performance measurements
Each table row shows performance measurements for this Cython program with a particular command-line input value N.
| N | CPU secs | Elapsed secs | Memory KB | Code B | ≈ CPU Load |
|---|---|---|---|---|---|
| 1 | 0.02 | 0.02 | ? | 366 | 0% 0% 0% 0% 0% 100% 0% 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 Cython program source code
import os, time
cdef measure(func, int num1, int num2):
t0 = time.time()
func(num1, num2)
print(
func,
"%d bytes, %.2fus per write" % (
num2,
(time.time() - t0) / num1 * 1000 * 1000
)
)
cdef fwrite(int num, int num2):
fd = os.open("/dev/null", os.O_WRONLY)
for i in range(num):
os.write(fd, b" " * num2)
cdef fread(int num, int num2):
fd = os.open("/dev/full", os.O_RDONLY)
for i in range(num):
os.read(fd, num2)
cdef file_write(int num, int num2):
f = open("/dev/null", "w")
for i in range(num):
f.write(" " * num2)
f.flush()
cdef file_read(int num, int num2):
f = open("/dev/full")
for i in range(num):
f.read(num2)
if __name__ == '__main__':
measure(fread, 10000000, 100)
measure(fwrite, 10000000, 100)
measure(fread, 10000000, 1000)
measure(fwrite, 10000000, 1000)
measure(fread, 1000000, 10000)
measure(fwrite, 1000000, 10000)
measure(file_read, 10000000, 100)
measure(file_write, 10000000, 100)
measure(file_read, 10000000, 1000)
measure(file_write, 10000000, 1000)
measure(file_read, 1000000, 10000)
measure(file_write, 1000000, 10000)
make, command-line, and program output logs
Sun, 23 Apr 2023 09:13:24 GMT MAKE: make[1]: Vstupuje se do adresáře „/home/dundee/work/pybenchmarks/bencher/tmp/iobench/tmp“ cp iobench.cython `echo iobench.cython | sed 's/cython-..//' | sed 's/.cython//'`.pyx cythonize -3 -bi `echo iobench.cython | sed 's/cython-..//' | sed 's/.cython//'`.pyx Compiling /home/dundee/work/pybenchmarks/bencher/tmp/iobench/tmp/iobench.pyx because it changed. [1/1] Cythonizing /home/dundee/work/pybenchmarks/bencher/tmp/iobench/tmp/iobench.pyx make[1]: Opouští se adresář „/home/dundee/work/pybenchmarks/bencher/tmp/iobench/tmp“ 2.18s to complete and log all make actions COMMAND LINE: /usr/bin/python3 -c "import iobench" 1 PROGRAM OUTPUT NOT CHECKED: