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DPDK default burst size is 32, however, kernel xsk sendto syscall can not handle all 32 at one time, and return with error. So make kernel XDP socket batch size larger to avoid unnecessary syscall fail and context switch which will help to increase performance. Signed-off-by: Li RongQing <lirongqing@baidu.com> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> Acked-by: Magnus Karlsson <magnus.karlsson@intel.com> Link: https://lore.kernel.org/bpf/1618378752-4191-1-git-send-email-lirongqing@baidu.com