. if you use parallelism of 1000, you should make sure the ulimit on number of open files is high enough, like ulimit -n 2000

go install github.com/forestgagnon/ravager@latest