On Thu, Oct 09, 2014 at 05:39:33PM +0200, Rohan Garg wrote: > > So while I still don't agree that this is free of risk of regression (e.g., > > a system with both kubuntu and ubuntu desktops installed could see a direct > > regression under the ubuntu session as a result of this change), I also > > Could you elaborate a bit on how this would affect the unity session? Sure > performance might take a hit in certain cases, and we're very well > aware of that,
As I said, the switch to deadline was seen to address existing problems with applications on the unity desktop (when running on an HDD) becoming non-responsive under heavy I/O. Switching back to cfq is likely to reintroduce this problem. > but the pro's of changing the scheduler to cfq in order to get better > performance in a KDE session > outweigh this performance hit ( if there is one ). How do they outweigh it? I think you can only say they outweigh it if you're running the Kubuntu desktop. If you're running the Ubuntu desktop, but have the Kubuntu desktop installed, you will have a different assessment. I thought that Edubuntu was still including both Ubuntu and Kubuntu on their DVD, which would be a clear example of why this would be the case. It doesn't look like Kubuntu is on that image anymore, so maybe this is a negligible use case. -- Steve Langasek Give me a lever long enough and a Free OS Debian Developer to set it on, and I can move the world. Ubuntu Developer http://www.debian.org/ [email protected] [email protected]
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