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Re: ULE/SCHED_SMP diff for 7.0



On Tue, 17 Jul 2007, Claus Guttesen wrote:

> sched_ule:
>
> -j 3 buildkernel: 13:23
> -j 4 buildkernel: 12:38
> -j 5 buildkernel: 12:41
> -j 6 buildkernel: 12:47
>
> sched_4bsd:
> -j 3 buildkernel: 11:43
> -j 4 buildkernel: 12:02
>
> So sched_ule seems to handle more processes slightly better than 4bsd
> albeit it does it slower. ule's sweet spot is -j 4 and 4bsd is -j 3.
>

4bsd vs ULE

-j 3 buildkernel: 11:43 vs -j 3 buildkernel: 13:23

-j 4 buildkernel: 12:02 vs -j 4 buildkernel: 12:38


ULE is always slower?

In my case yes.

--
regards
Claus

When lenity and cruelty play for a kingdom,
the gentlest gamester is the soonest winner.

Shakespeare

Sorry to say, but last year's Xeons were very lackluster in terms of capability/performance, and there were rumors flying around that the Conroes (desktop chips) fared better than the 1st gen Woodcrest (?) chips :(..

That's changed in the later Xeons though =\..

-Garrett

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