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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/passt_tcp - Check TCP performance in passt mode
#
# Copyright (c) 2021 Red Hat GmbH
# Author: Stefano Brivio <sbrivio@redhat.com>

gtools	/sbin/sysctl ip jq nproc seq sleep iperf3 tcp_rr tcp_crr # From neper
nstools	/sbin/sysctl ip jq nproc seq sleep iperf3 tcp_rr tcp_crr
htools	bc head sed seq

test	passt: throughput and latency

guest	/sbin/sysctl -w net.core.rmem_max=536870912
guest	/sbin/sysctl -w net.core.wmem_max=536870912
guest	/sbin/sysctl -w net.core.rmem_default=33554432
guest	/sbin/sysctl -w net.core.wmem_default=33554432
guest	/sbin/sysctl -w net.ipv4.tcp_rmem="4096 131072 268435456"
guest	/sbin/sysctl -w net.ipv4.tcp_wmem="4096 131072 268435456"
guest	/sbin/sysctl -w net.ipv4.tcp_timestamps=0

ns	/sbin/sysctl -w net.ipv4.tcp_rmem="4096 524288 134217728"
ns	/sbin/sysctl -w net.ipv4.tcp_wmem="4096 524288 134217728"
ns	/sbin/sysctl -w net.ipv4.tcp_timestamps=0

gout	GW ip -j -4 route show|jq -rM '.[] | select(.dst == "default").gateway'
gout	GW6 ip -j -6 route show|jq -rM '.[] | select(.dst == "default").gateway'
gout	IFNAME ip -j link show | jq -rM '.[] | select(.link_type == "ether").ifname'

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__

set	THREADS 4
set	TIME 10
set	OMIT 0.1
set	OPTS -Z -P __THREADS__ -l 1M -O__OMIT__

info	Throughput in Gbps, latency in µs, __THREADS__ threads at __FREQ__ GHz
report	passt tcp __THREADS__ __FREQ__

th	MTU 256B 576B 1280B 1500B 9000B 65520B


tr	TCP throughput over IPv6: guest to host
iperf3s	ns 10002

bw	-
bw	-
guest	ip link set dev __IFNAME__ mtu 1280
iperf3	BW guest __GW6__%__IFNAME__ 10002 __TIME__ __OPTS__ -w 4M
bw	__BW__ 1.2 1.5
guest	ip link set dev __IFNAME__ mtu 1500
iperf3	BW guest __GW6__%__IFNAME__ 10002 __TIME__ __OPTS__ -w 4M
bw	__BW__ 1.6 1.8
guest	ip link set dev __IFNAME__ mtu 9000
iperf3	BW guest __GW6__%__IFNAME__ 10002 __TIME__ __OPTS__ -w 8M
bw	__BW__ 4.0 5.0
guest	ip link set dev __IFNAME__ mtu 65520
iperf3	BW guest __GW6__%__IFNAME__ 10002 __TIME__ __OPTS__ -w 16M
bw	__BW__ 7.0 8.0

iperf3k	ns

tl	TCP RR latency over IPv6: guest to host
lat	-
lat	-
lat	-
lat	-
lat	-
nsb	tcp_rr --nolog -6
gout	LAT tcp_rr --nolog -6 -c -H __GW6__%__IFNAME__ | sed -n 's/^throughput=\(.*\)/\1/p'
lat	__LAT__ 200 150

tl	TCP CRR latency over IPv6: guest to host
lat	-
lat	-
lat	-
lat	-
lat	-
nsb	tcp_crr --nolog -6
gout	LAT tcp_crr --nolog -6 -c -H __GW6__%__IFNAME__ | sed -n 's/^throughput=\(.*\)/\1/p'
lat	__LAT__ 500 400

