Raw results for Benchmark: Deep directory structure vs. flat directory structure to store millions of files on ext4 article (https://medium.com/@hartator/benchmark-deep-directory-structure-vs-flat-directory-structure-to-store-millions-of-files-on-ext4-cac1000ca28)

benchmark-deep-vs-flat-directories-raw-results-v2.rb

1] pry(main)> 
[2] pry(main)> 
[3] pry(main)> 
[4] pry(main)> require 'digest'
=> true
[5] pry(main)> require 'benchmark'
=> true
[6] pry(main)> require 'open-uri'
=> true
[7] pry(main)> 
[8] pry(main)> keys = []
=> []
[9] pry(main)> 
[10] pry(main)> 10_000_000.times do
[10] pry(main)*   keys << Digest::MD5.hexdigest(rand.to_s)  
[10] pry(main)* end  


=> 10000000
[11] pry(main)> 
[12] pry(main)> body = open("https://serpapi.com/samples/3.json").read; nil;
[13] pry(main)> 
[14] pry(main)> `rm -rf /root/files/*`
=> ""
[15] pry(main)> 
[16] pry(main)> FileUtils.mkdir_p "dir_flat"
=> ["dir_flat"]
[17] pry(main)> 
[18] pry(main)> sleep 100
=> 100
[19] pry(main)> puts Benchmark.measure {
[19] pry(main)*   keys.each do |key|  
[19] pry(main)*     File.write "./dir_flat/#{key}", body    
[19] pry(main)*   end    
[19] pry(main)* }  
 89.495782 478.911081 568.406863 (932.061097)
=> nil
[20] pry(main)> 
[21] pry(main)> sleep 100
=> 100
[22] pry(main)> puts Benchmark.measure {
[22] pry(main)*   keys.each do |key|  
[22] pry(main)*     File.read "./dir_flat/#{key}"    
[22] pry(main)*   end    
[22] pry(main)* }  
649.349185 361.809478 1011.158663 (2796.507495)
=> nil
[23] pry(main)> 
[24] pry(main)> `rm -rf /root/files/*`
=> ""
[25] pry(main)> 
[26] pry(main)> FileUtils.mkdir_p "dir_deep"
=> ["dir_deep"]
[27] pry(main)> 
[28] pry(main)> sleep 100
=> 100
[29] pry(main)> puts Benchmark.measure {
[29] pry(main)*   keys.each do |key|  
[29] pry(main)*     dir_path = "./dir_deep/#{key[0..1]}/#{key[2..3]}/"    
[29] pry(main)*     FileUtils.mkdir_p dir_path    
[29] pry(main)*   end    
[29] pry(main)* }  
102.970207  29.968887 132.939094 (134.057899)
=> nil
[30] pry(main)> 
[31] pry(main)> sleep 100
=> 100
[32] pry(main)> puts Benchmark.measure {
[32] pry(main)*   keys.each do |key|  
[32] pry(main)*     dir_path = "./dir_deep/#{key[0..1]}/#{key[2..3]}/"    
[32] pry(main)*     File.write dir_path + key, body    
[32] pry(main)*   end    
[32] pry(main)* }  
120.121817 501.101713 621.223530 (1120.039820)
=> nil
[33] pry(main)> 
[34] pry(main)> sleep 100
=> 100
[35] pry(main)> puts Benchmark.measure {
[35] pry(main)*   keys.each do |key|  
[35] pry(main)*     dir_path = "./dir_deep/#{key[0..1]}/#{key[2..3]}/"    
[35] pry(main)*     File.read dir_path + key     
[35] pry(main)*   end    
[35] pry(main)* }  
828.138352 571.513574 1399.651926 (5753.102668)
=> nil
[36] pry(m