Ruby-cli --pipe vs Ruby-rb vs Ruby-rb Hiredis benchmark

benchmark.rb

require 'rubygems'
require 'bundler'
require 'bench_press'
require 'tempfile'
require 'redis'
require 'hiredis'

extend BenchPress
reps 100

total_data = 10_000

def gen_redis_proto(*cmd)
    proto = ""
    proto << "*"+cmd.length.to_s+"\r\n"
    cmd.each{|arg|
        proto << "$"+arg.to_s.bytesize.to_s+"\r\n"
        proto << arg.to_s+"\r\n"
    }
    proto
end

def redis_data(connection, total)
        total.times { |n| connection.set("Key#{n}","Value#{n}") }
end

def mass_create(total)
	file = File.open("/tmp/redis#{Time.now.to_i}#{rand}", "w")
	total.times { |n| file.write(gen_redis_proto("SET","Key#{n}","Value#{n}")) }
	file.close
	file.path
end

`redis-cli flush-all`
measure "Redis-cli pipe" do
	system("cat #{mass_create(total_data)} | redis-cli --pipe")
end

`redis-cli flush-all`
measure "Redis-rb" do
	redis_data(Redis.new, total_data)
end

`redis-cli flush-all`
measure "Redis-rb with Hiredis" do
	redis_data(Redis.new(driver: :hiredis), total_data)
end

`redis-cli flush-all`
measure "Redis-rb pipelined" do
	r = Redis.new
	r.pipelined do
		redis_data(r, total_data)
	end
end

`redis-cli flush-all`
measure "Redis-rb pipelined with Hiredis" do
        r = Redis.new(driver: :hiredis)
        r.pipelined do
                redis_data(r, total_data)
        end
end

Gemfile

source "http://rubygems.org"

gem 'bundler', ">= 1.2.1"
gem 'redis', ">= 3.0.2"
gem 'hiredis', ">= 0.4.5"
gem 'bench_press', ">= 0.3.1"

Gemfile.lock

GEM
  remote: http://rubygems.org/
  specs:
    activesupport (3.2.8)
      i18n (~> 0.6)
      multi_json (~> 1.0)
    bench_press (0.3.1)
      activesupport (>= 2.3.5)
      facter (>= 1.5.7)
      httparty (>= 0.6.1)
      jeweler (>= 1.4.0)
    facter (1.6.13)
    git (1.2.5)
    hiredis (0.4.5)
    httparty (0.9.0)
      multi_json (~> 1.0)
      multi_xml
    i18n (0.6.1)
    jeweler (1.8.4)
      bundler (~> 1.0)
      git (>= 1.2.5)
      rake
      rdoc
    json (1.7.5)
    multi_json (1.3.6)
    multi_xml (0.5.1)
    rake (0.9.2.2)
    rdoc (3.12)
      json (~> 1.4)
    redis (3.0.2)

PLATFORMS
  ruby

DEPENDENCIES
  bench_press (>= 0.3.1)
  bundler (>= 1.2.1)
  hiredis (>= 0.4.5)
  redis (>= 3.0.2)

result.txt

Benchmark
=========
Date: October 25, 2012  

System Information
------------------
    Operating System:    Mac OS X 10.6.8 (10K549)
    CPU:                 Intel Core 2 Duo 2.4 GHz
    Processor Count:     2
    Memory:              4 GB
    ruby 1.9.3p194 (2012-04-20 revision 35410) [x86_64-darwin10.8.0]

"Redis-rb pipelined with Hiredis" is up to 92% faster over  repetitions
-----------------------------------------------------------------------

    Redis-rb pipelined with Hiredis    51.649276  secs    Fastest
    Redis-cli pipe                     79.242871  secs    34% Slower
    Redis-rb pipelined                 193.139364 secs    73% Slower
    Redis-rb with Hiredis              583.220636 secs    91% Slower
    Redis-rb                           678.863098 secs    92% Slower