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samples/pktgen/pktgen_bench_xmit_mode_queue_xmit.sh
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#!/bin/bash
# SPDX-License-Identifier: GPL-2.0
#
# Benchmark script:
# - developed for benchmarking egress qdisc path, derived (more
# like cut'n'pasted) from ingress benchmark script.
#
# Script for injecting packets into egress qdisc path of the stack
# with pktgen "xmit_mode queue_xmit".
#
basedir=`dirname $0`
source ${basedir}/functions.sh
root_check_run_with_sudo "$@"
# Parameter parsing via include
source ${basedir}/parameters.sh
if [ -z "$DEST_IP" ]; then
[ -z "$IP6" ] && DEST_IP="198.18.0.42" || DEST_IP="FD00::1"
fi
[ -z "$DST_MAC" ] && DST_MAC="90:e2:ba:ff:ff:ff"
# Burst greater than 1 are invalid for queue_xmit mode
if [[ -n "$BURST" ]]; then
err 1 "Bursting not supported for this mode"
fi
[ -z "$COUNT" ] && COUNT="10000000" # Zero means indefinitely
# Base Config
DELAY="0" # Zero means max speed
# General cleanup everything since last run
pg_ctrl "reset"
# Threads are specified with parameter -t value in $THREADS
for ((thread = $F_THREAD; thread <= $L_THREAD; thread++)); do
# The device name is extended with @name, using thread number to
# make then unique, but any name will do.
dev=${DEV}@${thread}
# Add remove all other devices and add_device $dev to thread
pg_thread $thread "rem_device_all"
pg_thread $thread "add_device" $dev
# Base config of dev
pg_set $dev "flag QUEUE_MAP_CPU"
pg_set $dev "count $COUNT"
pg_set $dev "pkt_size $PKT_SIZE"
pg_set $dev "delay $DELAY"
pg_set $dev "flag NO_TIMESTAMP"
# Destination
pg_set $dev "dst_mac $DST_MAC"
pg_set $dev "dst$IP6 $DEST_IP"
# Inject packet into TX qdisc egress path of stack
pg_set $dev "xmit_mode queue_xmit"
done
# start_run
echo "Running... ctrl^C to stop" >&2
pg_ctrl "start"
echo "Done" >&2
# Print results
for ((thread = $F_THREAD; thread <= $L_THREAD; thread++)); do
dev=${DEV}@${thread}
echo "Device: $dev"
cat /proc/net/pktgen/$dev | grep -A2 "Result:"
done
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