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Sun Aug 28 22:23:42 CEST 2011 · https://mail.python.org/pipermail/python-dev/2011-August/113256.html

Am 28.08.2011 22:01, schrieb Antoine Pitrou:
> 
>> - the iobench results are between 2% acceleration (seek operations),
>>   16% slowdown for small-sized reads (4.31MB/s vs. 5.22 MB/s) and
>>   37% for large sized reads (154 MB/s vs. 235 MB/s). The speed
>>   difference is probably in the UTF-8 decoder; I have already
>>   restored the "runs of ASCII" optimization and am out of ideas for
>>   further speedups. Again, having to scan the UTF-8 string twice
>>   is probably one cause of slowdown.
> 
> I don't think it's the UTF-8 decoder because I see an even larger
> slowdown with simpler encodings (e.g. "-E latin1" or "-E utf-16le").

But those aren't used in iobench, are they?

Regards,
Martin

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[Python-Dev] PEP 393 review