| Jesper Dangaard Brouer | d25692e | 2016-07-13 22:06:10 +0200 | [diff] [blame] | 1 | #!/bin/bash |
| 2 | # |
| 3 | # Script will generate one flow per thread (-t N) |
| 4 | # - Same destination IP |
| 5 | # - Fake source IPs for each flow (fixed based on thread number) |
| 6 | # |
| 7 | # Useful for scale testing on receiver, to see whether silo'ing flows |
| 8 | # works and scales. For optimal scalability (on receiver) each |
| 9 | # separate-flow should not access shared variables/data. This script |
| 10 | # helps magnify any of these scaling issues by overloading the receiver. |
| 11 | # |
| 12 | basedir=`dirname $0` |
| 13 | source ${basedir}/functions.sh |
| 14 | root_check_run_with_sudo "$@" |
| 15 | |
| 16 | # Parameter parsing via include |
| 17 | source ${basedir}/parameters.sh |
| 18 | # Set some default params, if they didn't get set |
| 19 | [ -z "$DEST_IP" ] && DEST_IP="198.18.0.42" |
| 20 | [ -z "$DST_MAC" ] && DST_MAC="90:e2:ba:ff:ff:ff" |
| 21 | [ -z "$CLONE_SKB" ] && CLONE_SKB="0" |
| 22 | [ -z "$BURST" ] && BURST=32 |
| 23 | |
| 24 | |
| 25 | # Base Config |
| 26 | DELAY="0" # Zero means max speed |
| 27 | COUNT="0" # Zero means indefinitely |
| 28 | |
| 29 | # General cleanup everything since last run |
| 30 | pg_ctrl "reset" |
| 31 | |
| 32 | # Threads are specified with parameter -t value in $THREADS |
| 33 | for ((thread = 0; thread < $THREADS; thread++)); do |
| 34 | dev=${DEV}@${thread} |
| 35 | |
| 36 | # Add remove all other devices and add_device $dev to thread |
| 37 | pg_thread $thread "rem_device_all" |
| 38 | pg_thread $thread "add_device" $dev |
| 39 | |
| 40 | # Base config |
| 41 | pg_set $dev "flag QUEUE_MAP_CPU" |
| 42 | pg_set $dev "count $COUNT" |
| 43 | pg_set $dev "clone_skb $CLONE_SKB" |
| 44 | pg_set $dev "pkt_size $PKT_SIZE" |
| 45 | pg_set $dev "delay $DELAY" |
| 46 | pg_set $dev "flag NO_TIMESTAMP" |
| 47 | |
| 48 | # Single destination |
| 49 | pg_set $dev "dst_mac $DST_MAC" |
| 50 | pg_set $dev "dst $DEST_IP" |
| 51 | |
| 52 | # Setup source IP-addresses based on thread number |
| 53 | pg_set $dev "src_min 198.18.$((thread+1)).1" |
| 54 | pg_set $dev "src_max 198.18.$((thread+1)).1" |
| 55 | |
| 56 | # Setup burst, for easy testing -b 0 disable bursting |
| 57 | # (internally in pktgen default and minimum burst=1) |
| 58 | if [[ ${BURST} -ne 0 ]]; then |
| 59 | pg_set $dev "burst $BURST" |
| 60 | else |
| 61 | info "$dev: Not using burst" |
| 62 | fi |
| 63 | |
| 64 | done |
| 65 | |
| 66 | # Run if user hits control-c |
| 67 | function print_result() { |
| 68 | # Print results |
| 69 | for ((thread = 0; thread < $THREADS; thread++)); do |
| 70 | dev=${DEV}@${thread} |
| 71 | echo "Device: $dev" |
| 72 | cat /proc/net/pktgen/$dev | grep -A2 "Result:" |
| 73 | done |
| 74 | } |
| 75 | # trap keyboard interrupt (Ctrl-C) |
| 76 | trap true SIGINT |
| 77 | |
| 78 | echo "Running... ctrl^C to stop" >&2 |
| 79 | pg_ctrl "start" |
| 80 | |
| 81 | print_result |