Skip site navigation (1)Skip section navigation (2)
Date:      Wed, 12 Jul 2006 14:17:25 -0400
From:      John Baldwin <jhb@freebsd.org>
To:        Michael <spampass@gmail.com>
Cc:        freebsd-amd64@freebsd.org
Subject:   Re: Turion 64 X2 support in future versions of FreeBSD.
Message-ID:  <200607121417.25934.jhb@freebsd.org>
In-Reply-To: <93f8f44b0607111416p6b31f12m14bd1b3bda0b276@mail.gmail.com>
References:  <93f8f44b0607061447k27adb556u306063b09b3d9b0d@mail.gmail.com> <200607111618.11303.jhb@freebsd.org> <93f8f44b0607111416p6b31f12m14bd1b3bda0b276@mail.gmail.com>

next in thread | previous in thread | raw e-mail | index | archive | help
On Tuesday 11 July 2006 17:16, Michael wrote:
> On 12/07/06, John Baldwin <jhb@freebsd.org> wrote:
> >
> > No obvious breakages.  Hmm, does ACPI work fine if you disable apic 
via 'set
> > hint.apic.0.disabled=1' in the loader?  (When you disable ACPI on amd64 
you
> > also implicitly disable APIC.)
> 
> it works fine (no slowing), but i see no second CPU in top output,
> here dmesg command output (very strange though, since it include
> strings from previous sessions):

Yes, APIC is required for SMP, but I wanted you to do the test for comparison 
purposes.  Another test you could try is leaving ACPI and APIC enabled and 
just disabling SMP via 'kern.smp.disabled=1' at the loader to see if the 
slow-down only comes from having both cores enabled.

-- 
John Baldwin



Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?200607121417.25934.jhb>