performance measurements

Each table row shows performance measurements for this Nuitka program with a particular command-line input value N.

 N  CPU secs Elapsed secs Memory KB Code B ≈ CPU Load
15.555.569,864367  1% 100% 1% 1%
15.545.549,716367  1% 100% 1% 1%
15.535.549,652367  92% 1% 9% 0%

Read the ↓ make, command line, and program output logs to see how this program was run.

Read iobench benchmark to see what this program should do.

 notes

 iobench Nuitka program source code

import os, time

def measure(func, repetitions, size):
    t0 = time.time()
    func(repetitions, size)
    print(
        func,
        "%d bytes, %.2fus per write" % (
            size,
            (time.time() - t0) / repetitions * 1000 * 1000
        )
    )

def fwrite(repetitions, size):
    fd = os.open("/dev/null", os.O_WRONLY)
    for i in range(repetitions):
        os.write(fd, b" " * size)

def fread(repetitions, size):
    fd = os.open("/dev/full", os.O_RDONLY)
    for i in range(repetitions):
        os.read(fd, size)

def file_write(repetitions, size):
    f = open("/dev/null", "w")
    for i in range(repetitions):
        f.write(" " * size)
    f.flush()

def file_read(repetitions, size):
    f = open("/dev/full")
    for i in range(repetitions):
        f.read(size)

if __name__ == '__main__':
    measure(fread, 1000000, 100)
    measure(fwrite, 1000000, 100)
    measure(fread, 1000000, 1000)
    measure(fwrite, 1000000, 1000)
    measure(fread, 100000, 10000)
    measure(fwrite, 100000, 10000)
    measure(file_read, 1000000, 100)
    measure(file_write, 1000000, 100)
    measure(file_read, 1000000, 1000)
    measure(file_write, 1000000, 1000)
    measure(file_read, 100000, 10000)
    measure(file_write, 100000, 10000)

 make, command-line, and program output logs

Wed, 19 Jun 2019 09:20:53 GMT

MAKE:
make[1]: Vstupuje se do adresáře „/home/dundee/workspace/benchmarksgame/bencher/tmp/iobench/tmp“
nuitka3 --remove-output iobench.nuitka
cp iobench.nuitka.bin iobench.nuitka_run
make[1]: Opouští se adresář „/home/dundee/workspace/benchmarksgame/bencher/tmp/iobench/tmp“
3.98s to complete and log all make actions

COMMAND LINE:
./iobench.nuitka_run 1

PROGRAM OUTPUT NOT CHECKED:
<compiled_function fread at 0x7fc969d6f748> 100 bytes, 0.75us per write
<compiled_function fwrite at 0x7fc969d6fac8> 100 bytes, 0.74us per write
<compiled_function fread at 0x7fc969d6f748> 1000 bytes, 0.85us per write
<compiled_function fwrite at 0x7fc969d6fac8> 1000 bytes, 0.81us per write
<compiled_function fread at 0x7fc969d6f748> 10000 bytes, 1.26us per write
<compiled_function fwrite at 0x7fc969d6fac8> 10000 bytes, 0.95us per write
<compiled_function file_read at 0x7fc969d6f668> 100 bytes, 0.21us per write
<compiled_function file_write at 0x7fc969d6f828> 100 bytes, 0.19us per write
<compiled_function file_read at 0x7fc969d6f668> 1000 bytes, 0.73us per write
<compiled_function file_write at 0x7fc969d6f828> 1000 bytes, 0.46us per write
<compiled_function file_read at 0x7fc969d6f668> 10000 bytes, 4.21us per write
<compiled_function file_write at 0x7fc969d6f828> 10000 bytes, 1.48us per write

Revised BSD license

  Home   Conclusions   License   Play