Review Request 124811: KIconLoader: speed up hasIcon/iconPath by using the on-disk cache from loadIcon

[Volker Krause]

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Sorry, this does not change the KMail case, it's still hitting the disk for the first icon of each type requested via QIcon::fromTheme, after that the in-memory cache kicks in.

IIUC the problem is that on the pure QIcon::fromTheme path, the icon never actually makes it into the persistent cache. If it is in there already, it is properly retrieved it seems.

- Volker Krause


On Aug. 19, 2015, 7:25 a.m., David Faure wrote:
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> This is an automatically generated e-mail. To reply, visit:
> https://git.reviewboard.kde.org/r/124811/
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> (Updated Aug. 19, 2015, 7:25 a.m.)
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> Review request for KDE Frameworks, Christoph Feck and Volker Krause.
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> Repository: kiconthemes
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> Description
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> This makes QIcon::fromTheme() much faster, for all cases where we have loaded the
> icon once before (including in another process).
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> Diffs
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>   autotests/kiconloader_unittest.cpp 6b60e7ebfc970c94ae865d56c4e33a8034b4fcee 
>   src/kiconloader.cpp db3aa8f8fd6f8fb706edcb27cce073c36831934d 
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> Diff: https://git.reviewboard.kde.org/r/124811/diff/
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> Testing
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> The unittest has a way to see if KIconLoader used the cache or searched on disk, with the newly exported global int. I couldn't think of a better way.
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> I'll let Volker do the real-world testing and measure the overall impact as he did previously.
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> Thanks,
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> David Faure
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>

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