https://bugs.kde.org/show_bug.cgi?id=338571
--- Comment #20 from Gunter Ohrner <kdeb...@customcdrom.de> --- Currently slightly more than 41000 mails. It was somewhat less two years ago with kMail from KDE 4.13, but not significantly, and the performance dropped all of a sudden with the update. Thunderbird is quite snappy with a folder that size, but I like kMail more - although the extremely bad performance is definitely getting on my nerves. I tried increasing the innodb buffer size, but this did not result in any significant improvement. My impression is that there's at least one separate query issued for each mail, maybe more. This would also match the observations stated above by another user. Probably a lot less queries were issued in kMail 4.13, which also was already based on Akonadi. (KDE 4.7 was the first release that included the Akonadi-based kMail 2.) -- You are receiving this mail because: You are watching all bug changes.