[Akonadi] [Bug 338571] Performance Regression: Folder synchronisation in Akonadi 16.08 (actually in any release, starting with KDE 4.14) very slow, compared to kMail from KDE 4.13.x

[Martin Steigerwald]

https://bugs.kde.org/show_bug.cgi?id=338571

--- Comment #35 from Martin Steigerwald <Martin at Lichtvoll.de> ---
(In reply to Gunter Ohrner from comment #31)
> (In reply to Martin Steigerwald from comment #28)
> > 1) There is folder synchronisation when you enter a folder and click mails
> > in there to read them.
> 
> No, that's a misunderstanding. Switching between emails inside a single
> folder is fast.
> 
> Switching between folders is sloooooow... :)

Is this still the case? 

> > 2) As per the title you choose folder synchronisation itself taking a lot of
> > time. And well I can see this here as well. Its easily taking up half a
> > minute or more. And generating a lot of queries. Its not creating much load
> 
> That's the issue I'm having trouble with.

And well I think that are *two* issues.

1) Probably needless folder synchronisations on switching folders on IMAP
accounts. (I reported this for maildir accounts but there this seems to be
fixed).

2) Slow folder synchronisation.

I suggest to keep this bug solely for folder synchronisation speed. So if you
still see needless folder synchronisations on switching folders on IMAP
accounts, I suggest you report another bug about it and link it here.

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