1#!/bin/bash 2# 3# Script example for many flows testing 4# 5# Number of simultaneous flows limited by variable $FLOWS 6# and number of packets per flow controlled by variable $FLOWLEN 7# 8basedir=`dirname $0` 9source ${basedir}/functions.sh 10root_check_run_with_sudo "$@" 11 12# Parameter parsing via include 13source ${basedir}/parameters.sh 14# Set some default params, if they didn't get set 15[ -z "$DEST_IP" ] && DEST_IP="198.18.0.42" 16[ -z "$DST_MAC" ] && DST_MAC="90:e2:ba:ff:ff:ff" 17[ -z "$CLONE_SKB" ] && CLONE_SKB="0" 18 19# NOTICE: Script specific settings 20# ======= 21# Limiting the number of concurrent flows ($FLOWS) 22# and also set how many packets each flow contains ($FLOWLEN) 23# 24[ -z "$FLOWS" ] && FLOWS="8000" 25[ -z "$FLOWLEN" ] && FLOWLEN="10" 26 27# Base Config 28DELAY="0" # Zero means max speed 29COUNT="0" # Zero means indefinitely 30 31if [[ -n "$BURST" ]]; then 32 err 1 "Bursting not supported for this mode" 33fi 34 35# General cleanup everything since last run 36pg_ctrl "reset" 37 38# Threads are specified with parameter -t value in $THREADS 39for ((thread = 0; thread < $THREADS; thread++)); do 40 dev=${DEV}@${thread} 41 42 # Add remove all other devices and add_device $dev to thread 43 pg_thread $thread "rem_device_all" 44 pg_thread $thread "add_device" $dev 45 46 # Base config 47 pg_set $dev "flag QUEUE_MAP_CPU" 48 pg_set $dev "count $COUNT" 49 pg_set $dev "clone_skb $CLONE_SKB" 50 pg_set $dev "pkt_size $PKT_SIZE" 51 pg_set $dev "delay $DELAY" 52 pg_set $dev "flag NO_TIMESTAMP" 53 54 # Single destination 55 pg_set $dev "dst_mac $DST_MAC" 56 pg_set $dev "dst $DEST_IP" 57 58 # Randomize source IP-addresses 59 pg_set $dev "flag IPSRC_RND" 60 pg_set $dev "src_min 198.18.0.0" 61 pg_set $dev "src_max 198.19.255.255" 62 63 # Limit number of flows (max 65535) 64 pg_set $dev "flows $FLOWS" 65 # 66 # How many packets a flow will send, before flow "entry" is 67 # re-generated/setup. 68 pg_set $dev "flowlen $FLOWLEN" 69 # 70 # Flag FLOW_SEQ will cause $FLOWLEN packets from the same flow 71 # being send back-to-back, before next flow is selected 72 # incrementally. This helps lookup caches, and is more realistic. 73 # 74 pg_set $dev "flag FLOW_SEQ" 75 76done 77 78# Run if user hits control-c 79function print_result() { 80 # Print results 81 for ((thread = 0; thread < $THREADS; thread++)); do 82 dev=${DEV}@${thread} 83 echo "Device: $dev" 84 cat /proc/net/pktgen/$dev | grep -A2 "Result:" 85 done 86} 87# trap keyboard interrupt (Ctrl-C) 88trap true SIGINT 89 90echo "Running... ctrl^C to stop" >&2 91pg_ctrl "start" 92 93print_result 94