Commit | Line | Data |
---|---|---|
d25692e4 JDB |
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 |