Wireshark-bugs: [Wireshark-bugs] [Bug 11980] The filtering speed is impacted by commit b344107d7
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From: bugzilla-daemon@xxxxxxxxxxxxx
Date: Sun, 10 Jan 2016 17:17:40 +0000

Comment # 8 on bug 11980 from 
Theory and practice do not seem to match, either priming or doing the
dissection with additional primed fields is expensive. I am inclined to keep
the previous patch as the architectural implication is nice (ui -> dissection)
and have pushed a patch that should address the performance issue.

I am also tempted to mark dynamically changing coloring rule columns and tree
items as unsupported for now. Otherwise the whole list needs to be re-dissected
after changing a single coloring rule... probably not worth it.

Coloring rules in display filters are also not supported because it needs
additional work in detecting whether it is in use in a dfilter (should be easy)
and additional complexity to optimize (new: first calc while reading packets;
avoid second calc when adding it to the Qt packet list; but keep calculation
when a packet is selected and the full tree needs to be known)

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