excessive use of cpu and fan?

[scrooge]

I seem to be having a problem with cpu usage which causes the fan to run excessively most of the time. I use a toshiba laptop L750. I didn't have this issue before the update and I don't have it when I run Mint 17. As soon as I load Kubuntu 15.04 off it goes and gets worse as soon as I open a program or browser.

I saw a similar issue on another forum but couldn't understand the tech jargon.

Has anyone else experienced this issue? Better still, has any solved this problem?

Thanks.

[Teunis]

This type of behaviour is typically caused by a single application so you'll have to start finding out which one.

Open the System Monitor and look in the Process table what is sucking up CPU%.

[scrooge]

thanks Teunis you're always ready to help much appreciated, I had a look at System Monitor and there was a file 'baloo-file' using 25% of the cpu! I killed it and that had an immediate positive effect. However next time I logged in it was there again. I suppose I could keep killing it each time it starts, but do you know if I can permanently disable it? Thanks

[mannenrok]

Open ksysguard and look at cpu usage.

[mannenrok]

In configuration disable search.

[Teunis]

Baloo is known to at times be a sustems hog.
This mainly happens when it makes it first comprehensive database of the drive's content, once that's done it *should* behave.

If it takes too long for your patience then you can disable it in System Settings/ Desktop Search (or so).