Redis benchmark

bench.rake

namespace :benchmarks do

  namespace :redis do

    desc 'Compare redis set vs redis hmset'
    task :hmset do
      REDIS = Redis.new(url: 'redis://localhost:6379/11')
      REDIS.flushdb

      Benchmark.ips do |x|
        x.report('set') do
          index = rand(1..1_000_000)
          REDIS.set("string-#{index}", SecureRandom.hex(100))
        end

        x.report('hmset') do
          index = rand(1..1_000_000)
          obj = {value: SecureRandom.hex(100), compression: 1, marshal: :oj}
          REDIS.hmset("hash-#{index}", *obj.to_a.flatten)
        end

        x.report('setex') do
          index = rand(1..1_000_000)
          REDIS.setex("string-#{index}", 3600, SecureRandom.hex(100))
        end

        x.report('hmset + expire') do
          index = rand(1..1_000_000)
          obj = {value: SecureRandom.hex(100), compression: 1, marshal: :oj}
          REDIS.multi do
            REDIS.hmset("hash-#{index}", *obj.to_a.flatten)
            REDIS.expire("hash-#{index}", 3600)
          end
        end
        
        x.compare!
      end

    end
    
    desc 'Compare redis get vs redis hgetall'
    task :hgetall do
      REDIS = Redis.new(url: 'redis://localhost:6379/11')
      REDIS.flushdb
      
      keys = (1..10_000).to_a
      keys.each do |index|
        REDIS.set("string-#{index}", SecureRandom.hex(100))
        obj = {value: SecureRandom.hex(100), compression: 1, marshal: :oj}
        REDIS.hmset("hash-#{index}", *obj.to_a.flatten)
      end

      Benchmark.ips do |x|
        x.report('get') do
          index = keys.sample
          REDIS.get("string-#{index}")
        end

        x.report('hgetall') do
          index = keys.sample
          REDIS.hgetall("hash-#{index}")
        end
                
        x.compare!
      end

    end

  end

end

results.txt

Calculating -------------------------------------
                 set   175.000  i/100ms
               hmset   180.000  i/100ms
               setex   178.000  i/100ms
      hmset + expire   150.000  i/100ms
-------------------------------------------------
                 set      2.383k (±30.3%) i/s -     10.500k
               hmset      2.349k (±29.1%) i/s -     10.620k
               setex      2.412k (±30.2%) i/s -     10.680k
      hmset + expire      1.683k (± 8.6%) i/s -      8.400k

Comparison:
               setex:     2412.1 i/s
                 set:     2383.2 i/s - 1.01x slower
               hmset:     2348.6 i/s - 1.03x slower
      hmset + expire:     1682.6 i/s - 1.43x slower

Calculating -------------------------------------
                 get   191.000  i/100ms
             hgetall   180.000  i/100ms
-------------------------------------------------
                 get      2.482k (±29.2%) i/s -     11.269k
             hgetall      2.150k (±26.3%) i/s -     10.080k

Comparison:
                 get:     2482.4 i/s
             hgetall:     2149.6 i/s - 1.15x slower