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Re: Review Request 129186: [baloo] Speedup Positioncodec::encode()




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Review request for Baloo, KDE Frameworks and Vishesh Handa.
By Christian Ehrlicher.

Updated Nov. 6, 2016, 12:58 p.m.

Changes

New patch with changes from comments

Repository: baloo

Description

This patch speeds up PostingCodec::encode() by a factor of ~4 by not adding every single encoded int32 to the resulting bytearray which results in a lot of small memcpy operations. The idea is to use a preallocated QByteArray and directly encode the integers into this buffer. This makes the code a little bit more complex but the speedup should be gain enough for this.

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Testing

positoncodectest calculates the same md5sum as before.

Diffs (updated)

  • src/codecs/coding.cpp (5961077)

View Diff