[issue24870] surrogateescape is too slow

[INADA Naoki]

INADA Naoki added the comment:

On MacBook Pro (Core i5 2.6GHz), surrogateescape 1MB data takes 250ms.

In [1]: bs = bytes(range(256)) * (4 * 1024)

In [2]: len(bs)
Out[2]: 1048576

In [3]: %timeit x = bs.decode('ascii', 'surrogateescape')
1 loops, best of 3: 249 ms per loop

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Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue24870>
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