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Message-ID: <ab40e9c0809160711p4182d9e7n9b3ce965b3ce9f1f@mail.gmail.com>
Date: Tue, 16 Sep 2008 16:11:10 +0200
From: "Xu Yang" <risingsunxy@googlemail.com>
To: "Bernd Petrovitsch" <bernd@firmix.at>
Subject: Re: looking for a function
Cc: linux-kernel@vger.kernel.org
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Hi Bernd,

thanks for you reply.

yes, I know the thread migrates all the time, this is exactly what I
would like to observe. I would like to learn about the thread
migration of some specific scheduling algorithm. so ....

any idea about the function?

Best regards,

Yang

2008/9/16, Bernd Petrovitsch <bernd@firmix.at>:
> Hi!
>
> On Tue, 2008-09-16 at 14:50 +0200, Xu Yang wrote:
> > Hi guys,
> >
> > I am looking for a function that can show me the current thread is
> > running on which cpu.
>
> > e.g I am using pthread to write a multithreaded program, in each
> > thread I would like to insert such kind of function so that I can know
> > on which cpu this thread is running on.
>
> That doesn't make much sense as the same thread can run on a different
> CPU after each scheduling decision. And - as it is in userspace -
> scheduling can happen before any assembler op.
>
>        Bernd
> --
> Firmix Software GmbH                   http://www.firmix.at/
> mobil: +43 664 4416156                 fax: +43 1 7890849-55
>          Embedded Linux Development and Services
>
>
>