Re: [Xen-devel] [RFC PATCH v2] Implement Batched (group) ticket lock

[Peter Zijlstra <peterz@xxxxxxxxxxxxx>]

On Sat, Jun 28, 2014 at 02:47:04PM +0530, Raghavendra K T wrote:
> In virtualized environment there are mainly three problems
> related to spinlocks that affects performance.
> 1. LHP (lock holder preemption)
> 2. Lock Waiter Preemption (LWP)
> 3. Starvation/fairness
> 
> Though Ticketlocks solve fairness problem it worsens LWP, LHP problems. Though
> pv-ticketlocks tried to address these problems we can further improve at the
>  cost of relaxed fairness. The following patch tries to achieve that by 
> grouping
> (batched) ticketlocks.

And here I stop reading and ignore this patch, right?

Why should I look at this?

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