Re: adding ULE in GENERIC options

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adding ULE in GENERIC options
\ Abdullah Ibn Hamad Al-Marri (24 May 2007)
. \ illoai (25 May 2007)

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Subject:	Re: adding ULE in GENERIC options
Group:	Freebsd-current
From:	illoai
Date:	25 May 2007

On 24/05/07, Abdullah Ibn Hamad Al-Marri <almarrie> wrote:
> Hello,
>
> Just wondering why ULE isn't in the GENERIC options for -CURRENT?
>
> Is it good for dual xeon cpu and MySQL now?
>

I tried it on a desktop machine for a while and noticed no
tangible differences.

from /usr/src/sys/conf/NOTES:

# SCHED_ULE is a new scheduler that has been designed for SMP and has some
# advantages for UP as well. It is intended to replace the 4BSD scheduler
# over time. NOTE: SCHED_ULE is currently considered experimental and is
# not recommended for production use at this time.

AFIK, you cannot have both SCHED_ULE and SCHED_4BSD
in the same kernel, which is likely why it is not yet in GENERIC.

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