The process "nepomukservices" is using ~300MB of memory. My machine only has 1GB of memory and I'm not too sure if losing 1/3 of my memory to this process is worth it. My laptop which has 2GB of memory also has Nepomuk using a similar amount of memory. Is this normal or common behaviour?

I'm using KDE 4.2.

What is the size of .kde4/share/apps/nepomuk/repository/main folder?. If you have a large database Nepomuk's performance drops and some applications, like Dolphin, are also affected. I have a similar problem in the past with a 200 Mb database but now my db have ~ 3 Mb and Nepomuk is using ~ 2 Mb of memory.

If your database is very large there are methods to optimize it.

Code: Select all

~/.kde4/share/apps/nepomuk/repository/main$ du -h
146M    ./index
42M     ./data/sesame2
42M     ./data
188M    .


I'd be interested to hear how you optimized it. Does it sacrifice some functionality?

I have the same problem. My index size is about 120 Mb and nepomuk uses about 300 Mb of mem. How do I optimize?

Arch 64-bit, KDE 4.2.0

You may wish to optimise the folders the Strigi indexes in System Settings > Advanced > Desktop Search.

bcooksley wrote:You may wish to optimise the folders the Strigi indexes in System Settings > Advanced > Desktop Search.

So just removing folders from being indexed, is that what you mean?

Yes, remove the ones that are not needed ( or contain particularly large files containing text )

Well I trimmed my folder to just include my music, videos and images. Now my storage size is just 4.8 MiB indexing 856 files. Now it's only using about 60 MiB of memory.

Disable strigi and you gain ~6MBytes of memory, testing in my system with 0 scanning directories. You can check how memory is using in yours with KSysGuard and filtering with text "strigi".

Nepomuk don't need strigi to do great things with your files and, whithout a query system, the main advantage of strigi is increase your database size.

Yes, the Memory Usage of Nepomuk (most likely it is the nepomukstorage process) is an issue.

For one it is quite memory heavy anyway but I still think there i some bug in either sesame2 or soprano or JNI or whatever.

Hopefully support for a Soprano backend Sebastian Trüg is working on will fix this.

Yes, I will complain about this too:

Gentoo
Linux 2.6.29 x86_64
GCC 4.3.2
KDE 4.2.1

I have 4GB of memory and this used 2.3GB resident. Thats worse than firefox!

I had the problem with the absurd memory usage, so I just got rid of Nepomuk altogether. I never really used it either.

Nepomuk is disabled on my system, but nepomukserver is always there, taking more than 2 MB of memory and more than 10 MB of shared memory. Is that normal? Why nepomukserver starts every time if I instructed kde to not use it? The process is "sleeping", but it is sleeping on my ram...
I'm using kde 4.2.1

Nepomukserver was probably started automatically be either KRunner ( for one of its runners, which can be disabled ) or by Dolphin ( which uses Nepomuk information in its information panel )