From: Athul Acharya <aacharya@gmail.com>
To: Bill Davidsen <davidsen@tmr.com>
Cc: Linux Kernel Mailing List <linux-kernel@vger.kernel.org>
Subject: Re: Determining if the current processor is Hyperthreaded
Date: Tue, 2 Aug 2005 20:14:06 -0400 [thread overview]
Message-ID: <5a67a16f050802171478233f2f@mail.gmail.com> (raw)
In-Reply-To: <42EFB3BB.1060900@tmr.com>
On 8/2/05, Bill Davidsen <davidsen@tmr.com> wrote:
> Athul Acharya wrote:
> > Hey folks,
> >
> > Is there a quick way to determine if the current processor is
> > Hyperthreaded, and if so, which logical processor represents the other
> > thread on the chip? Please cc replies to me as I am not subscribed to
> > the list :-)
>
> Look at /proc/cpuinfo and see if "siblings" is listed and more than one.
> There is no "other thread" there, it's like "which one is the other hand?"
Sorry, I should've been more specific -- I mean within the kernel.
That is, I want to know whether the current cpu I (kernel code) am
executing on is hyperthreaded, and if so, which logical cpu represents
the other thread on chip.
Athul
next prev parent reply other threads:[~2005-08-03 0:14 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-07-29 16:24 Determining if the current processor is Hyperthreaded Athul Acharya
2005-08-02 17:56 ` Bill Davidsen
2005-08-03 0:14 ` Athul Acharya [this message]
2005-08-05 13:45 ` Athul Acharya
2005-08-06 21:31 ` Athul Acharya
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