Review Request: Fix KArchiveFile::copyTo() for large files

[Oswald Buddenhagen]

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that chunk size is ridiculously small by today's standards => needless syscalls => cpu waste => battery waste.
i think i'd start with 1MB, unless the data source is timed to be *slow* ...

- Oswald


On 2010-08-08 20:00:59, Christoph Feck wrote:
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> http://reviewboard.kde.org/r/4938/
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> (Updated 2010-08-08 20:00:59)
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> Review request for kdelibs.
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> Summary
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> This fixes KArchiveFile::copyTo() to read in chunks (same as KArchive::addLocalFile(), i.e. 8192 byte chunks) instead of loading the whole file into a single QByteArray (and overflow large files due to that).
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> This addresses bug 237124.
>     https://bugs.kde.org/show_bug.cgi?id=237124
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> Diffs
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>   /trunk/KDE/kdelibs/kdecore/io/karchive.cpp 1160676 
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> Diff: http://reviewboard.kde.org/r/4938/diff
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> Testing
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> I successfully downloaded and installed the UNSO NOMAD catalog mentioned in the bug report using the KStars GHNS dialog. During download and copying/extracting the RES memory size of process kstars did not exceed 60 MB. The download file size was 1450631611 (1.35 GiB), the extracted destination file size was 2173117930 (2.02 GiB).
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> Thanks,
> 
> Christoph
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>

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