[KMail Mobile] [Bug 252164] KMail very slow after unchecking serverside subscription

[Denis Kurz via KDE Bugzilla]

https://bugs.kde.org/show_bug.cgi?id=252164

Denis Kurz  changed:

   What|Removed |Added

 Status|ASSIGNED|RESOLVED
 Resolution|--- |UNMAINTAINED

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[Bug 252164] KMail very slow after unchecking serverside subscription

[Bernhard E . Reiter]

https://bugs.kde.org/show_bug.cgi?id=252164


Bernhard E. Reiter bernh...@intevation.de changed:

   What|Removed |Added

   Keywords|komo3   |
 CC||bernh...@intevation.de




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[Bug 252164] KMail very slow after unchecking serverside subscription

[Sabine Faure]

https://bugs.kde.org/show_bug.cgi?id=252164


Sabine Faure sab...@kdab.net changed:

   What|Removed |Added

 Status|NEEDSINFO   |ASSIGNED
 Resolution|WAITINGFORINFO  |




--- Comment #4 from Sabine Faure sabine kdab net  2011-01-14 22:59:02 ---
I retested this today and it works a lot better indeed:

* Opening an email to read it takes between 5 and 12 seconds
* Opening a dialogue from a tab takes about 4 s
* Launching a Composer takes about 28 s

I think this is acceptable but Volker I'll let you decide whether you wish to
close that bug or not.

N900, 4:4.6~.20110114.0754.git620f98b-1maemo1.121392

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[Bug 252164] KMail very slow after unchecking serverside subscription

[Tobias Koenig]

https://bugs.kde.org/show_bug.cgi?id=252164


Tobias Koenig to...@kde.org changed:

   What|Removed |Added

 Status|NEW |NEEDSINFO
 CC||to...@kde.org
 Resolution||WAITINGFORINFO




--- Comment #3 from Tobias Koenig tokoe kde org  2011-01-10 11:33:08 ---
Hej,

is this still the case with current version? Email performance has been
improved a lot in latest version.

Ciao,
Tobias

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[Bug 252164] KMail very slow after unchecking serverside subscription

[Volker Krause]

https://bugs.kde.org/show_bug.cgi?id=252164





--- Comment #2 from Volker Krause vkrause kde org  2010-11-29 09:14:52 ---
*** Bug 257177 has been marked as a duplicate of this bug. ***

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[Bug 252164] KMail very slow after unchecking serverside subscription

[David Faure]

https://bugs.kde.org/show_bug.cgi?id=252164


David Faure fa...@kde.org changed:

   What|Removed |Added

 CC||fa...@kde.org,
   ||vkra...@kde.org
Summary|Imap sync very slow after   |KMail very slow after
   |unchecking serverside   |unchecking serverside
   |subscription|subscription




--- Comment #1 from David Faure faure kde org  2010-09-29 23:41:02 ---
One of the issues is that while the imap resource is syncing one new big
folder, it cannot reply to other requests such as those triggered by trying to
read a mail in kmail. So these requests time out.

A dump on the scheduler showed it quite clearly:

akonadi_imap_resource_2(14416)/libakonadi Akonadi::ResourceScheduler::dump:
ResourceScheduler: Online: true
akonadi_imap_resource_2(14416)/libakonadi Akonadi::ResourceScheduler::dump: 
current task: 1362 SyncCollection collection 741
akonadi_imap_resource_2(14416)/libakonadi Akonadi::ResourceScheduler::dump: 
queue 0 0 tasks:
akonadi_imap_resource_2(14416)/libakonadi Akonadi::ResourceScheduler::dump: 
queue 1 0 tasks:
akonadi_imap_resource_2(14416)/libakonadi Akonadi::ResourceScheduler::dump: 
queue 2 0 tasks:
akonadi_imap_resource_2(14416)/libakonadi Akonadi::ResourceScheduler::dump: 
queue 3 3 tasks:
akonadi_imap_resource_2(14416)/libakonadi Akonadi::ResourceScheduler::dump:   
1672 ChangeReplay collection -12688 item 26080
akonadi_imap_resource_2(14416)/libakonadi Akonadi::ResourceScheduler::dump:   
1673 ChangeReplay collection -14000 item 26081
akonadi_imap_resource_2(14416)/libakonadi Akonadi::ResourceScheduler::dump:   
1674 ChangeReplay collection -14001 item 26082
akonadi_imap_resource_2(14416)/libakonadi Akonadi::ResourceScheduler::dump: 
queue 4 130 tasks:
akonadi_imap_resource_2(14416)/libakonadi Akonadi::ResourceScheduler::dump:   
1363 SyncCollection collection 742
akonadi_imap_resource_2(14416)/libakonadi Akonadi::ResourceScheduler::dump:   
1364 SyncCollection collection 743
akonadi_imap_resource_2(14416)/libakonadi Akonadi::ResourceScheduler::dump:   
1365 SyncCollection collection 744
akonadi_imap_resource_2(14416)/libakonadi Akonadi::ResourceScheduler::dump:   
1366 SyncCollection collection 745
[...]

So while it's getting collection 741, which takes a long time because it's a
new folder with many emails, the ChangeReplay tasks for item 26080 and
following, just time out. A bit later we could indeed see dbus timeout errors
in the debug output, for these items.

I don't know what the solution is, though; this seems like a major
architectural issue in akonadi, where synchronous dbus calls are made to
resource which could be busy with a very long task...

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