https://bugs.kde.org/show_bug.cgi?id=338571
--- Comment #18 from Gunter Ohrner <kdeb...@customcdrom.de> --- I'm now on KDE Neon with KDE Frameworks 5.25 and Applications 16.08 (kMail 5.3.0), see below for a detailed package list. It did not get any better, just opening my "sent" folder just took 87 seconds (!) during which kMail synced the folder twice. I guess noone want's to have forced breaks of one-and-a-half minute while working with his email client... As written above, kMail as well as the IMAP server are running locally, the system disk is an SSD and MySQL just get's hammered by Akonadi during that time. Whatever was changed between KDE 4.13 and 4.14 in this respect concerning kMail, Akonadi, IMAP and their cooperation just was no good idea and no proper fix for whatever it was intended to fix... $ COLUMNS=200 dpkg -l | egrep 'akonadi|kmail' ii akonadi-backend-mysql 4:16.08.0+p16.04+git2016082 all MySQL storage backend for Akonadi ii akonadi-contacts-data 4:16.08.0+p16.04+git2016082 all akonadi-contact data files ii akonadi-mime-data 4:16.08.0+p16.04+git2016082 all akonadi-mime - data files ii akonadi-server 4:16.08.0+p16.04+git2016082 amd64 Akonadi PIM storage service ii akonadiconsole 4:16.08.0+p16.04+git2016082 amd64 management and debugging console for akonadi ii kmail 4:16.08.0+p16.04+git2016082 amd64 full featured graphical email client ii libakonadi-kde4 4:4.14.10-1ubuntu2 amd64 library for using the Akonadi PIM data server ii libakonadi-kmime4 4:4.14.10-1ubuntu2 amd64 Akonadi MIME handling library ii libakonadiprotocolinternals1 1.13.0-8ubuntu2 amd64 libraries for the Akonadi PIM storage service ii libkf5akonadiagentbase5:amd64 4:16.08.0+p16.04+git2016082 amd64 Akonadi agent base library ii libkf5akonadicalendar5:amd64 4:16.08.0+p16.04+git2016082 amd64 library providing calendar helpers for Akonadi items ii libkf5akonadicontact5:amd64 4:16.08.0+p16.04+git2016082 amd64 Akonadi contacts access library ii libkf5akonadicore5:amd64 4:16.08.0+p16.04+git2016082 amd64 Akonadi core library ii libkf5akonadimime5:amd64 4:16.08.0+p16.04+git2016082 amd64 Akonadi MIME handling library ii libkf5akonadinotes5:amd64 4:16.08.0+p16.04+git2016082 amd64 Akonadi notes access library ii libkf5akonadiprivate5:amd64 4:16.08.0+p16.04+git2016082 amd64 libraries for the Akonadi PIM storage service ii libkf5akonadisearch-bin 4:16.08.0+p16.04+git2016082 amd64 Akonadi search library - runtime binaries ii libkf5akonadisearch-data 4:16.08.0+p16.04+git2016082 all Akonadi search library - data files ii libkf5akonadisearch-plugins:amd64 4:16.08.0+p16.04+git2016082 amd64 Akonadi search library - runtime plugins ii libkf5akonadisearchcore5:amd64 4:16.08.0+p16.04+git2016082 amd64 Akonadi search core library ii libkf5akonadisearchdebug5:amd64 4:16.08.0+p16.04+git2016082 amd64 Akonadi search debug library ii libkf5akonadisearchpim5:amd64 4:16.08.0+p16.04+git2016082 amd64 Akonadi search library ii libkf5akonadisearchxapian5:amd64 4:16.08.0+p16.04+git2016082 amd64 Akonadi search xapian library ii libkf5akonadiwidgets5:amd64 4:16.08.0+p16.04+git2016082 amd64 Akonadi widgets library In fact, these versions of kMail and Akonadi feel much more "snappy" while working with mails - just the most serious performance problem was not solved and did not improve, unfortunately. -- You are receiving this mail because: You are watching all bug changes.