How to get execution millisecond time of a command in zsh?

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The time only print the the execution second time of a command.



If there is a solution like IPython's powerful timeit magic command, great.







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    up vote
    1
    down vote

    favorite












    The time only print the the execution second time of a command.



    If there is a solution like IPython's powerful timeit magic command, great.







    share|improve this question





















      up vote
      1
      down vote

      favorite









      up vote
      1
      down vote

      favorite











      The time only print the the execution second time of a command.



      If there is a solution like IPython's powerful timeit magic command, great.







      share|improve this question











      The time only print the the execution second time of a command.



      If there is a solution like IPython's powerful timeit magic command, great.









      share|improve this question










      share|improve this question




      share|improve this question









      asked Jul 4 at 0:57









      acgtyrant

      23719




      23719




















          2 Answers
          2






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          up vote
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          zsh's time uses the TIMEFMT variable to control the format. By default, this is %J %U user %S system %P cpu %*E total, which produces the following.



          $ time sleep 2
          sleep 2 0.00s user 0.00s system 0% cpu 2.002 total


          This does produce millisecond accuracy (at least for total), so perhaps your system has a different default set (lagging distro?), or has modified TIMEFMT.



          Have a look at the manual page for possible formats. I use the following in ~/.zshrc:



          TIMEFMT=$'n================nCPUt%Pnusert%*Unsystemt%*Sntotalt%*E'


          which produces the following.



          $ time sleep 2 

          ================
          CPU 0%
          user 0.003
          system 0.000
          total 2.006





          share|improve this answer




























            up vote
            1
            down vote













            The ipython timeit magic command will by default print a statistics report over several executions of your statement. The zsh reserved word time will only run your command once.



            When you only care about measuring the execution time of external commands (and not builtins and functions) you can use hyperfine. It's a program that repeatedly executes a command for you and prints some statistics.






            share|improve this answer





















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              2 Answers
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              active

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              2 Answers
              2






              active

              oldest

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              active

              oldest

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              active

              oldest

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              up vote
              4
              down vote



              accepted










              zsh's time uses the TIMEFMT variable to control the format. By default, this is %J %U user %S system %P cpu %*E total, which produces the following.



              $ time sleep 2
              sleep 2 0.00s user 0.00s system 0% cpu 2.002 total


              This does produce millisecond accuracy (at least for total), so perhaps your system has a different default set (lagging distro?), or has modified TIMEFMT.



              Have a look at the manual page for possible formats. I use the following in ~/.zshrc:



              TIMEFMT=$'n================nCPUt%Pnusert%*Unsystemt%*Sntotalt%*E'


              which produces the following.



              $ time sleep 2 

              ================
              CPU 0%
              user 0.003
              system 0.000
              total 2.006





              share|improve this answer

























                up vote
                4
                down vote



                accepted










                zsh's time uses the TIMEFMT variable to control the format. By default, this is %J %U user %S system %P cpu %*E total, which produces the following.



                $ time sleep 2
                sleep 2 0.00s user 0.00s system 0% cpu 2.002 total


                This does produce millisecond accuracy (at least for total), so perhaps your system has a different default set (lagging distro?), or has modified TIMEFMT.



                Have a look at the manual page for possible formats. I use the following in ~/.zshrc:



                TIMEFMT=$'n================nCPUt%Pnusert%*Unsystemt%*Sntotalt%*E'


                which produces the following.



                $ time sleep 2 

                ================
                CPU 0%
                user 0.003
                system 0.000
                total 2.006





                share|improve this answer























                  up vote
                  4
                  down vote



                  accepted







                  up vote
                  4
                  down vote



                  accepted






                  zsh's time uses the TIMEFMT variable to control the format. By default, this is %J %U user %S system %P cpu %*E total, which produces the following.



                  $ time sleep 2
                  sleep 2 0.00s user 0.00s system 0% cpu 2.002 total


                  This does produce millisecond accuracy (at least for total), so perhaps your system has a different default set (lagging distro?), or has modified TIMEFMT.



                  Have a look at the manual page for possible formats. I use the following in ~/.zshrc:



                  TIMEFMT=$'n================nCPUt%Pnusert%*Unsystemt%*Sntotalt%*E'


                  which produces the following.



                  $ time sleep 2 

                  ================
                  CPU 0%
                  user 0.003
                  system 0.000
                  total 2.006





                  share|improve this answer













                  zsh's time uses the TIMEFMT variable to control the format. By default, this is %J %U user %S system %P cpu %*E total, which produces the following.



                  $ time sleep 2
                  sleep 2 0.00s user 0.00s system 0% cpu 2.002 total


                  This does produce millisecond accuracy (at least for total), so perhaps your system has a different default set (lagging distro?), or has modified TIMEFMT.



                  Have a look at the manual page for possible formats. I use the following in ~/.zshrc:



                  TIMEFMT=$'n================nCPUt%Pnusert%*Unsystemt%*Sntotalt%*E'


                  which produces the following.



                  $ time sleep 2 

                  ================
                  CPU 0%
                  user 0.003
                  system 0.000
                  total 2.006






                  share|improve this answer













                  share|improve this answer



                  share|improve this answer











                  answered Jul 4 at 1:09









                  Sparhawk

                  8,24963287




                  8,24963287






















                      up vote
                      1
                      down vote













                      The ipython timeit magic command will by default print a statistics report over several executions of your statement. The zsh reserved word time will only run your command once.



                      When you only care about measuring the execution time of external commands (and not builtins and functions) you can use hyperfine. It's a program that repeatedly executes a command for you and prints some statistics.






                      share|improve this answer

























                        up vote
                        1
                        down vote













                        The ipython timeit magic command will by default print a statistics report over several executions of your statement. The zsh reserved word time will only run your command once.



                        When you only care about measuring the execution time of external commands (and not builtins and functions) you can use hyperfine. It's a program that repeatedly executes a command for you and prints some statistics.






                        share|improve this answer























                          up vote
                          1
                          down vote










                          up vote
                          1
                          down vote









                          The ipython timeit magic command will by default print a statistics report over several executions of your statement. The zsh reserved word time will only run your command once.



                          When you only care about measuring the execution time of external commands (and not builtins and functions) you can use hyperfine. It's a program that repeatedly executes a command for you and prints some statistics.






                          share|improve this answer













                          The ipython timeit magic command will by default print a statistics report over several executions of your statement. The zsh reserved word time will only run your command once.



                          When you only care about measuring the execution time of external commands (and not builtins and functions) you can use hyperfine. It's a program that repeatedly executes a command for you and prints some statistics.







                          share|improve this answer













                          share|improve this answer



                          share|improve this answer











                          answered Jul 12 at 12:20









                          Lucas

                          1,913617




                          1,913617






















                               

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