samples/pktgen/pktgen_bench_xmit_mode_queue_xmit.sh

   1 #!/bin/bash
   2 #
   3 # Benchmark script:
   4 #  - developed for benchmarking egress qdisc path, derived (more
   5 #    like cut'n'pasted) from ingress benchmark script.
   6 #
   7 # Script for injecting packets into egress qdisc path of the stack
   8 # with pktgen "xmit_mode queue_xmit".
   9 #
  10 basedir=`dirname $0`
  11 source ${basedir}/functions.sh
  12 root_check_run_with_sudo "$@"
  13
  14 # Parameter parsing via include
  15 source ${basedir}/parameters.sh
  16 if [ -z "$DEST_IP" ]; then
  17     [ -z "$IP6" ] && DEST_IP="198.18.0.42" || DEST_IP="FD00::1"
  18 fi
  19 [ -z "$DST_MAC" ] && DST_MAC="90:e2:ba:ff:ff:ff"
  20
  21 # Burst greater than 1 are invalid for queue_xmit mode
  22 if [[ -n "$BURST" ]]; then
  23     err 1 "Bursting not supported for this mode"
  24 fi
  25 [ -z "$COUNT" ] && COUNT="10000000" # Zero means indefinitely
  26
  27 # Base Config
  28 DELAY="0"        # Zero means max speed
  29
  30 # General cleanup everything since last run
  31 pg_ctrl "reset"
  32
  33 # Threads are specified with parameter -t value in $THREADS
  34 for ((thread = $F_THREAD; thread <= $L_THREAD; thread++)); do
  35     # The device name is extended with @name, using thread number to
  36     # make then unique, but any name will do.
  37     dev=${DEV}@${thread}
  38
  39     # Add remove all other devices and add_device $dev to thread
  40     pg_thread $thread "rem_device_all"
  41     pg_thread $thread "add_device" $dev
  42
  43     # Base config of dev
  44     pg_set $dev "flag QUEUE_MAP_CPU"
  45     pg_set $dev "count $COUNT"
  46     pg_set $dev "pkt_size $PKT_SIZE"
  47     pg_set $dev "delay $DELAY"
  48     pg_set $dev "flag NO_TIMESTAMP"
  49
  50     # Destination
  51     pg_set $dev "dst_mac $DST_MAC"
  52     pg_set $dev "dst$IP6 $DEST_IP"
  53
  54     # Inject packet into TX qdisc egress path of stack
  55     pg_set $dev "xmit_mode queue_xmit"
  56 done
  57
  58 # start_run
  59 echo "Running... ctrl^C to stop" >&2
  60 pg_ctrl "start"
  61 echo "Done" >&2
  62
  63 # Print results
  64 for ((thread = $F_THREAD; thread <= $L_THREAD; thread++)); do
  65     dev=${DEV}@${thread}
  66     echo "Device: $dev"
  67     cat /proc/net/pktgen/$dev | grep -A2 "Result:"
  68 done