Messages in this thread |  | | | Date | Tue, 8 Sep 2009 08:03:11 -0400 | | From | Theodore Tso <> | | Subject | Re: BFS vs. mainline scheduler benchmarks and measurements |
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On Tue, Sep 08, 2009 at 01:13:34PM +0300, Nikos Chantziaras wrote: >> despite the untranslated content, it is clear that you have scheduler >> delays (either due to scheduler bugs or cpu contention) of upto 68 >> msecs... Second in line is your binary AMD graphics driver that is >> chewing up 14% of your total latency... > > I've now used a correctly installed and up-to-date version of latencytop > and repeated the test. Also, I got rid of AMD's binary blob and used > kernel DRM drivers for my graphics card to throw fglrx out of the > equation (which btw didn't help; the exact same problems occur). > > Here the result: > > http://foss.math.aegean.gr/~realnc/pics/latop2.png
This was with an unmodified 2.6.31-rcX kernel? Does Latencytop do anything useful on a BFS-patched kernel?
- Ted
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