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As we check the icAllocator's slots on shouldRunGC() we should also
check shouldRunGC() when adding slots. Otherwise we might never run the
GC when only allocating InternalClasses. In addition, account for the
"unmanaged" size of the PropertyAttributes that are part of the
InternalClass objects. Those can be large.
In cases where an excessive number of large InternalClass objects is
created the garbage collector is now invoked frequently, which costs a
significant number of CPU cycles, but prevents the memory usage from
growing indefinitely.
Task-number: QTBUG-58559
Change-Id: Icf102cb6100f6dba212b8bffe1c178897880eda0
Reviewed-by: Lars Knoll <lars.knoll@qt.io>
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The parent pointer is only kept so that we can update the parent's
transitions when removing a child. There is no need to keep the parents
alive for the children.
Fixes: QTBUG-58559
Change-Id: Ia28183966bde6d478ca030fe11195489925dfc13
Reviewed-by: Simon Hausmann <simon.hausmann@qt.io>
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We want to keep the weak values alive while the destruction callbacks
are running, so that they can still access them. We set them to
undefined later anyway because we expect the destruction callbacks to
mess with the values. Therefore there is no point in also setting them
in between.
Fixes: QTBUG-72137
Change-Id: I83f70230f5b4ad2761c74770f975b14a5ca71f18
Reviewed-by: Lars Knoll <lars.knoll@qt.io>
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Such WeakValues are kept alive until the respective QObject is deleted.
Therefore they are quite expensive. In this case we don't actually need
a copy as on retrieval we only want a ReturnValue and on inserting we
just want to replace the value in the map.
Fixes: QTBUG-71817
Change-Id: I385c55140337d468289046243941077ba1ff61a3
Reviewed-by: Erik Verbruggen <erik.verbruggen@qt.io>
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With the new block based allocator introduced in 5.9, these variables have no effect anymore.
Also removed or modified the related autotests.
Change-Id: I3acbdd89ef75b93cebb065313e689e0a360d8687
Reviewed-by: Simon Hausmann <simon.hausmann@qt.io>
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This commit adds a small test that exercises a number of code paths
inside qv4mm.cpp which are normally gated via environment variables.
Change-Id: Ibe959387a9b86ce68df258513446d2165fe06ee2
Reviewed-by: Simon Hausmann <simon.hausmann@qt.io>
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