Python Interpreters Benchmarks
x64 ArchLinux : AMD® Ryzen 7 4700U®

 performance measurements

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

 N  CPU secs Elapsed secs Memory KB Code B ≈ CPU Load
12.993.0310,512367  1% 2% 0% 0% 100% 0% 0% 1%

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

Read  benchmark to see what this program should do.

 notes

Python 3.3.1 (default, Apr 11 2013, 12:45:45)
[GCC 4.7.2] on linux

  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

 Sun, 30 Jul 2023 10:51:11 GMT

COMMAND LINE:
 /usr/bin/python3 iobench.python3 1

PROGRAM OUTPUT NOT CHECKED:
<function fread at 0x7f82b21d9080> 100 bytes, 0.31us per write
<function fwrite at 0x7f82b21d8f40> 100 bytes, 0.25us per write
<function fread at 0x7f82b21d9080> 1000 bytes, 0.38us per write
<function fwrite at 0x7f82b21d8f40> 1000 bytes, 0.31us per write
<function fread at 0x7f82b21d9080> 10000 bytes, 0.67us per write
<function fwrite at 0x7f82b21d8f40> 10000 bytes, 0.38us per write
<function file_read at 0x7f82b21d91c0> 100 bytes, 0.09us per write
<function file_write at 0x7f82b21d9120> 100 bytes, 0.08us per write
<function file_read at 0x7f82b21d91c0> 1000 bytes, 0.53us per write
<function file_write at 0x7f82b21d9120> 1000 bytes, 0.35us per write
<function file_read at 0x7f82b21d91c0> 10000 bytes, 3.62us per write
<function file_write at 0x7f82b21d9120> 10000 bytes, 2.01us per write

Revised BSD license

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