[Bug 206280] KMail recreates message list while processing of network operations (very slow IMAP)

[David Jander]

https://bugs.kde.org/show_bug.cgi?id=206280


David Jander <djander at gmail.com> changed:

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                 CC|                            |djander at gmail.com




--- Comment #1 from David Jander <djander gmail com>  2010-07-19 11:46:02 ---
Yes, I can confirm this.
KMail has gotten horribly slow going from KDE-3.5.10 to 4.x. I work on IMAP
with many public folders, some of them with up to 45000 messages, and KMail is
unusably slow when working on those folders. It takes several minutes just to
display the contents of one such folder, and moving a few thousand e-mails to
another folder (which whould be a server-side action) is undoable. Kmail
consumes 100% CPU for several minutes, and then shows an error message
complaining about server timeout.
With KDE 3.5.10, it worked much faster.
Currently using KDE 4.3.2 on kubuntu 9.10.

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