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PCIe TPH Coming With Linux 6.13 To Further Enhance 5th Gen AMD EPYC Performance
Going back to earlier in the year AMD Linux engineers have been prepping the kernel for PCI Express TLP Processing Hints (TPH) support that allows for hints that can be injected to improve latency and lowering traffic congestion when there are several possible cache locations on the server with the TPH noting the optimal location of a Transaction Layer Packet (TLP)
Going back to earlier in the year AMD Linux engineers have been prepping the kernel for PCI Express TLP Processing Hints(TPH) support that allows for hints that can be injected to improve latency and lowering traffic congestion when there are several possible cache locations on the server with the TPH noting the optimal location of a Transaction Layer Packet (TLP). For those interested in PCIe TLP Processing Hints functionality for the Linux kernel can see this documentation commit that goes over all the technical details of the support. The EPYC 9005 Linux support overall is in great shape besides a few extra new features like PCIe TPH taking longer time to bake and make it upstream.
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