1#!/bin/bash 2# SPDX-License-Identifier: GPL-2.0 3# 4# Run a series of udpgro benchmarks 5 6readonly PEER_NS="ns-peer-$(mktemp -u XXXXXX)" 7 8cleanup() { 9 local -r jobs="$(jobs -p)" 10 local -r ns="$(ip netns list|grep $PEER_NS)" 11 12 [ -n "${jobs}" ] && kill -INT ${jobs} 2>/dev/null 13 [ -n "$ns" ] && ip netns del $ns 2>/dev/null 14} 15trap cleanup EXIT 16 17run_one() { 18 # use 'rx' as separator between sender args and receiver args 19 local -r all="$@" 20 local -r tx_args=${all%rx*} 21 local rx_args=${all#*rx} 22 23 [[ "${tx_args}" == *"-4"* ]] && rx_args="${rx_args} -4" 24 25 ip netns add "${PEER_NS}" 26 ip -netns "${PEER_NS}" link set lo up 27 ip link add type veth 28 ip link set dev veth0 up 29 ip addr add dev veth0 192.168.1.2/24 30 ip addr add dev veth0 2001:db8::2/64 nodad 31 32 ip link set dev veth1 netns "${PEER_NS}" 33 ip -netns "${PEER_NS}" addr add dev veth1 192.168.1.1/24 34 ip -netns "${PEER_NS}" addr add dev veth1 2001:db8::1/64 nodad 35 ip -netns "${PEER_NS}" link set dev veth1 up 36 37 ip -n "${PEER_NS}" link set veth1 xdp object ../bpf/xdp_dummy.o section xdp 38 ip netns exec "${PEER_NS}" ./udpgso_bench_rx ${rx_args} -r & 39 ip netns exec "${PEER_NS}" ./udpgso_bench_rx -t ${rx_args} -r & 40 41 # Hack: let bg programs complete the startup 42 sleep 0.1 43 ./udpgso_bench_tx ${tx_args} 44} 45 46run_in_netns() { 47 local -r args=$@ 48 49 ./in_netns.sh $0 __subprocess ${args} 50} 51 52run_udp() { 53 local -r args=$@ 54 55 echo "udp gso - over veth touching data" 56 run_in_netns ${args} -S 0 rx 57 58 echo "udp gso and gro - over veth touching data" 59 run_in_netns ${args} -S 0 rx -G 60} 61 62run_tcp() { 63 local -r args=$@ 64 65 echo "tcp - over veth touching data" 66 run_in_netns ${args} -t rx 67} 68 69run_all() { 70 local -r core_args="-l 4" 71 local -r ipv4_args="${core_args} -4 -D 192.168.1.1" 72 local -r ipv6_args="${core_args} -6 -D 2001:db8::1" 73 74 echo "ipv4" 75 run_tcp "${ipv4_args}" 76 run_udp "${ipv4_args}" 77 78 echo "ipv6" 79 run_tcp "${ipv4_args}" 80 run_udp "${ipv6_args}" 81} 82 83if [ ! -f ../bpf/xdp_dummy.o ]; then 84 echo "Missing xdp_dummy helper. Build bpf selftest first" 85 exit -1 86fi 87 88if [[ $# -eq 0 ]]; then 89 run_all 90elif [[ $1 == "__subprocess" ]]; then 91 shift 92 run_one $@ 93else 94 run_in_netns $@ 95fi 96