RE: Which Kernel to use, .EL or .ELsmp
From: Gavin McDonald (gavitron_at_gmail.com)
Date: 05/26/05
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To: "'General Red Hat Linux discussion list'" <redhat-list@redhat.com> Date: Thu, 26 May 2005 11:11:24 -0700
-----Original Message-----
From: redhat-list-bounces@redhat.com [mailto:redhat-list-bounces@redhat.com]
On Behalf Of linux@fritzenwallner.org
Sent: Thursday, May 26, 2005 8:34 AM
To: General Red Hat Linux discussion list
Subject: Re: Which Kernel to use, .EL or .ELsmp
Quoting Ben <bda20@cam.ac.uk>:
> On Thu, 26 May 2005 linux@fritzenwallner.org wrote:
>
> > Can I find the information, whether linux treads my CPU as 2 CPUs in
> > /proc/cpuinfo or is it somewhere else?
>
> "treats". The easiest thing to do is fire up the SMP kernel and either
> check dmesg for APIC and CPU0 _and_ CPU1 messages, or run 'top' and see
> whether it reports cpu0 and cpu1 there as well. If you're not sure if
your
> CPU has HyperThreading, check in the BIOS.
>
Just to add my 2c,
We run dual-Xeons w/ Hyperthreading on an IBM eServer, and with the smp
kernel we get (the appearance of?) 4 CPUs.
Actually, this makes me wonder... Am I truly getting 4 threads running
synchronously? Maybe I should watch 'top' output more closely, and see if
the individual loads are paired,
or evenly spread...
Any thoughts, all?
Regards,
-G
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- Previous message: Anu Matthew: "How to force a Kernel Panic? (on RHEL 4.0)"
- In reply to: linux_at_fritzenwallner.org: "Re: Which Kernel to use, .EL or .ELsmp"
- Next in thread: Lew Bloch: "Re: Which Kernel to use, .EL or .ELsmp"
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