Review Request 128944: Reduce temporary allocations in the DesktopFileParser

[Milian Wolff]

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src/lib/plugin/desktopfileparser.cpp (line 359)
<https://git.reviewboard.kde.org/r/128944/#comment66897>

    if this compiles before and after, then you should set the defines that prevent implicit string conversions and fix all cases where this occurs


- Milian Wolff


On Sept. 20, 2016, 11:19 a.m., Aleix Pol Gonzalez wrote:
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> This is an automatically generated e-mail. To reply, visit:
> https://git.reviewboard.kde.org/r/128944/
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> (Updated Sept. 20, 2016, 11:19 a.m.)
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> 
> Review request for KDE Frameworks.
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> Repository: kcoreaddons
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> Description
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> While analising plasmashell under heaptrack, one of the sore spots is temporary allocations within DesktopFileParser. This improves the situation by:
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> * Only converting to QString/utf8 once.
> * Using QStringRef instead of fully splitting QString to parse them.
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> Diffs
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>   src/lib/plugin/desktopfileparser.cpp 2eb198d 
>   src/lib/plugin/desktopfileparser_p.h c61b297 
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> Diff: https://git.reviewboard.kde.org/r/128944/diff/
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> 
> Testing
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> tests still pass, plasma still works normally.
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> heaptrack plasmashell:
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> after:
>         allocations:            4169312
>         leaked allocations:     83225
>         temporary allocations:  606902
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> before:
>         allocations:            4680691
>         leaked allocations:     84825
>         temporary allocations:  819292
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> Thanks,
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> Aleix Pol Gonzalez
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>

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