Messages in this thread | | | Date | Thu, 14 Dec 2023 09:59:57 -0800 (PST) | From | David Rientjes <> | Subject | Re: [PATCH v2 09/10] iommu: observability of the IOMMU allocations |
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On Thu, 30 Nov 2023, Pasha Tatashin wrote:
> Add NR_IOMMU_PAGES into node_stat_item that counts number of pages > that are allocated by the IOMMU subsystem. > > The allocations can be view per-node via: > /sys/devices/system/node/nodeN/vmstat. > > For example: > > $ grep iommu /sys/devices/system/node/node*/vmstat > /sys/devices/system/node/node0/vmstat:nr_iommu_pages 106025 > /sys/devices/system/node/node1/vmstat:nr_iommu_pages 3464 > > The value is in page-count, therefore, in the above example > the iommu allocations amount to ~428M. > > Signed-off-by: Pasha Tatashin <pasha.tatashin@soleen.com>
Acked-by: David Rientjes <rientjes@google.com>
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