performance measurements
Each table row shows performance measurements for this Pyston program with a particular command-line input value N.
| N | CPU secs | Elapsed secs | Memory KB | Code B | ≈ CPU Load |
|---|
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 Pyston program source code
import os, time
def measure(func, num1, num2):
t0 = time.time()
func(num1, num2)
print func.__code__.co_name, "%d bytes, %.2fus per write" % (
num2, (time.time() - t0) / num1 * 1000 * 1000)
def fwrite(num, num2):
fd = os.open("/dev/null", os.O_WRONLY)
for i in xrange(num):
os.write(fd, " " * num2)
def fread(num, num2):
fd = os.open("/dev/full", os.O_RDONLY)
for i in xrange(num):
os.read(fd, num2)
def file_write(num, num2):
f = open("/dev/null", "w")
for i in xrange(num):
f.write(" " * num2)
f.flush()
def file_read(num, num2):
f = open("/dev/full")
for i in xrange(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
Wed, 28 Sep 2022 09:10:02 GMT
COMMAND LINE:
/usr/bin/pyston iobench.pyston 1
PROGRAM FAILED
PROGRAM OUTPUT NOT CHECKED:
File "iobench.pyston", line 6
print func.__code__.co_name, "%d bytes, %.2fus per write" % (
^
SyntaxError: invalid syntax