Re: REGRESSION: the new i386 timer code fails to sync CPUs

From: Matthias Urlichs
Date: Sun Jul 23 2006 - 08:58:24 EST


Andrew Morton:
> Also the sched-domain migration costs are grossly different between the two
> kernels. Maybe we changed the migration-cost-estimation code; I forget.
The old values look suspicious. 4000 and 8000 ??

Maybe there was some excess delay or wait time in the estimator.

The only code in the kernel I'd accept to take exactly 4000 of *anything*
without further investigation is a call to "mdelay(4)". ;-)

Matthias Urlichs | {M:U} IT Design @ | smurf@xxxxxxxxxxxxxx
Disclaimer: The quote was selected randomly. Really. |
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Silence is the element in which great things fashion themselves.
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