Gemfile

## bench.rb
require "benchmark"
require "ipaddr"

require "geoip"
require "geoip2_compat"
require "maxminddb"
require "hive_geoip2"
require "maxmind_geoip2"
require "pp"

N = 8192
M = 10_000
#ips = N.times.map { IPAddr.new(rand(2**13) * 2**19, Socket::AF_INET).to_s }

geoip = GeoIP::City.new("./GeoLiteCity.dat", :memory, false)
geoip2_compat = GeoIP2Compat.new("./GeoLite2-City.mmdb")
mmdb = MaxMindDB.new("./GeoLite2-City.mmdb")
hive = Hive::GeoIP2.new("./GeoLite2-City.mmdb")
MaxmindGeoIP2.file("./GeoLite2-City.mmdb")
MaxmindGeoIP2.locale("ja")

Benchmark.bmbm do |x|
  x.report("geoip") do
    M.times do
      geoip.look_up(IPAddr.new(rand(2**13) * 2**19, Socket::AF_INET).to_s)
    end
  end
  x.report("geoip2_compat") do
    M.times do
      geoip2_compat.lookup(IPAddr.new(rand(2**13) * 2**19, Socket::AF_INET).to_s)
    end
  end
  x.report("maxminddb (pure ruby)") do
    M.times do
      mmdb.lookup(IPAddr.new(rand(2**13) * 2**19, Socket::AF_INET).to_s)
    end
  end
  x.report("hive") do
    M.times do
      hive.lookup(IPAddr.new(rand(2**13) * 2**19, Socket::AF_INET).to_s)
    end
  end
  x.report("maxmind_geoip2") do
    M.times do
      MaxmindGeoIP2.locate(IPAddr.new(rand(2**13) * 2**19, Socket::AF_INET).to_s)
    end
  end
end if false

ip = IPAddr.new(rand(2**13) * 2**19, Socket::AF_INET).to_s

p ip
pp geoip.look_up(ip)
p "--"
pp geoip2_compat.lookup(ip)
#p "--"
#pp mmdb.lookup(ip)
p "--"
pp hive.lookup(ip)
p "--"
pp MaxmindGeoIP2.locate(ip)

hive.close

## Gemfile
source "https://rubygems.org"

gem "maxmind_geoip2"
gem "maxminddb"
gem "hive_geoip2"
gem "geoip2_compat"
gem "geoip-c", require: "geoip"

## result.txt
$ bundle exec ruby bench.rb
Rehearsal ---------------------------------------------------------
geoip                   0.080000   0.000000   0.080000 (  0.082323)
geoip2_compat           0.060000   0.000000   0.060000 (  0.062950)
maxminddb (pure ruby)   2.290000   0.000000   2.290000 (  2.284960)
hive                    0.230000   0.000000   0.230000 (  0.226919)
maxmind_geoip2          0.630000   0.210000   0.840000 (  0.848425)
------------------------------------------------ total: 3.500000sec

                            user     system      total        real
geoip                   0.080000   0.000000   0.080000 (  0.075413)
geoip2_compat           0.060000   0.000000   0.060000 (  0.063265)
maxminddb (pure ruby)   2.330000   0.000000   2.330000 (  2.326974)
hive                    0.250000   0.000000   0.250000 (  0.242188)
maxmind_geoip2          0.650000   0.270000   0.920000 (  0.926980)