samples/bpf/lwt_len_hist.sh

   1 #!/bin/bash
   2
   3 NS1=lwt_ns1
   4 VETH0=tst_lwt1a
   5 VETH1=tst_lwt1b
   6
   7 TRACE_ROOT=/sys/kernel/debug/tracing
   8
   9 function cleanup {
  10         ip route del 192.168.253.2/32 dev $VETH0 2> /dev/null
  11         ip link del $VETH0 2> /dev/null
  12         ip link del $VETH1 2> /dev/null
  13         ip netns exec $NS1 killall netserver
  14         ip netns delete $NS1 2> /dev/null
  15 }
  16
  17 cleanup
  18
  19 ip netns add $NS1
  20 ip link add $VETH0 type veth peer name $VETH1
  21 ip link set dev $VETH0 up
  22 ip addr add 192.168.253.1/24 dev $VETH0
  23 ip link set $VETH1 netns $NS1
  24 ip netns exec $NS1 ip link set dev $VETH1 up
  25 ip netns exec $NS1 ip addr add 192.168.253.2/24 dev $VETH1
  26 ip netns exec $NS1 netserver
  27
  28 echo 1 > ${TRACE_ROOT}/tracing_on
  29 cp /dev/null ${TRACE_ROOT}/trace
  30 ip route add 192.168.253.2/32 encap bpf out obj lwt_len_hist_kern.o section len_hist dev $VETH0
  31 netperf -H 192.168.253.2 -t TCP_STREAM
  32 cat ${TRACE_ROOT}/trace | grep -v '^#'
  33 ./lwt_len_hist
  34 cleanup
  35 echo 0 > ${TRACE_ROOT}/tracing_on
  36
  37 exit 0