Re: smp: Start up non-boot CPUs asynchronously

From: Arjan van de Ven
Date: Tue Jan 31 2012 - 11:23:35 EST


On Tue, 31 Jan 2012 17:12:07 +0100
Ingo Molnar <mingo@xxxxxxx> wrote:
> > it's not really a performance problem as it is an obvious "we
> > have a ton of back-to-back writers on a read-write lock that
> > we have quite a few readers for". Unless the writers back off
> > a little, the readers are going to get starved.
>
> I didn't think I'd ever quote Bush, but my reaction to that is:
> 'Bring it on!' ;-)

You ask and you shall receive....
In this patch are "No New Taxis"

I do have a request: do run with this patch, and make a bootchart.pl
of the result, and you'll see what I meant....