http://bugzilla.opensuse.org/show_bug.cgi?id=1182982 http://bugzilla.opensuse.org/show_bug.cgi?id=1182982#c6 Fabian Vogt <fabian@ritter-vogt.de> changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |richard@nod.at Flags| |needinfo?(richard@nod.at) --- Comment #6 from Fabian Vogt <fabian@ritter-vogt.de> --- (In reply to Fabian Vogt from comment #5)

(In reply to Richard Weinberger from comment #4)

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But the process consumes 100% CPU all the time. Also when noting is logged (which is most the time the case).

Additionally I run "perf top" on the imap resource process at the point where it consumed 100% CPU: 96.95% libQt5Core.so.5.12.7 [.] QMetaObjectPrivate::disconnectHelper

Now that's actually interesting. It shows that the process isn't busy processing mail data, but with handling disconnections. This reminds me very much of https://bugreports.qt.io/browse/QTBUG-72649.

Looking at the akonadi code, it's prone to run into the pretty much worst case of this: https://github.com/KDE/akonadi/blob/3bbbdfb368e36b3866a9b58e282120a65e1074a9... src/core/connection.cpp#L247

If this is the case, it also explains why so far we weren't able to reproduce this issue: It becomes worse the longer the process is running and the more requests it receives.

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1.39% libQt5Core.so.5.12.7 [.] QMetaObject::activate

Please try libKF5AkonadiCore5 from https://build.opensuse.org/package/show/home:Vogtinator:boo1182982/akonadi-s... once it's built. It contains a workaround for this specific case. -- You are receiving this mail because: You are on the CC list for the bug.