# SPDX-License-Identifier: AGPL-3.0-or-later # # PASST - Plug A Simple Socket Transport # for qemu/UNIX domain socket mode # # PASTA - Pack A Subtle Tap Abstraction # for network namespace/tap device mode # # test/perf/pasta_tcp - Check TCP performance in pasta mode # # Copyright (c) 2021 Red Hat GmbH # Author: Stefano Brivio htools head ip seq bc sleep iperf3 tcp_rr tcp_crr jq sed nstools /sbin/sysctl nproc ip seq sleep iperf3 tcp_rr tcp_crr jq sed test pasta: throughput and latency (local connections) ns /sbin/sysctl -w net.ipv4.tcp_rmem="131072 524288 134217728" ns /sbin/sysctl -w net.ipv4.tcp_wmem="131072 524288 134217728" ns /sbin/sysctl -w net.ipv4.tcp_timestamps=0 set THREADS 2 set STREAMS 2 set TIME 10 hout OMIT echo __TIME__ / 6 | bc -l set OPTS -Z -w 4M -l 1M -P __STREAMS__ -O__OMIT__ --pacing-timer 10000 hout FREQ_PROCFS (echo "scale=1"; sed -n 's/cpu MHz.*: \([0-9]*\)\..*$/(\1+10^2\/2)\/10^3/p' /proc/cpuinfo) | bc -l | head -n1 hout FREQ_CPUFREQ (echo "scale=1"; printf '( %i + 10^5 / 2 ) / 10^6\n' $(cat /sys/devices/system/cpu/cpu0/cpufreq/scaling_max_freq) ) | bc -l hout FREQ [ -n "__FREQ_CPUFREQ__" ] && echo __FREQ_CPUFREQ__ || echo __FREQ_PROCFS__ info Throughput in Gbps, latency in µs, __THREADS__ threads at __FREQ__ GHz, __STREAMS__ streams each report pasta lo_tcp __THREADS__ __FREQ__ th MTU 1500B 4000B 16384B 65535B tr TCP throughput over IPv6: ns to host ns ip link set dev lo mtu 1500 iperf3 BW ns host ::1 100${i}3 __THREADS__ __TIME__ __OPTS__ bw __BW__ 15.0 20.0 ns ip link set dev lo mtu 4000 iperf3c ns ::1 100${i}3 __THREADS__ __TIME__ __OPTS__ iperf3s BW host 100${i}3 __THREADS__ bw __BW__ 15.0 20.0 ns ip link set dev lo mtu 16384 iperf3 BW ns host ::1 100${i}3 __THREADS__ __TIME__ __OPTS__ bw __BW__ 15.0 20.0 ns ip link set dev lo mtu 65535 iperf3 BW ns host ::1 100${i}3 __THREADS__ __TIME__ __OPTS__ bw __BW__ 15.0 20.0 tl TCP RR latency over IPv6: ns to host lat - lat - lat - hostb tcp_rr --nolog -P 10003 -C 10013 -6 nsout LAT tcp_rr --nolog -P 10003 -C 10013 -6 -c -H ::1 | sed -n 's/^throughput=\(.*\)/\1/p' hostw lat __LAT__ 150 100 tl TCP CRR latency over IPv6: ns to host lat - lat - lat - hostb tcp_crr --nolog -P 10003 -C 10013 -6 nsout LAT tcp_crr --nolog -P 10003 -C 10013 -6 -c -H ::1 | sed -n 's/^throughput=\(.*\)/\1/p' hostw lat __LAT__ 500 350 tr TCP throughput over IPv4: ns to host ns ip link set dev lo mtu 1500 iperf3 BW ns host 127.0.0.1 100${i}3 __THREADS__ __TIME__ __OPTS__ bw __BW__ 15.0 20.0 ns ip link set dev lo mtu 4000 iperf3 BW ns host 127.0.0.1 100${i}3 __THREADS__ __TIME__ __OPTS__ bw __BW__ 15.0 20.0 ns ip link set dev lo mtu 16384 iperf3 BW ns host 127.0.0.1 100${i}3 __THREADS__ __TIME__ __OPTS__ bw __BW__ 15.0 20.0 ns ip link set dev lo mtu 65535 iperf3 BW ns host 127.0.0.1 100${i}3 __THREADS__ __TIME__ __OPTS__ bw __BW__ 15.0 20.0 tl TCP RR latency over IPv4: ns to host lat - lat - lat - hostb tcp_rr --nolog -P 10003 -C 10013 -4 nsout LAT tcp_rr --nolog -P 10003 -C 10013 -4 -c -H 127.0.0.1 | sed -n 's/^throughput=\(.*\)/\1/p' hostw lat __LAT__ 150 100 tl TCP CRR latency over IPv4: ns to host lat - lat - lat - hostb tcp_crr --nolog -P 10003 -C 10013 -4 nsout LAT tcp_crr --nolog -P 10003 -C 10013 -4 -c -H 127.0.0.1 | sed -n 's/^throughput=\(.*\)/\1/p' hostw lat __LAT__ 500 350 tr TCP throughput over IPv6: host to ns bw - bw - bw - iperf3 BW host ns ::1 100${i}2 __THREADS__ __TIME__ __OPTS__ bw __BW__ 15.0 20.0 tl TCP RR latency over IPv6: host to ns lat - lat - lat - nsb tcp_rr --nolog -P 10002 -C 10012 -6 hout LAT tcp_rr --nolog -P 10002 -C 10012 -6 -c -H ::1 | sed -n 's/^throughput=\(.