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Date:      Mon, 5 Sep 2005 00:19:46 -0500
From:      "Z.C.B." <vvelox@vvelox.net>
To:        jesse <marquezjesse@gmail.com>
Cc:        freebsd-questions@freebsd.org
Subject:   Re: Optimizing FreeBSD
Message-ID:  <20050905001946.65459fcb@vixen42.vulpes>
In-Reply-To: <431B80F0.8060909@gmail.com>
References:  <431B80F0.8060909@gmail.com>

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On Sun, 04 Sep 2005 18:19:12 -0500
jesse <marquezjesse@gmail.com> wrote:

> Hi all,
> 
> Is there any performance gain when using Standard-PC HAL over
> ACPI-PC HAL? I'm running FreeBSD 5.4-STABLE on a abit KR7A(KT266A)
> motherboard. I currently have APIC disabled in the bios, ACPI
> disabled at boot and I feel like my system is snappier. Just
> wondering if there is any truth to this.

I've not noticed any difference with ACPI on or off. I just leave it
on so I have access to the features it provides.
Make sure hw.acpi.cpu.cx_lowest is set to C1.

In the area of APIC I remember finding some devices on my system not
properly detecting with out it, on my Nforce2 board. No clue about
that chipset.

I've never any speed differences though.



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