From mboxrd@z Thu Jan  1 00:00:00 1970
From: leimy2k@gmail.com (David Leimbach)
Date: Thu, 31 Mar 2011 07:12:54 -0700
Subject: [9fans] cores a go go
In-Reply-To: <f8363beadbbae15ba4da1adac805b16e@brasstown.quanstro.net>
References: <f8363beadbbae15ba4da1adac805b16e@brasstown.quanstro.net>
Message-ID: <3FCFCCDD-D561-4212-9CD5-27D3606E5654@gmail.com>
Topicbox-Message-UUID: c5041e5c-ead6-11e9-9d60-3106f5b1d025

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
>