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git.proxmox.com Git - mirror_ubuntu-jammy-kernel.git/blob - samples/pktgen/pktgen_sample05_flow_per_thread.sh
2 # SPDX-License-Identifier: GPL-2.0
4 # Script will generate one flow per thread (-t N)
5 # - Same destination IP
6 # - Fake source IPs for each flow (fixed based on thread number)
8 # Useful for scale testing on receiver, to see whether silo'ing flows
9 # works and scales. For optimal scalability (on receiver) each
10 # separate-flow should not access shared variables/data. This script
11 # helps magnify any of these scaling issues by overloading the receiver.
14 source ${basedir}/functions.sh
15 root_check_run_with_sudo
"$@"
17 # Parameter parsing via include
18 source ${basedir}/parameters.sh
19 # Set some default params, if they didn't get set
20 if [ -z "$DEST_IP" ]; then
21 [ -z "$IP6" ] && DEST_IP
="198.18.0.42" || DEST_IP
="FD00::1"
23 [ -z "$DST_MAC" ] && DST_MAC
="90:e2:ba:ff:ff:ff"
24 [ -z "$CLONE_SKB" ] && CLONE_SKB
="0"
25 [ -z "$BURST" ] && BURST
=32
26 [ -z "$COUNT" ] && COUNT
="0" # Zero means indefinitely
27 if [ -n "$DEST_IP" ]; then
28 validate_addr
${IP6} $DEST_IP
29 read -r DST_MIN DST_MAX
<<< $
(parse_addr
${IP6} $DEST_IP)
31 if [ -n "$DST_PORT" ]; then
32 read -r UDP_DST_MIN UDP_DST_MAX
<<< $
(parse_ports
$DST_PORT)
33 validate_ports
$UDP_DST_MIN $UDP_DST_MAX
36 # General cleanup everything since last run
37 [ -z "$APPEND" ] && pg_ctrl
"reset"
39 # Threads are specified with parameter -t value in $THREADS
40 for ((thread
= $F_THREAD; thread
<= $L_THREAD; thread
++)); do
43 # Add remove all other devices and add_device $dev to thread
44 [ -z "$APPEND" ] && pg_thread
$thread "rem_device_all"
45 pg_thread
$thread "add_device" $dev
48 pg_set
$dev "flag QUEUE_MAP_CPU"
49 pg_set
$dev "count $COUNT"
50 pg_set
$dev "clone_skb $CLONE_SKB"
51 pg_set
$dev "pkt_size $PKT_SIZE"
52 pg_set
$dev "delay $DELAY"
53 pg_set
$dev "flag NO_TIMESTAMP"
56 pg_set
$dev "dst_mac $DST_MAC"
57 pg_set
$dev "dst${IP6}_min $DST_MIN"
58 pg_set
$dev "dst${IP6}_max $DST_MAX"
60 if [ -n "$DST_PORT" ]; then
61 # Single destination port or random port range
62 pg_set
$dev "flag UDPDST_RND"
63 pg_set
$dev "udp_dst_min $UDP_DST_MIN"
64 pg_set
$dev "udp_dst_max $UDP_DST_MAX"
67 [ ! -z "$UDP_CSUM" ] && pg_set
$dev "flag UDPCSUM"
69 # Setup source IP-addresses based on thread number
70 pg_set
$dev "src_min 198.18.$((thread+1)).1"
71 pg_set
$dev "src_max 198.18.$((thread+1)).1"
73 # Setup burst, for easy testing -b 0 disable bursting
74 # (internally in pktgen default and minimum burst=1)
75 if [[ ${BURST} -ne 0 ]]; then
76 pg_set
$dev "burst $BURST"
78 info
"$dev: Not using burst"
83 # Run if user hits control-c
84 function print_result
() {
86 for ((thread
= $F_THREAD; thread
<= $L_THREAD; thread
++)); do
89 cat /proc
/net
/pktgen
/$dev |
grep -A2 "Result:"
92 # trap keyboard interrupt (Ctrl-C)
95 if [ -z "$APPEND" ]; then
96 echo "Running... ctrl^C to stop" >&2
101 echo "Append mode: config done. Do more or use 'pg_ctrl start' to run"