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Date:      Thu, 24 May 2007 23:14:04 -0500
From:      "illoai@gmail.com" <illoai@gmail.com>
To:        "Abdullah Ibn Hamad Al-Marri" <almarrie@gmail.com>
Cc:        freebsd-current@freebsd.org
Subject:   Re: adding ULE in GENERIC options
Message-ID:  <d7195cff0705242114n25c59102t1267a72f19572e96@mail.gmail.com>
In-Reply-To: <499c70c0705241507x4b77b922t1b9d0d1b32d0fa58@mail.gmail.com>
References:  <499c70c0705241507x4b77b922t1b9d0d1b32d0fa58@mail.gmail.com>

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On 24/05/07, Abdullah Ibn Hamad Al-Marri <almarrie@gmail.com> 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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