[Bug 1117413] [NEW] Kmail is slow to move large amount of mails to wastebin then empty wastebin - pop account

[Philip Wyett]

Public bug reported:

Steps to Reproduce:

1. Archive a folder. Not necessary for problem to occur.
2. Select all mails in a folder 10000+ a good example amount.
3. Click on 'Move to Wastebin'

Actual Results:

Action is slow. Average is one mail processed per second.

High CPU usage. Forces system fan on constantly while action is taking
place.

Expected Results:

Expect them to be marked and moved to wastebin much faster.

No other mail application has this issue.

This is an horrific issue for those who get a lot of email. Archiving
email with this issue and cleaning out folders takes hours -
productivity loss. I now canot allow folders to have more than a certain
amount of emails in because of this issue.

This system has no imap accounts on it.

ProblemType: Bug
DistroRelease: Ubuntu 12.04
Package: kmail 4:4.8.5-0ubuntu0.1
ProcVersionSignature: Ubuntu 3.5.0-23.35~precise1-generic 3.5.7.2
Uname: Linux 3.5.0-23-generic x86_64
ApportVersion: 2.0.1-0ubuntu17.1
Architecture: amd64
Date: Wed Feb  6 15:19:18 2013
InstallationMedia: Kubuntu 12.04.1 LTS "Precise Pangolin" - Release amd64 (20120820.1)
MarkForUpload: True
ProcEnviron:
 LANGUAGE=en_GB:en
 TERM=xterm
 PATH=(custom, no user)
 LANG=en_GB.UTF-8
 SHELL=/bin/bash
SourcePackage: kdepim
UpgradeStatus: No upgrade log present (probably fresh install)

** Affects: kdepim
     Importance: Unknown
         Status: Unknown

** Affects: kdepim (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: amd64 apport-bug kubuntu precise

** Bug watch added: KDE Bug Tracking System #314523
   https://bugs.kde.org/show_bug.cgi?id=314523

** Also affects: kdepim via
   https://bugs.kde.org/show_bug.cgi?id=314523
   Importance: Unknown
       Status: Unknown

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https://bugs.launchpad.net/bugs/1117413

Title:
  Kmail is slow to move large amount of mails to wastebin then empty
  wastebin - pop account

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