On Fri, Dec 21, 2012 at 06:51:15PM -0500, Rik van Riel wrote:
> Subject: x86,smp: proportional backoff for ticket spinlocks
>
> Simple fixed value proportional backoff for ticket spinlocks.
> By pounding on the cacheline with the spin lock less often,
> bus traffic is reduced. In cases of a data s
On Fri, Dec 21, 2012 at 3:51 PM, Rik van Riel wrote:
> Subject: x86,smp: proportional backoff for ticket spinlocks
>
> Simple fixed value proportional backoff for ticket spinlocks.
> By pounding on the cacheline with the spin lock less often,
> bus traffic is reduced. In cases of a data structure
On 12/21/2012 10:14 PM, Steven Rostedt wrote:
OK, I replied here before reading patch 3 (still reviewing it). Why have
this patch at all? Just to test if you broke something between this and
patch 3? Or perhaps patch 3 may not get accepted? In that case, you
would still need a comment.
Either e
On Fri, Dec 21, 2012 at 10:07:56PM -0500, Steven Rostedt wrote:
> > diff --git a/arch/x86/kernel/smp.c b/arch/x86/kernel/smp.c
> > index 20da354..4e44840 100644
> > --- a/arch/x86/kernel/smp.c
> > +++ b/arch/x86/kernel/smp.c
> > @@ -118,9 +118,11 @@ static bool smp_no_nmi_ipi = false;
> > void tic
On Fri, Dec 21, 2012 at 06:51:15PM -0500, Rik van Riel wrote:
> Subject: x86,smp: proportional backoff for ticket spinlocks
>
> Simple fixed value proportional backoff for ticket spinlocks.
> By pounding on the cacheline with the spin lock less often,
> bus traffic is reduced. In cases of a data s
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