Messages in this thread |  | | | Subject | Re: scheduler vs hardware? (was Re: another i7 (linux) bug?) | | From | Mike Galbraith <> | | Date | Fri, 22 Jan 2010 08:19:18 +0100 |
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> if I run a cpu intensive process with the lowest priority (19 > from man nice) I obtain much better performance that with the > highest priority available (-20 from man nice). > > For example the same file is processed by lame in 8.7 seconds > at the lowest priority, and in 12 seconds at the highest > priority. Before posting a bug I wold like to understand if > this is a problem related to the i7 mobile (my processor is a > i7 Q720). > > As far as I tested on the same laptop series (dell studio 15), > with the same kernel this problem does not exists.
So you only see this on the i7. That's odd. Can you try 33-rc5?
Posting a reliable reproducer would be nice. It'd also be nice to see what all is running when you see this, and where.
-Mike
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