For a some days (don't remember any KDE related update) now Dolphin, Kdialog (and other programs like gwenview) are slow starting up. All of those programs hung at:

kdialog(8003)/kdecore (KSycoca) KSycocaPrivate::openDatabase: Trying to open ksycoca from "/var/tmp/kdecache-firewalker/ksycoca4"
dolphin(8015)/kdecore (KSycoca) KSycocaPrivate::openDatabase: Trying to open ksycoca from "/var/tmp/kdecache-firewalker/ksycoca4"
gwenview(8037)/kdecore (KSycoca) KSycocaPrivate::openDatabase: Trying to open ksycoca from "/var/tmp/kdecache-firewalker/ksycoca4"

The same goes when a program wants to open a file dialog (e.g. kolourpaint). After the start up delay everything is normal.

I tried removing ksycoca4 file, removing all KDE cache, without success. And some other thing found on similar issues I found here.

Any ideas?

Arch Linux.

kde4-config -v:
Qt: 4.8.5
KDE Development Platform: 4.10.5
kde4-config: 1.0

Does interacting with "kded4" over D-Bus return immediately? If kded4 is hung / slow at responding, it could very well explain this issue.
To test this out, please run this command. It should normally return instantly.

Code: Select all

qdbus org.kde.kded

Just turned on my pc today and it seems ok now... ?? After six days it decided to solve the problem it self. I am strangling to remember what could have fixed it. I did no new packet install/upgrade. And since posted here, I didn't took any action to solve the problem.

btw, qdbus org.kde.kded is instant.

Okay. If the issue recurs, please try the qdbus diagnostic method I mentioned.