gistfile1.txt

[] ~ $ ruby bench.rb 
ruby 2.6.8p205 (2021-07-07 revision 67951) [x86_64-darwin18]
Warming up --------------------------------------
   Time.now.strftime    45.084k i/100ms
          Logger#add    10.865k i/100ms
         Logger#info    10.734k i/100ms
Calculating -------------------------------------
   Time.now.strftime    433.475k (± 2.8%) i/s -      1.307M in   3.018691s
          Logger#add    103.901k (± 7.0%) i/s -    315.085k in   3.050101s
         Logger#info    106.944k (± 1.9%) i/s -    322.020k in   3.012254s

[] ~ $ rvm use ruby-3
Using /Users/headius/.rvm/gems/ruby-3.0.2

[] ~ $ gem install benchmark-ips
Fetching benchmark-ips-2.9.2.gem
Successfully installed benchmark-ips-2.9.2
Parsing documentation for benchmark-ips-2.9.2
Installing ri documentation for benchmark-ips-2.9.2
Done installing documentation for benchmark-ips after 1 seconds
1 gem installed

[] ~ $ ruby bench.rb 
ruby 3.0.2p107 (2021-07-07 revision 0db68f0233) [x86_64-darwin19]
Warming up --------------------------------------
   Time.now.strftime    40.006k i/100ms
          Logger#add     1.075M i/100ms
         Logger#info   691.585k i/100ms
Calculating -------------------------------------
   Time.now.strftime    395.852k (± 2.2%) i/s -      1.200M in   3.033419s
          Logger#add     10.709M (± 3.0%) i/s -     32.243M in   3.014164s
         Logger#info      6.877M (± 2.1%) i/s -     20.748M in   3.018107s

[] ~ $ jruby bench.rb 
jruby 9.4.0.0-SNAPSHOT (3.0.2) 2021-11-18 f7a44d885b OpenJDK 64-Bit Server VM 11.0.10+8-jvmci-21.0-b06 on 11.0.10+8-jvmci-21.0-b06 +jit [darwin-x86_64]
Warming up --------------------------------------
   Time.now.strftime    28.315k i/100ms
          Logger#add   413.423k i/100ms
         Logger#info   367.987k i/100ms
Calculating -------------------------------------
   Time.now.strftime    384.229k (± 7.3%) i/s -      1.161M in   3.038725s
          Logger#add      7.054M (±20.0%) i/s -     20.258M in   3.032560s
         Logger#info      5.793M (±26.0%) i/s -     15.455M in   3.004053s

[] ~ $ jruby -Xcompile.invokedynamic bench.rb 
jruby 9.4.0.0-SNAPSHOT (3.0.2) 2021-11-18 f7a44d885b OpenJDK 64-Bit Server VM 11.0.10+8-jvmci-21.0-b06 on 11.0.10+8-jvmci-21.0-b06 +indy +jit [darwin-x86_64]
Warming up --------------------------------------
   Time.now.strftime    33.730k i/100ms
          Logger#add   494.917k i/100ms
         Logger#info   454.444k i/100ms
Calculating -------------------------------------
   Time.now.strftime    381.674k (± 8.8%) i/s -      1.147M in   3.031013s
          Logger#add     12.197M (±23.1%) i/s -     33.159M in   3.015881s
         Logger#info     12.657M (±19.8%) i/s -     35.447M in   3.027089s