tr	TCP throughput over IPv4: guest to host
iperf3s	ns 10002

guest	ip link set dev __IFNAME__ mtu 256
iperf3	BW guest __GW__ 10002 __TIME__ __OPTS__ -w 1M
bw	__BW__ 0.2 0.3
guest	ip link set dev __IFNAME__ mtu 576
iperf3	BW guest __GW__ 10002 __TIME__ __OPTS__ -w 1M
bw	__BW__ 0.5 0.8
guest	ip link set dev __IFNAME__ mtu 1280
iperf3	BW guest __GW__ 10002 __TIME__ __OPTS__ -w 4M
bw	__BW__ 1.2 1.5
guest	ip link set dev __IFNAME__ mtu 1500
iperf3	BW guest __GW__ 10002 __TIME__ __OPTS__ -w 4M
bw	__BW__ 1.6 1.8
guest	ip link set dev __IFNAME__ mtu 9000
iperf3	BW guest __GW__ 10002 __TIME__ __OPTS__ -w 8M
bw	__BW__ 4.0 5.0
guest	ip link set dev __IFNAME__ mtu 65520
iperf3	BW guest __GW__ 10002 __TIME__ __OPTS__ -w 16M
bw	__BW__ 7.0 8.0

iperf3k	ns

tl	TCP RR latency over IPv4: guest to host
lat	-
lat	-
lat	-
lat	-
lat	-
nsb	tcp_rr --nolog -4
gout	LAT tcp_rr --nolog -4 -c -H __GW__ | sed -n 's/^throughput=\(.*\)/\1/p'
lat	__LAT__ 200 150

tl	TCP CRR latency over IPv4: guest to host
lat	-
lat	-
lat	-
lat	-
lat	-
nsb	tcp_crr --nolog -4
gout	LAT tcp_crr --nolog -4 -c -H __GW__ | sed -n 's/^throughput=\(.*\)/\1/p'
lat	__LAT__ 500 400

tr	TCP throughput over IPv6: host to guest
iperf3s	guest 10001

bw	-
bw	-
bw	-
bw	-
bw	-
iperf3	BW ns ::1 10001 __TIME__ __OPTS__
bw	__BW__ 6.0 6.8

iperf3k	guest

tl	TCP RR latency over IPv6: host to guest
lat	-
lat	-
lat	-
lat	-
lat	-
guestb	tcp_rr --nolog -P 10001 -C 10011 -6
sleep	1
nsout	LAT tcp_rr --nolog -P 10001 -C 10011 -6 -c -H ::1 | sed -n 's/^throughput=\(.*\)/\1/p'
lat	__LAT__ 200 150

tl	TCP CRR latency over IPv6: host to guest
lat	-
lat	-
lat	-
lat	-
lat	-
guestb	tcp_crr --nolog -P 10001 -C 10011 -6
sleep	1
nsout	LAT tcp_crr --nolog -P 10001 -C 10011 -6 -c -H ::1 | sed -n 's/^throughput=\(.*\)/\1/p'
lat	__LAT__ 500 350


tr	TCP throughput over IPv4: host to guest
iperf3s	guest 10001

bw	-
bw	-
bw	-
bw	-
bw	-
iperf3	BW ns 127.0.0.1 10001 __TIME__ __OPTS__
bw	__BW__ 6.0 6.8

iperf3k	guest

tl	TCP RR latency over IPv4: host to guest
lat	-
lat	-
lat	-
lat	-
lat	-
guestb	tcp_rr --nolog -P 10001 -C 10011 -4
sleep	1
nsout	LAT tcp_rr --nolog -P 10001 -C 10011 -4 -c -H 127.0.0.1 | sed -n 's/^throughput=\(.*\)/\1/p'
lat	__LAT__ 200 150

tl	TCP CRR latency over IPv6: host to guest
lat	-
lat	-
lat	-
lat	-
lat	-
guestb	tcp_crr --nolog -P 10001 -C 10011 -4
sleep	1
nsout	LAT tcp_crr --nolog -P 10001 -C 10011 -4 -c -H 127.0.0.1 | sed -n 's/^throughput=\(.*\)/\1/p'
lat	__LAT__ 500 300

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