https://bugzilla.novell.com/show_bug.cgi?id=773992 https://bugzilla.novell.com/show_bug.cgi?id=773992#c0 Summary: Kmail so so so SLOW when many mails in folders Classification: openSUSE Product: openSUSE 12.2 Version: Beta 2 Platform: x86-64 OS/Version: openSUSE 12.2 Status: NEW Severity: Normal Priority: P5 - None Component: KDE4 Applications AssignedTo: kde-maintainers@suse.de ReportedBy: marc.derumaux@free.fr QAContact: qa-bugs@suse.de Found By: --- Blocker: --- User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:13.0) Gecko/20100101 Firefox/13.0.1 I have many mails in kmail folder and I experience on brand new 12.2 very slow response, that make kmail unusable as working tool. I've been using Kmail for 10 years, with many satifaction until last year, when I updated kde 4.4 to kde 4.7 in my opensuse 11.4... Since then, akonadi takes care of mail database and kmail became very slow. It's almost unusable... But I've been very very patient and kept praying for better days. I'm counting very much on new 12.2 to have better integration of akonadi and kmail, to make it as fast as it was before akonadi. I believe in developper's choice with akonadi for future, I also guess that developpers of Kmail use kmail as usual tool, and that they also have quite many mails in their folders. And for sure, they don't keep satisfied while waiting several minutes for a mail to appear on screen... So there must be a set of parameters that makes akonadi less ressource consuming and faster in the end. And I can't believe that extract 4000 lines in mysql to print the mail list, nor fetching one mail in mysql to get it on screen need more than a few seconds ! That task could be done very fast by kmail before akonadi... I join a few screen capture : - my kmail window working alone on my computer (x64, 1.7GHz dual core, 2Go RAM) and waiting for the mail to be fetch in database... - a "top" result showing akonadi at work on CPU - an "iotop" result showing akonadi at work on HDD - a "free" result for swap memory usage At first, when I boot, log and launch kontact, kmail is pretty fast. But since I have a look in three or four large folders, it seems akonadi tries to bring all the mails in RAM and all the system gets very slow, with high HDD usage. the main difference I noticed between 11.4/KDE4.7 and 12.2 is that akonadi seems to be limited to around 50% of ressources, making things better for other apps (but still bad for kmail). Hope this can be solved for final release and thanks to the developpers for the work that has been achieved ! Best regards, Marc Reproducible: Always Steps to Reproduce: 1. load big kmail folders 2. visit several big folders for a few minutes 3. after a while, HDD works more and more, and kmail is not refreshed before long minutes (or much more sometimes). Actual Results: Kmail so slow that it cannot be used as working tool. I've been using it for so long that I don't want to change to evolution nor thunderbird. But if it keeps as slow in final release, I'll have to change as I loose too much working time with it right now on 11.4. Expected Results: Kmail should print folder list of mail in less than a second (even for 4000 mails) and should print a mail in less than 0.5s after click. The same speed as kmail version included in opensuse 8.0 would be far enougth... I had some kind of solution on 11.4 for kmail problem : if I switch swappiness to zero, kmail and the whole system get faster, until probably the RAM gets overcharged and then all the system can't reply any more, with HDD full working. When that freeze happen, I ctl-F1 to get a console, and switch swappiness back to 50 and system fills better again... But I admit this is not a good solution for 12.2... -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.