*\)/\1/p' nsw lat __LAT__ 150 100 tl TCP CRR latency over IPv6: host to ns lat - lat - lat - nsb tcp_crr --nolog -P 10002 -C 10012 -6 hout LAT tcp_crr --nolog -P 10002 -C 10012 -6 -c -H ::1 | sed -n 's/^throughput=\(.*\)/\1/p' nsw lat __LAT__ 1000 700 tr TCP throughput over IPv4: host to ns bw - bw - bw - iperf3 BW host ns 127.0.0.1 100${i}2 __THREADS__ __TIME__ __OPTS__ bw __BW__ 15.0 20.0 tl TCP RR latency over IPv4: host to ns lat - lat - lat - nsb tcp_rr --nolog -P 10002 -C 10012 -4 hout LAT tcp_rr --nolog -P 10002 -C 10012 -4 -c -H 127.0.0.1 | sed -n 's/^throughput=\(.*\)/\1/p' nsw lat __LAT__ 150 100 tl TCP CRR latency over IPv4: host to ns lat - lat - lat - sleep 1 nsb tcp_crr --nolog -P 10002 -C 10012 -4 hout LAT tcp_crr --nolog -P 10002 -C 10012 -4 -c -H 127.0.0.1 | sed -n 's/^throughput=\(.*\)/\1/p' nsw lat __LAT__ 1000 700 te test pasta: throughput and latency (connections via tap) nsout GW ip -j -4 route show|jq -rM '.[] | select(.dst == "default").gateway' nsout GW6 ip -j -6 route show|jq -rM '.[] | select(.dst == "default").gateway' nsout IFNAME ip -j link show | jq -rM '.[] | select(.link_type == "ether").ifname' set THREADS 1 set STREAMS 2 set OPTS -Z -P __STREAMS__ -i1 -O__OMIT__ --pacing-timer 100000 info Throughput in Gbps, latency in µs, one thread at __FREQ__ GHz, __STREAMS__ streams report pasta tap_tcp __THREADS__ __FREQ__ th MTU 1500B 4000B 16384B 65520B tr TCP throughput over IPv6: ns to host ns ip link set dev __IFNAME__ mtu 1500 iperf3 BW ns host __GW6__%__IFNAME__ 100${i}3 __THREADS__ __TIME__ __OPTS__ -w 512k bw __BW__ 0.2 0.4 ns ip link set dev __IFNAME__ mtu 4000 iperf3 BW ns host __GW6__%__IFNAME__ 100${i}3 __THREADS__ __TIME__ __OPTS__ -w 1M bw __BW__ 0.3 0.5 ns ip link set dev __IFNAME__ mtu 16384 iperf3 BW ns host __GW6__%__IFNAME__ 100${i}3 __THREADS__ __TIME__ __OPTS__ -w 8M bw __BW__ 1.5 2.0 ns ip link set dev __IFNAME__ mtu 65520 iperf3 BW ns host __GW6__%__IFNAME__ 100${i}3 __THREADS__ __TIME__ __OPTS__ -w 8M bw __BW__ 2.0 2.5 tl TCP RR latency over IPv6: ns to host lat - lat - lat - hostb tcp_rr --nolog -P 10003 -C 10013 -6 nsout LAT tcp_rr --nolog -P 10003 -C 10013 -6 -c -H __GW6__%__IFNAME__ | sed -n 's/^throughput=\(.*\)/\1/p' hostw lat __LAT__ 150 100 tl TCP CRR latency over IPv6: ns to host lat - lat - lat - hostb tcp_crr --nolog -P 10003 -C 10013 -6 nsout LAT tcp_crr --nolog -P 10003 -C 10013 -6 -c -H __GW6__%__IFNAME__ | sed -n 's/^throughput=\(.*\)/\1/p' hostw lat __LAT__ 1500 500 tr TCP throughput over IPv4: ns to host ns ip link set dev __IFNAME__ mtu 1500 iperf3 BW ns host __GW__ 100${i}3 __THREADS__ __TIME__ __OPTS__ -w 512k bw __BW__ 0.2 0.4 ns ip link set dev __IFNAME__ mtu 4000 iperf3s BW ns host __GW__ 100${i}3 __THREADS__ __TIME__ __OPTS__ -w 1M bw __BW__ 0.3 0.5 ns ip link set dev __IFNAME__ mtu 16384 iperf3 BW ns host __GW__ 100${i}3 __THREADS__ __TIME__ __OPTS__ -w 8M bw __BW__ 1.5 2.0 ns ip link set dev __IFNAME__ mtu 65520 iperf3 BW ns host __GW__ 100${i}3 __THREADS__ __TIME__ __OPTS__ -w 8M bw __BW__ 2.0 2.5 tl TCP RR latency over IPv4: ns to host lat - lat - lat - hostb tcp_rr --nolog -P 10003 -C 10013 -4 nsout LAT tcp_rr --nolog -P 10003 -C 10013 -4 -c -H __GW__ | sed -n 's/^throughput=\(.*\)/\1/p' hostw lat __LAT__ 150 100 tl TCP CRR latency over IPv4: ns to host lat - lat - lat - hostb tcp_crr --nolog -P 10003 -C 10013 -4 nsout LAT tcp_crr --nolog -P 10003 -C 10013 -4 -c -H __GW__ | sed -n 's/^throughput=\(.*\)/\1/p' hostw lat __LAT__ 1500 500 te