Weird context-switching performance [RESOLVED]

[Milo Hyson]

Situation resolved. Turns out there was one small line in a kernel
config file that we overlooked. Seems the apm device was causing a
massive performance penalty. We don't really need it so we removed it.
All performance metrics are now exactly where they should be.

-- 
Milo Hyson
Chief "Mad" Scientist
CyberLife Labs, LLC

On Sat, 2004-01-31 at 18:00, Milo Hyson wrote:
> We don't have any other systems that are as similar as the two in the
> test, however we did plot context-switching performance against CPU and
> memory performance on several systems to see if anything jumped out. We
> found that beastie (the 2200+) is doing only about 26% of the
> task-switches/dhrystone that the other systems were, which were all
> pretty much about equal with each other. This is consistent with the
> observation that appserver (the 2100+) is four-times as fast. I think we
> can probably conclude that beastie is running slower than it should.
> 
> So the question still remains. What could affect context-switching to
> this degree yet not show up in other benchmarks?