Redis Performance Benchmark

redis.rb

require 'rubygems'
require 'hiredis'
require 'redis'
require 'json'
require 'msgpack'

script = <<EOF
		redis.call('get', 'a')
		redis.call('get', 'b')
		redis.call('get', 'c')
		redis.call('get', 'd')
		redis.call('get', 'e')
		redis.call('get', 'f')
		redis.call('get', 'g')
		redis.call('get', 'h')
		redis.call('get', 'i')
		redis.call('get', 'j')
		redis.call('get', 'k')
		redis.call('get', 'l')		
EOF

r = Redis.new(:driver => :hiredis)
sha = r.script(:load, script)
repeat = 10000

t1 = Time.now

repeat.times do
	r.get("a")
	r.get("b")
	r.get("c")
	r.get("d")
	r.get("e")
	r.get("f")
	r.get("g")
	r.get("h")
	r.get("i")
	r.get("j")
	r.get("k")
	r.get("l")
end

puts "Simple: #{(1 / ( (Time.now - t1) / repeat)).round} req/s"

t1 = Time.now

repeat.times do
	r.multi do
		r.get("a")
		r.get("b")
		r.get("c")
		r.get("d")
		r.get("e")
		r.get("f")
		r.get("g")
		r.get("h")
		r.get("i")
		r.get("j")
		r.get("k")
		r.get("l")
	end
end

puts "Multi: #{(1 / ( (Time.now - t1) / repeat)).round} req/s"

t1 = Time.now

repeat.times do
	r.evalsha(sha, [], [])
end

puts "Script: #{(1 / ( (Time.now - t1) / repeat)).round} req/s"

result

This script performs a simple redis benchmark, requesting 12 keys per simple 'get'.
The loop repeats 10k times for some meaningful measurements. 

First run does simple sequential gets, second one doing a redis multi, third one using a redis script and evalsha for requesting.


Simple: 1041 req/s
Multi: 4045 req/s
Script: 8145 req/s