How does DPDK prefetch the data in mbuf?

[i_amzain]

The valid date of the packet is placed in the red part of the mbuf in the figure. When the CPU wants to read the data in the packets, it will access the red part of the mbuf in the figure. So, I want to know how DPDK prefetches the mbuf it will prefetch the whole mbuf to cache or only prefetch the data part(the red part in the figure).

In addition, it would be better if you could introduce the code of DPDK's prefetching mechanism (prefetch mbuf or RX descriptors) in detail.

[Zigfreid_Intel]

Hello i_amzain,

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Best regards,

Zigfreid I.

Intel® Customer Support