Using wrk with proxies

• September 30, 2016
• http  
• wrk  
• benchmarking  

Based on this extremely helpful post, a slight extension to make it easier to use wrk with a HTTP proxy.

url = ''
host = ''

init = function(args)
    url = args[1] -- proxy needs absolute URL

    -- Capture the hostname from the target URL.
    _, _, host = string.find(url, 'http://([^/]+)/')
end

request = function()
    return wrk.format("GET", url, { Host = host })
end

Usage is like this:

 $ wrk -s proxy.wrk --connections 1 --threads 1 --duration 10 http://127.0.0.1:8001/ -- http://example.com/foo/bar/baz