[issue21486] optimize v4 & v6 netmask parsing

[Antoine Pitrou]

Antoine Pitrou added the comment:

Updated patch, also optimizing v6 netmask parsing (same principle).

Before patch:

$ ./python -m timeit -s "import ipaddress" "net = ipaddress.IPv6Network(('2001:db8::', 96))"
10000 loops, best of 3: 26.1 usec per loop

$ ./python -m timeit -s "import ipaddress" "net = ipaddress.IPv4Network(('10.0.0.0', 23))"
100000 loops, best of 3: 17 usec per loop

After patch:

$ ./python -m timeit -s "import ipaddress" "net = ipaddress.IPv6Network(('2001:db8::', 96))"
100000 loops, best of 3: 13.8 usec per loop

$ ./python -m timeit -s "import ipaddress" "net = ipaddress.IPv4Network(('10.0.0.0', 23))"
100000 loops, best of 3: 14.3 usec per loop

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title: optimize v4 netmask parsing -> optimize v4 & v6 netmask parsing
Added file: http://bugs.python.org/file35232/netmask.patch

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Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue21486>
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