Re: looking for a function

[Chris Snook]

Xu Yang wrote:
> 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

getcpu() should do what you want.

-- Chris

> 2008/9/16, Bernd Petrovitsch <bernd@xxxxxxxxx>:
> > 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
> > --
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