[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] Re: [Xen-devel] [RFC PATCH v2] Implement Batched (group) ticket lock
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? _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxx http://lists.xen.org/xen-devel
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