> PCIe P2P transfers go through the CPU PCIe P2P transfers can go direct through... | Hacker News

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		zamadatix on Aug 15, 2024 \| parent \| context \| favorite \| on: Kioxia Demonstrates Raid Offload Scheme for NVMe D... > PCIe P2P transfers go through the CPU PCIe P2P transfers can go direct through a downstream PCIe switch such as found on chipsets without having to bump back up through the CPU.

namibj on Aug 15, 2024 [–]

And even with e.g. AMD Matisse, aka Desktop Ryzen Zen3 on AM4, it turns around in the PCIe root complex instead of consuming infinity fabric bandwidth.

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