Comment 123 for bug 578215

The same problem here.

Today, after a long time I tested KDEPIM 4.6.0 again with KDE 4.6.4 on an Opensuse 11.4 system. (Basic KDE 4.6.4 components from Opensuse's KDE factory repository and KDEPIM 4.6.0 from an KDE-"Unstable" repository of Opensuse.)

Kmail was connected to a cyrus imap server with tons of mails. All the imap folders were nevertheless built up and filled in Kmail/Akonadi surprisingly rapidly. However, when starting KDE itself again nepomuk and virtuoso-t ran amok.

I have an Intel i7 950 quadcore with hyperthreading (8 threads). The cpu consumption of vituoso-t and nepomuk appear to be distributed over all cpu threads. However, in sum and on average the load of virtuoso-t consumes at least one cpu thread completely. According to ksysguard the following processes determine the cpu load (8x100%) :

virtuoso-t : 96% - 126 % (i.e. on average more than one cpu thread of 8 is used completely)

nepomukservices : 8% - 12 % (kind of a leading nepomukservices process)

dbus-daemon : 2% - 8%

several other nepomukservices processes: each with 2% - 4%

akonadi-nepomuk: 2% - 4%

This pattern was active over 20 minutes with no end in sight. The same after a new start of the system. I gave up then and went back to KDEPIM 4.4.11 (with Kmail 1.13.7).

So my impression is that the problem is not fixed or resolved.

Regarding my comment #91:
After looking into some logs I now think I reported wrongly. My positive impression at that time probably came from an Opensuse system that mixed KDE 4.6 with KDEPIM 4.4. Sorry for any confusion comment #91 may have caused.

Off topic: KDEPIM 4.6.0 apparently does not offer any chance to connect to Open-Xchange calendars or OX address books. So OX users can't use it productively, anyway.