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102 lines
3.0 KiB
102 lines
3.0 KiB
#!/bin/bash |
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# SPDX-License-Identifier: GPL-2.0 |
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# |
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# Script will generate one flow per thread (-t N) |
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# - Same destination IP |
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# - Fake source IPs for each flow (fixed based on thread number) |
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# |
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# Useful for scale testing on receiver, to see whether silo'ing flows |
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# works and scales. For optimal scalability (on receiver) each |
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# separate-flow should not access shared variables/data. This script |
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# helps magnify any of these scaling issues by overloading the receiver. |
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# |
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basedir=`dirname $0` |
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source ${basedir}/functions.sh |
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root_check_run_with_sudo "$@" |
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# Parameter parsing via include |
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source ${basedir}/parameters.sh |
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# Set some default params, if they didn't get set |
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if [ -z "$DEST_IP" ]; then |
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[ -z "$IP6" ] && DEST_IP="198.18.0.42" || DEST_IP="FD00::1" |
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fi |
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[ -z "$DST_MAC" ] && DST_MAC="90:e2:ba:ff:ff:ff" |
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[ -z "$CLONE_SKB" ] && CLONE_SKB="0" |
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[ -z "$BURST" ] && BURST=32 |
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[ -z "$COUNT" ] && COUNT="0" # Zero means indefinitely |
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if [ -n "$DEST_IP" ]; then |
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validate_addr${IP6} $DEST_IP |
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read -r DST_MIN DST_MAX <<< $(parse_addr${IP6} $DEST_IP) |
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fi |
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if [ -n "$DST_PORT" ]; then |
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read -r UDP_DST_MIN UDP_DST_MAX <<< $(parse_ports $DST_PORT) |
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validate_ports $UDP_DST_MIN $UDP_DST_MAX |
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fi |
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# General cleanup everything since last run |
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[ -z "$APPEND" ] && pg_ctrl "reset" |
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# Threads are specified with parameter -t value in $THREADS |
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for ((thread = $F_THREAD; thread <= $L_THREAD; thread++)); do |
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dev=${DEV}@${thread} |
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# Add remove all other devices and add_device $dev to thread |
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[ -z "$APPEND" ] && pg_thread $thread "rem_device_all" |
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pg_thread $thread "add_device" $dev |
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# Base config |
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pg_set $dev "flag QUEUE_MAP_CPU" |
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pg_set $dev "count $COUNT" |
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pg_set $dev "clone_skb $CLONE_SKB" |
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pg_set $dev "pkt_size $PKT_SIZE" |
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pg_set $dev "delay $DELAY" |
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pg_set $dev "flag NO_TIMESTAMP" |
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# Single destination |
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pg_set $dev "dst_mac $DST_MAC" |
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pg_set $dev "dst${IP6}_min $DST_MIN" |
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pg_set $dev "dst${IP6}_max $DST_MAX" |
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if [ -n "$DST_PORT" ]; then |
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# Single destination port or random port range |
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pg_set $dev "flag UDPDST_RND" |
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pg_set $dev "udp_dst_min $UDP_DST_MIN" |
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pg_set $dev "udp_dst_max $UDP_DST_MAX" |
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fi |
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[ ! -z "$UDP_CSUM" ] && pg_set $dev "flag UDPCSUM" |
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# Setup source IP-addresses based on thread number |
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pg_set $dev "src_min 198.18.$((thread+1)).1" |
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pg_set $dev "src_max 198.18.$((thread+1)).1" |
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# Setup burst, for easy testing -b 0 disable bursting |
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# (internally in pktgen default and minimum burst=1) |
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if [[ ${BURST} -ne 0 ]]; then |
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pg_set $dev "burst $BURST" |
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else |
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info "$dev: Not using burst" |
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fi |
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done |
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# Run if user hits control-c |
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function print_result() { |
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# Print results |
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for ((thread = $F_THREAD; thread <= $L_THREAD; thread++)); do |
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dev=${DEV}@${thread} |
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echo "Device: $dev" |
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cat /proc/net/pktgen/$dev | grep -A2 "Result:" |
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done |
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} |
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# trap keyboard interrupt (Ctrl-C) |
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trap true SIGINT |
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if [ -z "$APPEND" ]; then |
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echo "Running... ctrl^C to stop" >&2 |
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pg_ctrl "start" |
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print_result |
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else |
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echo "Append mode: config done. Do more or use 'pg_ctrl start' to run" |
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fi
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