Hello, I have the same problem. I'm not sure if it's related to this bug:
kdebase-runtime: /usr/bin/nepomukservicestub writes huge amount of data to .xsession-errors: http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=628006 Why I think it's not? Because I disabled nepomuk logging with kdebugdialog and removed .xsession-errors file. So the logging shouldn't be active now, but the memory and CPU usage of nepomukservices and nepomukserver is huge. There are also multiple instances of nepomukservices in top: PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND 2075 andrej 20 0 1403m 796m 3592 S 2 39.3 135:52.04 nepomukservices 1959 andrej 20 0 537m 441m 468 S 1 21.8 59:35.35 dbus-daemon 1734 root 20 0 136m 81m 2132 S 1 4.0 483:44.13 Xorg 7628 andrej 20 0 47548 28m 2748 S 0 1.4 18:09.33 virtuoso-t 2169 andrej 39 19 97036 17m 6644 S 2 0.9 166:41.62 nepomukservices 7656 andrej 39 19 94712 13m 5340 S 0 0.7 13:11.50 nepomukservices 7602 andrej 20 0 293m 9m 6504 S 0 0.5 12:55.60 plasma-desktop 7622 andrej 20 0 125m 7148 3760 S 0 0.3 6:59.22 nepomukservices 10784 andrej 20 0 3035m 7072 3436 R 75 0.3 243:28.49 nepomukservices 2167 andrej 20 0 42684 5840 3304 S 0 0.3 34:02.84 nepomukservices
