Re: [PATCH 7/7] CPU controller V1 - (temporary) cpuset interface

Mike Galbraith
2006-08-22T15:57:01Z

On Tue, 2006-08-22 at 19:20 +0530, Srivatsa Vaddagiri wrote:
> On Tue, Aug 22, 2006 at 03:45:05PM +0000, Mike Galbraith wrote:
> > > With only cpu 1 in the cpuset, it worked.
> >
> > P.S. since it worked, (and there are other tasks that I assigned on it,
> > kthreads for example, I only assigned the one shell), I figured I'd try
> > adding the other cpu and see what happened. It let me hot add cpu 0,
> > but tasks continue to be run only on cpu 1.
>
> How did you add the other cpu? to the "all" cpuset? I don't think I am
> percolating the changes to "cpus" field of parent to child cpuset, which
> may explain why tasks continue to run on cpu0. Achieving this change
> atomically for all child cpusets again is something I don't know whether
> cpuset code can handle well.

I just did echo "0-1" > cpus.

-Mike