[kmail] [Bug 183348] Kmail filter extremely slow

[Tim Holy via KDE Bugzilla]

https://bugs.kde.org/show_bug.cgi?id=183348

Tim Holy <holy at pcg.wustl.edu> changed:

           What    |Removed                     |Added
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                 CC|                            |holy at pcg.wustl.edu

--- Comment #10 from Tim Holy <holy at pcg.wustl.edu> ---
I'm using Kubuntu 16.04 (Kontact 5.1.3). I copied several hundred thousand
emails over from an older install. I realized I had made a mistake in ordering
the priority of my filters, so I modified them and then selected a folder with
about 33K messages in it, selected all messages, and hit Ctrl-J. The progress
was extremely slow, under 10 messages per second, running at least 2 threads
(one kontact and one mysql) constantly. Note that, because this is a new
installation, I have only 6 filters defined so far (in contrast to my hundreds
of filters in my old installation), and the filter rules are extremely simple
(all single-rule, most looking at List-Id).

While preparing to comment here, I went and selected Help>Kontact Introduction
to get my version number. When I came back to the folder, the filtering had
stopped. I'm not certain whether it finished or terminated. If it finished,
then I have a theory: display of folder contents is interfering with progress
in filtering.

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