Re: volanoMark regression with kernel 2.6.26-rc1

Srivatsa Vaddagiri
2008-05-15T08:13:01Z

On Wed, May 14, 2008 at 05:12:47PM +0200, Peter Zijlstra wrote:
> A few other things I found that make a significant difference:

One more observation: access to aggregate()->rq_weight etc arent
correctly synchronized i.e while a cpu is doing a aggregate_walk_tree()
in a domain, and thus possibly modifying rq_weight, load etc, other cpus could
be concurrently accessing the same data. As a result, its possible to
see inconsistent rq_weight, load, task_weight combination?

--
Regards,
vatsa