Version: 4.8 (using KDE 4.8.0) OS: Linux Opening/retrieving an email takes 20 sec for each mail. Kmail2 is simply not useable this way. This is not a connection problem to my imap server. 20 sec looks like a value for a timeout. Reproducible: Always Steps to Reproduce: Read emails Actual Results: Opening a mail takes 20 sec. Expected Results: Clicking on the mail should open it constantly.
After fixing nepomuk, see bug #289932, it works again.
This looks like kmail2 doesn't work without nepomuk anymore.
I'm getting the same problem in KDE 4.8.2, kubuntu 12.04. Reading any email takes like 20-30 seconds to show up, disabling nepomuk had no effect. I have tried restarting akonadi, kmail and nepomuk without success, nothing relevant is shown in kmail's output. Have to test with a full system restart.
restarting seems to have fixed it.
Thank you Andreas and Elian. It is about a version of KMail which uses Nepomuk and is unmaintained. Thus closing. If you still see performance issues please open new reports. But please follow the following guide lines to avoid unnecessary work for the developers: - Ideally test with KDEPIM and Akonadi 15.08. It contains some performance improvements like the binary protocol. - Otherwise at least use KDEPIM 4.14.10 and newest Akonadi 1.13 you can get as it already contains some performance improvements. - If you can wait, please retest with KDEPIM and Akonadi 15.12 once they become available for you. Akonadi 15.12 will contain *massive* performance improvements implemented by Dan due to new database indexes, optimized queries and leveled file_db directory. All of these are in master already, so if you dare use kdesrc-build to compile KF5, kdepim and kdepim-runtime. I am using this currently and it basically moves the bottleneck to KMail (slow threading for example). It is a *huge* improvement. Thank you and greetings from KDE Randa Meetings, Martin