redis_benchmark.rb

require 'benchmark'
require 'redis'
require 'securerandom'

hosts = {
  :docker     => { :host => '172.17.8.102', :port => 6379 },
  :virtualbox => { :host => '33.33.11.10',  :port => 6379 },
}

hosts.each do |key, host|

  puts key

  redis = Redis.new(:host => host[:host], :port => host[:port], :db => 15)

  n = 5000
  Benchmark.bm do |x|
    x.report('set') { n.times do   ; redis.set SecureRandom.hex(10), SecureRandom.hex(10) ; end }
    x.report('get') { n.times do   ; redis.get SecureRandom.hex(10) ; end }
  end




end

Result

% ruby redis.rb
docker
       user     system      total        real
set  0.710000   0.230000   0.940000 ( 44.176670)
get  0.590000   0.200000   0.790000 ( 35.968567)
virtualbox
       user     system      total        real
set  0.370000   0.140000   0.510000 (  6.892621)
get  0.360000   0.150000   0.510000 (  6.434613)
ruby redis.rb  2.17s user 0.86s system 3% cpu 1:34.24 total