[Webkit-unassigned] [Bug 106304] [Qt] High memory consumption and memory growth in Qt5's WebKit compared to Qt4.8

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=106304


Michael Brüning <michael.bruning at digia.com> changed:

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--- Comment #4 from Michael Brüning <michael.bruning at digia.com>  2013-04-11 09:13:43 PST ---
I found the test application to also incur a higher memory use on Linux with Qt5 than on Qt 4.8.4 (tested with valgrind/massif). This is most likely due to the JS-QObject bridge now being based on the JSC C API and some additional copies in that implementation.

I found the most siginificant spikes in memory usage when using the QString test case and I suspect the changed implementation when converting strings in convertValueToQVariant to be the culprit.

I will see what we can do to get this fixed or at least lower memory usage for this.

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