> I'm running into some performance / memory bottlenecks on large lists.
> Is there any easy way to minimize/optimize memory usage?
>
> Simple str() and unicode objects() [Python 2.6.4/Linux/x86]:
>>>> sys.getsizeof('') 24 bytes
>>>> sys.getsizeof('0') 25 bytes
>>>> sys.getsizeof(u'') 28 bytes
>>>> sys.getsizeof(u'0') 32 bytes
A Python str object contains much more than just the raw string. On a
32bit system it contains:
* a pointer to its type (ptr with 4 bytes)
* a reference counter (ssize_t, 4 bytes)
* the length of the string (ssize_t, 4 bytes)
* the cached hash of the string (long, 8 bytes)
* interning state (int, 4 bytes)
* a null terminated char array for its data.
Christian
--
http://mail.python.org/mailman/listinfo/python-list
