[Kde-pim] Akonadi mail performance outlook: POP3 and large maildir case

[Martin Steigerwald]

Am Freitag, 2. Mai 2014, 10:19:15 schrieb Martin Steigerwald:
> > Here are my top 3 (in the following folder sync means when you have just
> >
> > created your account and you click a folder):
> > 
> >
> > 1.) When configuring an imap account (gmail in my case) and you click a
> > folder in kmail, the sync will begin. (No special settings, just created
> > the account with the account wizard). If you click another folder now,
> > nothing happens, it will wait till the initial folder is completely
> > synced.
> > This is not exactly asynchronous and should be addressed.
> 
> I can confirm that for sync operations in a huge maildir resource which is 
> filled by POP3 agent. A sync operation blocks out KMail for minutes. Which 
> doesn´t match one of the design goals for Akonadi.
> 
> I wanted to look into this further and I actually had a look at the source. 
> All I could find there where some calls about synchronize collection tree
> with a comment that this may not be needed here, but that this wouldn´t
> matter. As I didn´t yet follow read up / understood what this call does and
> had different things to do… I didn´t get follow up on this.

Actually with the help of Sergio and David I just posted a review request that 
reduces the sync time quite considerably for me. Using KMail with POP3 and a 
large maildir is a complete different experience for me. I even read some 
threads in that kernel-ml folder again which has >245000 unread mails. 
Regarding this amount of mails in one folder there are still issues, but 
changing between folders is pretty fast now, even directly after filtering 
mails.

KMail is *much* more responsive in my setup and Akonadi maildir resource 
appears in CPU usage list only rarely or in extreme situations (like reading 
in that kernel-ml folder).

I am really excited about that.

GEO and other IMAP others: I suggest to look at the recent changes Christian 
Mollekopf commits at the moment. I bet the IMAP resource receives some good 
tuning at the moment.

-- 
Martin 'Helios' Steigerwald - http://www.Lichtvoll.de
GPG: 03B0 0D6C 0040 0710 4AFA  B82F 991B EAAC A599 84C7
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