kernel cpu entries

Peter Jeremy PeterJeremy at optushome.com.au
Thu Dec 15 10:22:55 PST 2005


On Thu, 2005-Dec-15 17:59:38 +0000, Pete French wrote:
>Got some curiuous results when I tested this today by the way.
>I have a twin processor PIII machine. Did a parallel compile on
>it. The actuall wall clock time is faster when I add the 586
>back in. *but* if you look at the user and system times, the
>user time has dropped slightly, but the system tme has gone up
>a lot. So its doing more work, but with a slghtly greater amount
>of parallelism allow it to finish faster in real time.
>
>Can anyone explain that ????

I can't see anything in the kernel source code to explain it.  Since
you don't mention actual times, is the difference statistically
significant?  (see src/tools/tools/ministat)

-- 
Peter Jeremy


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