Bug 170852

Summary:	Severe speed-regression in maildir folders
Product:	[Applications] kmail	Reporter:	Allan Sandfeld <kde>
Component:	message list	Assignee:	kdepim bugs <kdepim-bugs>
Status:	RESOLVED DUPLICATE
Severity:	normal
Priority:	NOR
Version:	unspecified
Target Milestone:	---
Platform:	Compiled Sources
OS:	Unspecified
Latest Commit:		Version Fixed In:

Description Allan Sandfeld 2008-09-11 11:05:30 UTC

Version:            (using KDE 4.1.1)
Installed from:    Compiled From Sources

After using KMail from KDE 4.1 branch for some time, I've noticed a rather severe regression in ordinary maildir folders.

If the folder contains a lot of email such as 5000, it takes 3-4 seconds to go to a new email. This makes browsing kde-commits folder very painfull.

It seems likely to be some kind of linear scan algorithm, since a folder I have with 17000 email takes a little over 10 seconds to go from email to email.

Comment 1 Allan Sandfeld 2008-09-11 11:07:46 UTC

PS. it is obviously sensitive to the number of emails in the folder. Much larger folders with more data, but fewer emails are much faster.

Comment 2 Thomas McGuire 2008-09-11 22:06:49 UTC


*** This bug has been marked as a duplicate of bug 163469 ***

Comment 3 Allan Sandfeld 2008-09-12 09:09:46 UTC

This is not a scrolling issue. While scrolling is also slow, scrolling is much faster than going to the next email