examples/shellmath/timingData.txt

   1 $ ######## Activate optimized mode as described in the README ########
   2 $ __shellmath_isOptimized=1
   3
   4 $ ######## Addition ########
   5 $ time { for ((i=0; i<100; i++)); do _shellmath_add  3.1415926  2.7182818; _shellmath_getReturnValue sum; done; }
   6 real    0m0.196s
   7 user    0m0.195s
   8 sys     0m0.000s
   9 $ time { for ((i=0; i<100; i++)); do sum=$(bc <<< "3.1415926+2.7182818"); done; }
  10 real    0m0.488s
  11 user    0m0.092s
  12 sys     0m0.384s
  13
  14 $ ######## Subtraction ########
  15 $ time { for ((i=0; i<100; i++)); do _shellmath_subtract  3.1415926  2.7182818; _shellmath_getReturnValue diff; done; }
  16 real    0m0.236s
  17 user    0m0.234s
  18 sys     0m0.001s
  19 $ time { for ((i=0; i<100; i++)); do diff=$(bc <<< "3.1415926-2.7182818"); done; }
  20 real    0m0.461s
  21 user    0m0.090s
  22 sys     0m0.388s
  23
  24 $ ######## Multiplication ########
  25 $ time { for ((i=0; i<100; i++)); do _shellmath_multiply  3.1415926 2.7182818; _shellmath_getReturnValue prod; done; }
  26 real    0m0.340s
  27 user    0m0.333s
  28 sys     0m0.005s
  29 $ time { for ((i=0; i<100; i++)); do prod=$(bc <<< "3.1415926*2.7182818"); done; }
  30 real    0m0.465s
  31 user    0m0.105s
  32 sys     0m0.377s
  33
  34 $ ######## Division ########
  35 $ time { for ((i=0; i<100; i++)); do _shellmath_divide  3.1415926/2.7182818; _shellmath_getReturnValue quot; done; }
  36 real    0m0.196s
  37 user    0m0.195s
  38 sys     0m0.000s
  39 $ time { for ((i=0; i<100; i++)); do quot=$(bc <<< "scale=8; 3.1415926/2.7182818"); done; }
  40 real    0m0.463s
  41 user    0m0.116s
  42 sys     0m0.364s