kubuntu 12.04
Qt: 4.8.2
KDE Development Platform: 4.9.00
Dolphin: 2.1

After updating to KDE 4.9 (through the kubuntu backports) I've noticed that Dolphin is taking a very long time to bring up a menu one a right click. It can take 4 or more seconds for the menu to come up, doesn't seem to depend on file type or directory contents nor on previous access or lack of access. So far as I can tell during the wait it's consuming 100% of one core.

Any ideas?

can you test as a new user?
using ksysguard is it Dolphin using the core or a diff app/process?

google01103 wrote:can you test as a new user?

No issues. On logging back in as myself I found that it worked for 10-15 seconds until all the setup was complete.

using ksysguard is it Dolphin using the core or a diff app/process?

It appears to be virtuoso-t that is consuming the CPU.

I tried to make sure that it wasn't in the dolphin settings by renaming the ~/.kde/share/apps/dolphin directory, no luck. I don't have the Nepomuk file indexing running if that matters.

Virtuoso is part of Nepomuk, which Dolphin uses if it is available. This would definitely explain the issue.
I suggest removing ~/.kde4/share/apps/nepomuk outside KDE - assuming you do not use the tags, ratings or other data stored in Nepomuk.

If you do not have a ~/.kde4 directory, try ~/.kde instead.