[Kde-pim] Review Request: Reuse QString instances in parseAddrList

[Commit Hook]

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This review has been submitted with commit 21c6a7aa3d27e944338ffdb0d31f680aa3f8e661 by Milian Wolff to branch master.

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On Oct. 15, 2012, 12:17 p.m., Milian Wolff wrote:
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> (Updated Oct. 15, 2012, 12:17 p.m.)
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> 
> Review request for KDEPIM and KDEPIM-Libraries.
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> Description
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> Leverage QString implicit sharing to reduce memory consumption. In my tests, the memory decreases roughly by ~20MB from a total of 300 down to about 280MB.
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> My question is rather, whether this really needs to be thread safe or not. Maybe also some performance testing is required?
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> Diffs
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>   plugins/akonadi_serializer_mail.h cf43949 
>   plugins/akonadi_serializer_mail.cpp 096073a 
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> Diff: http://git.reviewboard.kde.org/r/106836/diff/
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> Testing
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> Ran KMail, not noticeably slower but uses less ram. Nothing else seems to have changed.
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> Screenshots
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> memory consumption before patch
>   http://git.reviewboard.kde.org/r/106836/s/776/
> memory consumption after patch
>   http://git.reviewboard.kde.org/r/106836/s/777/
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> Thanks,
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> Milian Wolff
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>

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