From: leimy2k@gmail.com (David Leimbach)
Subject: [9fans] cores a go go
Date: Thu, 31 Mar 2011 07:12:54 -0700 [thread overview]
Message-ID: <3FCFCCDD-D561-4212-9CD5-27D3606E5654@gmail.com> (raw)
In-Reply-To: <f8363beadbbae15ba4da1adac805b16e@brasstown.quanstro.net>
Nice!
Sent from my iPhone
On Mar 30, 2011, at 9:39 PM, erik quanstrom <quanstro at quanstro.net> wrote:
> i rerolled the atom cd today with some noticable changes
> for mp systems.
>
> 1. apic handling has changed. the mp code can now handle
> apic ids > 7. this can affect machines with fewer than 8 cores,
> especially intel 2xxx-series and xeon 56xx-series processors.
>
> 2. the apic code has a hack to find intel ht processors, even
> when there is no mp table entry. (as per usual.) you might
> see twice as many cores.
>
> 3. msi interrupts are now the default. see apic(3).
> http://www.quanstro.net/magic/man2html/3/apic
>
> this has been tested on a variety of phenom ii, opteron c32, intel 5[56]xx.
> intel core i7, intel atom, and pentium iv systems from 2-24 cores.
> but i'd be interested in hearing of any success/failure.
>
> - erik
>
prev parent reply other threads:[~2011-03-31 14:12 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-03-31 4:39 erik quanstrom
2011-03-31 14:12 ` David Leimbach [this message]
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