It's fine to use PACKET_MMAP to improve the performance of the capture and transmission process in Linux.
elixir.bootlin.com
#fast packet processing
1 tool curated in this category — including PACKET_MMAP/TPACKET/AF_PACKET
Find on mySelectas all sites and tools related to fast packet processing. This selection of 1 resources is reviewed and maintained by the community. The most popular include PACKET_MMAP/TPACKET/AF_PACKET. Each tool comes with a review, tags, comparisons and alternatives to help you make the best choice.