bench_digest.rb

require 'zlib'
require 'digest'
require 'openssl'
require 'benchmark/ips'

DIGESTS = %w[MD5 SHA1 SHA256 SHA384 SHA512 RMD160].map { |name|
  Digest(name).new
}

OPENSSL_DIGESTS = %w[SHA1
                     SHA224 SHA256 SHA384 SHA512
                     SHA512-224 SHA512-256
                     SHA3-224 SHA3-256 SHA3-384 SHA3-512
                     BLAKE2s256 BLAKE2b512].map { |name|
  OpenSSL::Digest.new(name)
}

# so much faster, it throws off the comparison
INCLUDE_CRC32 = false

str = 'All work and no play makes Jack a very dull boy.'

Benchmark.ips do |b|
  b.config(time: 1, warmup: 0.2)

  if INCLUDE_CRC32
    b.report("Zlib.crc32") {
      Zlib.crc32(str)
    }
  end

  DIGESTS.each { |algo|
    b.report(algo.class.to_s) {
      algo.digest(str)
    }
  }

  OPENSSL_DIGESTS.each { |algo|
    b.report("OpenSSL::Digest(#{algo.name})") {
      algo.digest(str)
    }
  }

  b.compare!
end

shell.txt

[rwh@nixos:~/git/compsci]$ ruby test/bench/digest.rb
ruby 3.2.2 (2023-03-30 revision e51014f9c0) +YJIT [x86_64-linux]
Warming up --------------------------------------
         Digest::MD5   211.105k i/100ms
        Digest::SHA1   181.716k i/100ms
      Digest::SHA256   136.872k i/100ms
      Digest::SHA384   112.944k i/100ms
      Digest::SHA512   111.909k i/100ms
      Digest::RMD160   161.748k i/100ms
OpenSSL::Digest(SHA1)
                        99.778k i/100ms
OpenSSL::Digest(SHA224)
                        89.134k i/100ms
OpenSSL::Digest(SHA256)
                        88.503k i/100ms
OpenSSL::Digest(SHA384)
                        81.529k i/100ms
OpenSSL::Digest(SHA512)
                        80.597k i/100ms
OpenSSL::Digest(SHA512-224)
                        77.132k i/100ms
OpenSSL::Digest(SHA512-256)
                        78.483k i/100ms
OpenSSL::Digest(SHA3-224)
                        68.163k i/100ms
OpenSSL::Digest(SHA3-256)
                        68.680k i/100ms
OpenSSL::Digest(SHA3-384)
                        68.310k i/100ms
OpenSSL::Digest(SHA3-512)
                        68.028k i/100ms
OpenSSL::Digest(BLAKE2s256)
                        84.671k i/100ms
OpenSSL::Digest(BLAKE2b512)
                        82.297k i/100ms
Calculating -------------------------------------
         Digest::MD5      2.081M (± 1.4%) i/s -      2.111M in   1.014597s
        Digest::SHA1      1.807M (± 0.3%) i/s -      1.817M in   1.005586s
      Digest::SHA256      1.357M (± 0.4%) i/s -      1.369M in   1.008647s
      Digest::SHA384      1.158M (± 0.7%) i/s -      1.242M in   1.072759s
      Digest::SHA512      1.134M (± 0.4%) i/s -      1.231M in   1.085901s
      Digest::RMD160      1.624M (± 0.3%) i/s -      1.779M in   1.095586s
OpenSSL::Digest(SHA1)
                          1.000M (± 0.4%) i/s -      1.098M in   1.097361s
OpenSSL::Digest(SHA224)
                        894.996k (± 0.2%) i/s -    980.474k in   1.095512s
OpenSSL::Digest(SHA256)
                        888.774k (± 0.4%) i/s -    973.533k in   1.095385s
OpenSSL::Digest(SHA384)
                        813.139k (± 0.6%) i/s -    815.290k in   1.002680s
OpenSSL::Digest(SHA512)
                        813.274k (± 0.3%) i/s -    886.567k in   1.090129s
OpenSSL::Digest(SHA512-224)
                        773.323k (± 0.3%) i/s -    848.452k in   1.097162s
OpenSSL::Digest(SHA512-256)
                        786.250k (± 0.4%) i/s -    863.313k in   1.098034s
OpenSSL::Digest(SHA3-224)
                        681.502k (± 0.2%) i/s -    681.630k in   1.000193s
OpenSSL::Digest(SHA3-256)
                        683.065k (± 0.3%) i/s -    686.800k in   1.005480s
OpenSSL::Digest(SHA3-384)
                        683.624k (± 0.4%) i/s -    751.410k in   1.099171s
OpenSSL::Digest(SHA3-512)
                        682.436k (± 0.3%) i/s -    748.308k in   1.096534s
OpenSSL::Digest(BLAKE2s256)
                        862.242k (± 0.3%) i/s -    931.381k in   1.080198s
OpenSSL::Digest(BLAKE2b512)
                        821.966k (± 0.7%) i/s -    822.970k in   1.001273s

Comparison:
         Digest::MD5:  2081096.6 i/s
        Digest::SHA1:  1807077.9 i/s - 1.15x  slower
      Digest::RMD160:  1624009.0 i/s - 1.28x  slower
      Digest::SHA256:  1357010.0 i/s - 1.53x  slower
      Digest::SHA384:  1158173.7 i/s - 1.80x  slower
      Digest::SHA512:  1133640.3 i/s - 1.84x  slower
OpenSSL::Digest(SHA1):  1000191.7 i/s - 2.08x  slower
OpenSSL::Digest(SHA224):   894996.4 i/s - 2.33x  slower
OpenSSL::Digest(SHA256):   888774.5 i/s - 2.34x  slower
OpenSSL::Digest(BLAKE2s256):   862241.9 i/s - 2.41x  slower
OpenSSL::Digest(BLAKE2b512):   821966.2 i/s - 2.53x  slower
OpenSSL::Digest(SHA512):   813274.2 i/s - 2.56x  slower
OpenSSL::Digest(SHA384):   813139.2 i/s - 2.56x  slower
OpenSSL::Digest(SHA512-256):   786250.2 i/s - 2.65x  slower
OpenSSL::Digest(SHA512-224):   773323.3 i/s - 2.69x  slower
OpenSSL::Digest(SHA3-384):   683624.2 i/s - 3.04x  slower
OpenSSL::Digest(SHA3-256):   683065.0 i/s - 3.05x  slower
OpenSSL::Digest(SHA3-512):   682436.4 i/s - 3.05x  slower
OpenSSL::Digest(SHA3-224):   681501.7 i/s - 3.05x  slower