Orange Pi5 kernel

^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  1) #!/bin/bash
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  2) # SPDX-License-Identifier: GPL-2.0
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  3) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  4) NS1=lwt_ns1
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  5) VETH0=tst_lwt1a
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  6) VETH1=tst_lwt1b
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  7) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  8) TRACE_ROOT=/sys/kernel/debug/tracing
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  9) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10) function cleanup {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11) 	# To reset saved histogram, remove pinned map
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12) 	rm /sys/fs/bpf/tc/globals/lwt_len_hist_map
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13) 	ip route del 192.168.253.2/32 dev $VETH0 2> /dev/null
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14) 	ip link del $VETH0 2> /dev/null
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15) 	ip link del $VETH1 2> /dev/null
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16) 	ip netns exec $NS1 killall netserver
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17) 	ip netns delete $NS1 2> /dev/null
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20) cleanup
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22) ip netns add $NS1
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23) ip link add $VETH0 type veth peer name $VETH1
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24) ip link set dev $VETH0 up
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25) ip addr add 192.168.253.1/24 dev $VETH0
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26) ip link set $VETH1 netns $NS1
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27) ip netns exec $NS1 ip link set dev $VETH1 up
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28) ip netns exec $NS1 ip addr add 192.168.253.2/24 dev $VETH1
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29) ip netns exec $NS1 netserver
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31) echo 1 > ${TRACE_ROOT}/tracing_on
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32) cp /dev/null ${TRACE_ROOT}/trace
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33) ip route add 192.168.253.2/32 encap bpf out obj lwt_len_hist_kern.o section len_hist dev $VETH0
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34) netperf -H 192.168.253.2 -t TCP_STREAM
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35) cat ${TRACE_ROOT}/trace | grep -v '^#'
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36) ./lwt_len_hist
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37) cleanup
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38) echo 0 > ${TRACE_ROOT}/tracing_on
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 39) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 40) exit 0