Review Request 117789: Optimize word count in PlainTextExtractor.

[Milian Wolff]

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This is an automatically generated e-mail. To reply, visit:
https://git.reviewboard.kde.org/r/117789/
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Review request for kdelibs and Vishesh Handa.


Repository: kfilemetadata


Description
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Optimize word count in PlainTextExtractor.

Regular expressions are notoriously slow. Implementing a simple
word-count directly in C++ is much faster, as shown by the benchmark:

Before:
     702.0 msecs per iteration (total: 7,020, iterations: 10)
After:
     125.5 msecs per iteration (total: 1,256, iterations: 10)

Make the plaintext extractor benchmark more meaningful.

It now operates on a larger file and uses QBENCHMARK to actually get some data.


Diffs
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  autotests/indexerextractortests.cpp 1cb8e65da7d764eab1923054659ae5841104de2d 
  src/extractors/plaintextextractor.cpp 536e02d843f24dbbc19035029896b9e696e8b302 

Diff: https://git.reviewboard.kde.org/r/117789/diff/


Testing
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Thanks,

Milian Wolff

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