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# SPDX-License-Identifier: GPL-2.0-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 <sbrivio@redhat.com>
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 4
set TIME 10
set OMIT 0.1
set OPTS -Z -w 4M -l 1M -P __THREADS__ -O__OMIT__
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
report pasta lo_tcp __THREADS__ __FREQ__
th MTU 65535B
tr TCP throughput over IPv6: ns to host
iperf3s host 10003
iperf3 BW ns ::1 10003 __THREADS__ __TIME__ __OPTS__
bw __BW__ 15.0 20.0
iperf3k host
tl TCP RR latency over IPv6: ns to host
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
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
iperf3s host 10003
iperf3 BW ns 127.0.0.1 10003 __THREADS__ __TIME__ __OPTS__
bw __BW__ 15.0 20.0
iperf3k host
tl TCP RR latency over IPv4: ns to host
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
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
iperf3s ns 10002
iperf3 BW host ::1 10002 __TIME__ __OPTS__
bw __BW__ 15.0 20.0
iperf3k ns
tl TCP RR latency over IPv6: host to ns
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
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
iperf3s ns 10002
iperf3 BW host 127.0.0.1 10002 __TIME__ __OPTS__
bw __BW__ 15.0 20.0
iperf3k ns
tl TCP RR latency over IPv4: host to ns
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
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 2
set OPTS -Z -P __THREADS__ -i1 -O__OMIT__
info Throughput in Gbps, latency in µs, __THREADS__ threads at __FREQ__ GHz
report pasta tap_tcp __THREADS__ __FREQ__
th MTU 1500B 4000B 16384B 65520B
tr TCP throughput over IPv6: ns to host
iperf3s host 10003
ns ip link set dev __IFNAME__ mtu 1500
iperf3 BW ns __GW6__%__IFNAME__ 10003 __TIME__ __OPTS__ -w 512k
bw __BW__ 0.2 0.4
ns ip link set dev __IFNAME__ mtu 4000
iperf3 BW ns __GW6__%__IFNAME__ 10003 __TIME__ __OPTS__ -w 1M
bw __BW__ 0.3 0.5
ns ip link set dev __IFNAME__ mtu 16384
iperf3 BW ns __GW6__%__IFNAME__ 10003 __TIME__ __OPTS__ -w 8M
bw __BW__ 1.5 2.0
ns ip link set dev __IFNAME__ mtu 65520
iperf3 BW ns __GW6__%__IFNAME__ 10003 __TIME__ __OPTS__ -w 8M
bw __BW__ 2.0 2.5
iperf3k host
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
iperf3s host 10003
ns ip link set dev __IFNAME__ mtu 1500
iperf3 BW ns __GW__ 10003 __TIME__ __OPTS__ -w 512k
bw __BW__ 0.2 0.4
ns ip link set dev __IFNAME__ mtu 4000
iperf3 BW ns __GW__ 10003 __TIME__ __OPTS__ -w 1M
bw __BW__ 0.3 0.5
ns ip link set dev __IFNAME__ mtu 16384
iperf3 BW ns __GW__ 10003 __TIME__ __OPTS__ -w 8M
bw __BW__ 1.5 2.0
ns ip link set dev __IFNAME__ mtu 65520
iperf3 BW ns __GW__ 10003 __TIME__ __OPTS__ -w 8M
bw __BW__ 2.0 2.5
iperf3k host
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
tr TCP throughput over IPv6: host to ns
iperf3s ns 10002
nsout IFNAME ip -j link show | jq -rM '.[] | select(.link_type == "ether").ifname'
nsout ADDR6 ip -j -6 addr show|jq -rM '.[] | select(.ifname == "__IFNAME__").addr_info[] | select(.scope == "global" and .prefixlen == 64).local'
bw -
bw -
bw -
iperf3 BW host __ADDR6__ 10002 __TIME__ __OPTS__
bw __BW__ 8.0 10.0
iperf3k ns
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 __ADDR6__ | sed -n 's/^throughput=\(.*\)/\1/p'
nsw
lat __LAT__ 150 100
tl TCP CRR latency over IPv6: host to ns
lat -
lat -
lat -
sleep 1
nsb tcp_crr --nolog -P 10002 -C 10012 -6
hout LAT tcp_crr --nolog -P 10002 -C 10012 -6 -c -H __ADDR6__ | sed -n 's/^throughput=\(.*\)/\1/p'
nsw
lat __LAT__ 5000 10000
tr TCP throughput over IPv4: host to ns
iperf3s ns 10002
nsout ADDR ip -j -4 addr show|jq -rM '.[] | select(.ifname == "__IFNAME__").addr_info[0].local'
bw -
bw -
bw -
iperf3 BW host __ADDR__ 10002 __TIME__ __OPTS__
bw __BW__ 8.0 10.0
iperf3k ns
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 __ADDR__ | 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 __ADDR__ | sed -n 's/^throughput=\(.*\)/\1/p'
nsw
lat __LAT__ 5000 10000
te
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