Re: Context switch times

Davide Libenzi
2001-10-04T22:30:51Z

On Thu, 4 Oct 2001, Benjamin LaHaise wrote:

> On Thu, Oct 04, 2001 at 02:52:39PM -0700, David S. Miller wrote:
> > So the FPU hit is only before/after the runs, not during each and
> > every iteration.
>
> Right. Plus, the original mail mentioned that it was hitting all 8
> CPUs, which is a pretty good example of braindead scheduler behaviour.

There was a discussion about process spinning among idle CPUs a couple of
months ago.
Mike, did you code the patch that stick the task to an idle between the
send-IPI and the idle wakeup ?
At that time we simply left the issue unaddressed.

- Davide