Messages in this thread | | | Date | Sun, 03 May 2009 21:26:09 +0200 | From | Nico Schümann <> | Subject | CFS not suitable for desktop computers |
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Dear Linux developers,
I have been using Linux for some years now and for me, the best thing about 2.6 was that Linux ran desktop applications just smoothly. I was able to compile in the background, while all applications under X11 were just usable as if the machine was in idle mode. This was due to the priority of gcc being set to 30, for instance.
Then, somewhere around 2.6.19 or 2.6.21, I do not remember exactly, the CFS was introduced, which removed all those "latency-based" scheduling policies. Now that I use 2.6.29 (I did not write earlier because I though it was a regression issue) I have to say: Linux is not as perfectly usable as before. End users do not want to experiment with nice levels and stuff, they just want that the system stays responsible even if there is a cpu-consuming process in the _background_. For me, this had been the greatest benefit from using Linux .
Now what can we do, so that foreground applications are smoothly usable during hard cpu load? Is there any way to restore the old behaviour that cpu-consuming processes get a lower priority? It had always worked until this new scheduler was introduced.
Regards, Nico Schümann -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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