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    • ijl's avatar
      e6a7f1417a25
      Write directly to PyBytesObject · e6a7f1417a25
      ijl authored
      perf stat -B -e cache-references,cache-misses,cycles,instructions,branches,faults,migrations,branch-misses -g --delay 250 ./bench/run_func data/twitter.json.xz dumps
      
      before:
              96,346,033      cache-references
               2,396,956      cache-misses              #    2.488 % of all cache refs
           2,819,207,654      cycles
           6,903,811,887      instructions              #    2.45  insn per cycle
           1,527,040,323      branches
                 175,425      faults
                       0      migrations
               9,638,830      branch-misses             #    0.63% of all branches
      
             0.995690355 seconds time elapsed
      
             0.949150000 seconds user
             0.978124000 seconds sys
      
      after:
              58,807,500      cache-references
               2,276,541      cache-misses              #    3.871 % of all cache refs
           1,535,556,207      cycles
           5,080,111,489      instructions              #    3.31  insn per cycle
           1,088,522,837      branches
                     220      faults
                       0      migrations
               6,015,137      branch-misses             #    0.55% of all branches
      
             0.656489187 seconds time elapsed
      
             0.655558000 seconds user
             0.133799000 seconds sys
      e6a7f1417a25
      History
      Write directly to PyBytesObject
      ijl authored
      perf stat -B -e cache-references,cache-misses,cycles,instructions,branches,faults,migrations,branch-misses -g --delay 250 ./bench/run_func data/twitter.json.xz dumps
      
      before:
              96,346,033      cache-references
               2,396,956      cache-misses              #    2.488 % of all cache refs
           2,819,207,654      cycles
           6,903,811,887      instructions              #    2.45  insn per cycle
           1,527,040,323      branches
                 175,425      faults
                       0      migrations
               9,638,830      branch-misses             #    0.63% of all branches
      
             0.995690355 seconds time elapsed
      
             0.949150000 seconds user
             0.978124000 seconds sys
      
      after:
              58,807,500      cache-references
               2,276,541      cache-misses              #    3.871 % of all cache refs
           1,535,556,207      cycles
           5,080,111,489      instructions              #    3.31  insn per cycle
           1,088,522,837      branches
                     220      faults
                       0      migrations
               6,015,137      branch-misses             #    0.55% of all branches
      
             0.656489187 seconds time elapsed
      
             0.655558000 seconds user
             0.133799000 seconds sys