Gecko [ tsuru-no-tsurugi.tokyo ]

Linux tsuru-no-tsurugi 5.15.0-186-generic #196-Ubuntu SMP Sat Jun 20 16:09:34 UTC 2026 x86_64
Apache/2.4.52 (Ubuntu)
Server IP : 192.168.0.18 & Your IP : 216.73.216.68
Domains : Cant Read [ /etc/named.conf ]
User : www-data

Name	Size	Permission	Date
Makefile	15.86 KB	-rw-r--r--	2026-06-21 00:49
Makefile.target	2.52 KB	-rw-r--r--	2026-06-21 00:49
do_hbm_test.sh	12 KB	-rwxr-xr-x	2021-11-01 05:53
lwt_len_hist.sh	1.02 KB	-rwxr-xr-x	2021-11-01 05:53
run_cookie_uid_helper_example.sh	341 B	-rwxr-xr-x	2021-11-01 05:53
tc_l2_redirect.sh	4.91 KB	-rwxr-xr-x	2021-11-01 05:53
test_cgrp2_sock.sh	2.89 KB	-rwxr-xr-x	2021-11-01 05:53
test_cgrp2_sock2.sh	1.76 KB	-rwxr-xr-x	2021-11-01 05:53
test_cgrp2_tc.sh	4.15 KB	-rwxr-xr-x	2021-11-01 05:53
test_cls_bpf.sh	915 B	-rwxr-xr-x	2021-11-01 05:53
test_lwt_bpf.sh	8.96 KB	-rwxr-xr-x	2021-11-01 05:53
test_override_return.sh	276 B	-rwxr-xr-x	2021-11-01 05:53
xdp2skb_meta.sh	4.5 KB	-rwxr-xr-x	2021-11-01 05:53

Rename

#!/bin/bash
# SPDX-License-Identifier: GPL-2.0

NS1=lwt_ns1
VETH0=tst_lwt1a
VETH1=tst_lwt1b

TRACE_ROOT=/sys/kernel/debug/tracing

function cleanup {
	# To reset saved histogram, remove pinned map
	rm /sys/fs/bpf/tc/globals/lwt_len_hist_map
	ip route del 192.168.253.2/32 dev $VETH0 2> /dev/null
	ip link del $VETH0 2> /dev/null
	ip link del $VETH1 2> /dev/null
	ip netns exec $NS1 killall netserver
	ip netns delete $NS1 2> /dev/null
}

cleanup

ip netns add $NS1
ip link add $VETH0 type veth peer name $VETH1
ip link set dev $VETH0 up
ip addr add 192.168.253.1/24 dev $VETH0
ip link set $VETH1 netns $NS1
ip netns exec $NS1 ip link set dev $VETH1 up
ip netns exec $NS1 ip addr add 192.168.253.2/24 dev $VETH1
ip netns exec $NS1 netserver

echo 1 > ${TRACE_ROOT}/tracing_on
cp /dev/null ${TRACE_ROOT}/trace
ip route add 192.168.253.2/32 encap bpf out obj lwt_len_hist_kern.o section len_hist dev $VETH0
netperf -H 192.168.253.2 -t TCP_STREAM
cat ${TRACE_ROOT}/trace | grep -v '^#'
./lwt_len_hist
cleanup
echo 0 > ${TRACE_ROOT}/tracing_on

exit 0