OMG text processing performance 6.7 - 9.5

J. Landman Gay jacque at hyperactivesw.com
Tue Feb 4 14:21:09 EST 2020


On 2/4/20 12:43 PM, Richard Gaskin via use-livecode wrote:
> J. Landman Gay wrote:
>> On 2/3/20 2:19 PM, hh via use-livecode wrote:
>>> Parse1 is here always at least 30% faster than Parse2.
>>
>> I'm seeing the same thing, only more so. I searched for "the" in a 424K text file:
>>
>> parse1 = 11 ms
>> parse2 = 111 ms
> 
> Hmmm....  It may be that Mark Waddingham was wrong in the guidance he gave earlier about 
> Unicode vs memcopy, but I wonder if there may be something else here.
> 
> Were you using the same text I tested with, the Gutenberg text file for "Call of the Wild"?
> 
> https://www.gutenberg.org/files/215/215-0.txt
> 

I just tried that file. This is a shorter file than the one I used before. This looks like the 
two are almost equal, with parse1 coming out slightly ahead. Here are a string of results, the 
first item in each row is parse1 and the second item is parse2:

2,3
2,3
3,2
2,3
2,3
3,2
2,3
3,2
2,3
3,3
3,2
2,3
2,3
2,4
3,3
3,3
2,2
2,3

-- 
Jacqueline Landman Gay         |     jacque at hyperactivesw.com
HyperActive Software           |     http://www.hyperactivesw.com





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