On Mon, 31 Mar 2025 11:23:45 +0800 Jiayuan Chen wrote: > which is negligible for the net stack. > > Before memset > ./test_progs -a xdp_adjust_head_perf -v > run adjust head with size 6 cost 56 ns > run adjust head with size 20 cost 56 ns > run adjust head with size 40 cost 56 ns > run adjust head with size 200 cost 56 ns > > After memset > ./test_progs -a xdp_adjust_head_perf -v > run adjust head with size 6 cost 58 ns > run adjust head with size 20 cost 58 ns > run adjust head with size 40 cost 58 ns > run adjust head with size 200 cost 66 ns
FWIW I'm not sure if this is "negligible" for XDP like you say, but I defer to Jesper :)
