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
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
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
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
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
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 with
embedded spinlock, the lock holder has a better chance of
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 with
embedded spinlock, the lock holder has a better chance of
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
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
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
On Fri, Dec 21, 2012 at 3:51 PM, Rik van Riel r...@redhat.com 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
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