[Kde-pim] Review Request 111469: Don't use 1.5 GB of memory when importing big maildir

[Commit Hook]

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This review has been submitted with commit 65d2a0b2409a4f7d85025897f78f41b4d3349c28 by Sergio Martins to branch master.

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On July 10, 2013, 10:20 p.m., Sergio Luis Martins wrote:
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> http://git.reviewboard.kde.org/r/111469/
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> (Updated July 10, 2013, 10:20 p.m.)
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> Review request for KDEPIM and Volker Krause.
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> Description
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> The code was creating 70k ItemCreateJobs first, and then starting them all. That makes mem usage reach a peak of 1.5GB here.
> It does have code to do one event loop iteration every 20 e-mails, but that only makes it fire one ItemCreateJob, so they pile up anyway.
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> Solution is to throttle ItemCreationJob creation.
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> CPU-wise, this solution and the old one are equivalent, they are both equally fast.
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> Diffs
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>   resources/maildir/retrieveitemsjob.cpp 6afedec 
>   resources/maildir/retrieveitemsjob.h dfc7095 
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> Diff: http://git.reviewboard.kde.org/r/111469/diff/
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> Testing
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> Imported a big maildir. Mem goes to 60MB max
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> Thanks,
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> Sergio Luis Martins
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