On 11/14/2013 4:00 AM, Antoine Pitrou wrote:
On Wed, 13 Nov 2013 23:33:02 +0100 (CET)
christian.heimes <python-check...@python.org> wrote:
+Small string optimization
+=========================
+
+Hash functions like SipHash24 have a costly initialization and finalization
+code that can dominate speed of the algorithm for very short strings. On the
+other hand Python calculates the hash value of short strings quite often. A
+simple and fast function for especially for hashing of small strings can make
'for especially for hashing' is garbled. Delete first 'for'.
+a measurably impact on performance. For example these measurements were taken
'measurable'
+during a run of Python's regression tests. Additional measurements of other
+code have shown a similar distribution.
--
Terry Jan Reedy
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