When moving a lot of messages (~8000) from mixed maildir ressource to maildir ressource mail responds very slow. This means it freezes for a while, then gui was refreshed and again. This effect seems to be same on opening a maildir ressource folder containing a lot of messages or marking all messages in this folder. Reproducible: Always Steps to Reproduce: 1. go to a folder containing a lot of msg (> 5000) 2. select all 3. right click -> move msg to other maildir ressource folder Actual Results: - files are moved but gui hangs during move process for longer time Expected Results: - gui should be stay in usable state on messages move is in processs I moved from mixed maildir ressource to maildir ressource.
Thank you for your report, Christoph. As KDEPIM SC 4 and Akonadi 1 is unmaintained, I am closing it. For the case of a pure maildir I reported this issue as: Bug 364114 - moving a folder within one maildir resource is extremely slow and inefficient I bet the behavior with mixedmaildir resource would be similar to what I observed. But feel free to create a bug report about moving within mixedmaildir and mention it as related in above bug report or add your findings to my bug report in case they are similar enough.