[Bug 194951] New: slow (almost unresponsive) after startup when checking for new mail when kmail already manages very many emails (100, 000)

[Arne Babenhauserheide]

https://bugs.kde.org/show_bug.cgi?id=194951

           Summary: slow (almost unresponsive) after startup when checking
                    for new mail when kmail already manages very many
                    emails (100,000)
           Product: kmail
           Version: 1.11.3
          Platform: unspecified
        OS/Version: Linux
            Status: UNCONFIRMED
          Severity: normal
          Priority: NOR
         Component: general
        AssignedTo: kdepim-bugs at kde.org
        ReportedBy: arne_bab at web.de


Version:           1.11.3 (using 4.2.3 (KDE 4.2.3), Gentoo)
Compiler:          x86_64-pc-linux-gnu-gcc
OS:                Linux (x86_64) release 2.6.29-hh2

I have about 100,000 emails in my account (at least that's what "find
.kde/share/apps/kmail/mail says"), and when I check for new mail after kmail
started, it becomes so slow that it's almost unresponsive. 

Some time after the mails are downloaded it gets back to normal (nice) speed. 

Subsequent checking for new mail also has a speed penalty, but not as severe as
the first check after startup. 

For me this means that I can't just fire up kmail to quickly check my mail.
Instead I have to either keep it running at all times or go fetch something to
eat/drink after telling it to check my mail (or idling in front of the
computer). 

Note: "du -h .kde/share/apps/kmail/mail" reports over 3 GiB.

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