[Akonadi] [Bug 334280] IMAP Synchronisation with GMAIL takes 13 minutes to complete !!

[Raymond Wooninck]

https://bugs.kde.org/show_bug.cgi?id=334280

--- Comment #4 from Raymond Wooninck <tittiatcoke at gmail.com> ---
(In reply to comment #3)
> The problem with gmail is that it's CONDSTORE support is broken (I think it
> was something with the tag folders?), and we therefore have to fetch all
> flags on every sync. I think the resource simply ignored flag changes

But shouldn't this generate network traffic ? Because the flags needs to be
retrieved from the server, but during this period I do not see any traffic at
all until it reaches the point where it can retrieve some new email. 

> Sorry if I introduced performance problems, but I'm generally preferring
> correctness over performance, but we can re-add optimizations as necessary.
Correctness is fine, but in this world Performance is more important to the
users. And it seems that this correctness also creates the situation that the
IMAP resource is no longer fast enough and starts blocking itself. (As reported
in the other bug).  

I guess that the IMAP resource now has reached a point where its developers
should decide what it actually supports. If the requirement is that it needs a
correct CONDSTORE, then support for gmail should be dropped. Maybe moving the
gmail support to a separate resource would be much better, so that this
specific gmail resource can have all the things required to support a broken
GMAIL.

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