Re: [PATCH v3 1/7] ACPI/PPTT: Add Processor Properties Topology Table parsing

2017-10-13 Thread tn
Hi Jeremy, On 12.10.2017 21:48, Jeremy Linton wrote: ACPI 6.2 adds a new table, which describes how processing units are related to each other in tree like fashion. Caches are also sprinkled throughout the tree and describe the properties of the caches in relation to other caches and processing

Re: [PATCH v3 1/7] ACPI/PPTT: Add Processor Properties Topology Table parsing

2017-10-13 Thread tn
Hi Jeremy, On 12.10.2017 21:48, Jeremy Linton wrote: ACPI 6.2 adds a new table, which describes how processing units are related to each other in tree like fashion. Caches are also sprinkled throughout the tree and describe the properties of the caches in relation to other caches and processing

Re: [PATCH v5 3/6] iommu/iova: Extend rbtree node caching

2017-09-22 Thread tn
On 22.09.2017 18:50, tn wrote: On 22.09.2017 18:21, Tomasz Nowicki wrote: Hi Robin, On 21.09.2017 17:52, Robin Murphy wrote: The cached node mechanism provides a significant performance benefit for allocations using a 32-bit DMA mask, but in the case of non-PCI devices or where the 32-bit

Re: [PATCH v5 3/6] iommu/iova: Extend rbtree node caching

2017-09-22 Thread tn
On 22.09.2017 18:50, tn wrote: On 22.09.2017 18:21, Tomasz Nowicki wrote: Hi Robin, On 21.09.2017 17:52, Robin Murphy wrote: The cached node mechanism provides a significant performance benefit for allocations using a 32-bit DMA mask, but in the case of non-PCI devices or where the 32-bit

Re: [PATCH v5 3/6] iommu/iova: Extend rbtree node caching

2017-09-22 Thread tn
On 22.09.2017 18:21, Tomasz Nowicki wrote: Hi Robin, On 21.09.2017 17:52, Robin Murphy wrote: The cached node mechanism provides a significant performance benefit for allocations using a 32-bit DMA mask, but in the case of non-PCI devices or where the 32-bit space is full, the loss of this

Re: [PATCH v5 3/6] iommu/iova: Extend rbtree node caching

2017-09-22 Thread tn
On 22.09.2017 18:21, Tomasz Nowicki wrote: Hi Robin, On 21.09.2017 17:52, Robin Murphy wrote: The cached node mechanism provides a significant performance benefit for allocations using a 32-bit DMA mask, but in the case of non-PCI devices or where the 32-bit space is full, the loss of this