Version: Git (master) (using KDE 4.6.1) OS: Linux I moved ~600 messages to the trash while nepomuk was not available which triggered a lot of messages being written to xsession-error. Moving a message took ~1 second. While the messages where moved or to be more precise started to appear in the local trash folder, I clicked on an imap's inbox and its message list was was empty. Only after all messages had appeared in the trash folder the imap's inbox message list was loaded. This might be akonadi's fault yet nevertheless the expected behaviour is to not have moving emails block another folder's (message list) retrieval. Reproducible: Always
Thank you for your report and sorry for taking a long time to reply to it. 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