[Bug 260647] New: akonadi_mixedmaildir_resource is using too much memory

[Jure Repinc]

https://bugs.kde.org/show_bug.cgi?id=260647

           Summary: akonadi_mixedmaildir_resource is using too much memory
           Product: Akonadi
           Version: 1.4.80
          Platform: Compiled Sources
        OS/Version: Linux
            Status: NEW
          Severity: normal
          Priority: NOR
         Component: Mixed Maildir resource
        AssignedTo: kdepim-bugs at kde.org
        ReportedBy: jlp at holodeck1.com
                CC: kevin.krammer at gmx.at


Version:           1.4.80 (using Devel) 
OS:                Linux

A couple of weeks ago I installed KDE SC 4.6 from SVN and at this time when I
started KMail it converted all the stuff to use Akonadi. Ever since then I see
huge memory usage when I start KMail. Th process that uses the most memory is
akonadi_mixedmaildir_resource which always uses about 1200 MiB of memory. In
addition to this KMail uses 700 MiB. This is a lot more than KMail used to use
before using Akonadi. If I remember correctly ibefore the conversion only KMail
was using memory and it was at about the same level of usage than KMail now
uses

Reproducible: Always

Steps to Reproduce:
1. Convert an old non-Akonadi POP3 accout wit a lot of mail to Akonadi
2. Open KMail

Actual Results:  
akonadi_mixedmaildir_resource uses way too much memory

Expected Results:  
The memory usage should be about the same as before without Akonadi

My inbox folder which is set to open when KMail is opened has about 35000
messages which occupy about 200 MiB of storage (according to the info popup
over inbox folder in KMail). I also have more folders with more mail and most
of them are set to expire mail older than 1 month. Akonadi and KMail I'm using
are compiled on 2010-12-17

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