a benchmark to test Net::HTTP, HTTParty, Curb, and system curl

test_http_clients.rb

require 'rubygems'
require 'httparty'
require 'curb'
require 'net/http'
require 'benchmark'
include Benchmark

RUNS = 1000

url = 'http://localhost:4567/'
puts "Measuring GETs"
Benchmark.benchmark(" "*10 + CAPTION, 10, FMTSTR) do |x|
  x.report("Net::HTTP") do 
    RUNS.times do 
      # NOTE: This works slightly faster without URI.parse, but I'm trying to make this a little more real-world.
      Net::HTTP.get URI.parse(url)
    end
  end

  x.report("HTTParty") do
    RUNS.times do
      HTTParty.get(url)
    end
  end

  x.report("Curb") do
    RUNS.times do
      Curl::Easy.perform(url)
    end
  end

  # NOTE: This situation might not be typical, but it is a lot faster.
  x.report("Curb-reuse") do
    c = Curl::Easy.new
    RUNS.times do
      c.url = url
      c.perform
    end
  end

  x.report("curl") do
    RUNS.times do
      `curl "#{url}" 2>/dev/null`
    end
  end
end


params = {'q' => 'test'}

puts "Measuring POSTs"
Benchmark.benchmark(" "*10 + CAPTION, 10, FMTSTR) do |x|
  x.report("Net::HTTP") do 
    RUNS.times do 
      Net::HTTP.post_form URI.parse(url), params
    end
  end

  x.report("HTTParty") do
    RUNS.times do
      HTTParty.post(url, :body => params)
    end
  end

  x.report("Curb") do
    curb_params = params.collect{|(k,v)| Curl::PostField.content(k, v) }
    RUNS.times do
      Curl::Easy.http_post(url, curb_params)
    end
  end

  x.report("Curb-reuse") do
    c = Curl::Easy.new
    curb_params = params.collect{|(k,v)| Curl::PostField.content(k, v) }
    RUNS.times do
      c.url = url
      c.http_post curb_params
    end
  end

  x.report("curl") do
    curl_params = params.collect{|(k,v)| "-F \"#{k}=#{v}\"" }.join(" ")
    RUNS.times do
      `curl -X POST -s #{curl_params} "#{url}" 2>/dev/null`
    end
  end
end

I have error:
test_http_clients.rb:12:in `

': uninitialized constant FMTSTR (NameError)

in ruby 2 FMTSTR is replaced by FORMAT
the default value if nil is given is :

"%10.6u %10.6y %10.6t %10.6r\n"

you can check an example here:

http://www.ruby-doc.org/stdlib-2.0/libdoc/benchmark/rdoc/Benchmark.html

and the format here:

http://www.ruby-doc.org/stdlib-2.0/libdoc/benchmark/rdoc/Benchmark/Tms.html#method-i-format