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passt/test/perf/passt_udp
Stefano Brivio 946206437a test: Speed up by cutting on eye candy and performance test duration 
We have a number of delays when we switch to new layouts that were
added to make the tests visually easier to follow, together with
blinking status bars. Shorten the delays and avoid blinking the
status bar if $FAST is set to 1 (no demo mode).

Shorten delays in busy loops to 10ms, instead of 100ms, and skip the
one-second fixed delay when we wait for the status of a command.

Cut the duration of throughput and latency tests to one second, down
from ten. Somewhat surprisingly, the results we get are rather
consistent, and not significantly different from what we'd get with
10 seconds.

This, together with Podman's commit 20f3e8909e3a ("test/system:
pasta_test_do add explicit port check"), cuts the time needed on my
setup for full test run from approximately 37 minutes to...:

  $ time ./run
  [exited]
  PASS: 165, FAIL: 0
  Log at /home/sbrivio/passt/test/test_logs/test.log

  real	15m34.253s
  user	0m0.011s
  sys	0m0.011s

Signed-off-by: Stefano Brivio <sbrivio@redhat.com>
Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
Tested-by: David Gibson <david@gibson.dropbear.id.au>
2024-08-15 09:13:15 +02:00

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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_udp - Check UDP performance in passt mode
#
# Copyright (c) 2021 Red Hat GmbH
# Author: Stefano Brivio <sbrivio@redhat.com>
gtools /sbin/sysctl ip jq nproc sleep iperf3 udp_rr # From neper
nstools ip jq sleep iperf3 udp_rr
htools bc head sed
test passt: throughput and latency
guest /sbin/sysctl -w net.core.rmem_max=16777216
guest /sbin/sysctl -w net.core.wmem_max=16777216
guest /sbin/sysctl -w net.core.rmem_default=16777216
guest /sbin/sysctl -w net.core.wmem_default=16777216
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 2
set TIME 1
set OPTS -u -P __THREADS__ --pacing-timer 1000
info Throughput in Gbps, latency in µs, __THREADS__ threads at __FREQ__ GHz
report passt udp __THREADS__ __FREQ__
th pktlen 256B 576B 1280B 1500B 9000B 65520B
tr UDP throughput over IPv6: guest to host
iperf3s ns 10002
# (datagram size) = (packet size) - 48: 40 bytes of IPv6 header, 8 of UDP header
bw -
bw -
iperf3 BW guest __GW6__%__IFNAME__ 10002 __TIME__ __OPTS__ -b 3G -l 1232
bw __BW__ 0.8 1.2
iperf3 BW guest __GW6__%__IFNAME__ 10002 __TIME__ __OPTS__ -b 4G -l 1452
bw __BW__ 1.0 1.5
iperf3 BW guest __GW6__%__IFNAME__ 10002 __TIME__ __OPTS__ -b 8G -l 8952
bw __BW__ 4.0 5.0
iperf3 BW guest __GW6__%__IFNAME__ 10002 __TIME__ __OPTS__ -b 15G -l 64372
bw __BW__ 4.0 5.0
iperf3k ns
tl UDP RR latency over IPv6: guest to host
lat -
lat -
lat -
lat -
lat -
nsb udp_rr --nolog -6
gout LAT udp_rr --nolog -6 -c -H __GW6__%__IFNAME__ | sed -n 's/^throughput=\(.*\)/\1/p'
lat __LAT__ 200 150
tr UDP throughput over IPv4: guest to host
iperf3s ns 10002
# (datagram size) = (packet size) - 28: 20 bytes of IPv4 header, 8 of UDP header
iperf3 BW guest __GW__ 10002 __TIME__ __OPTS__ -b 1G -l 228
bw __BW__ 0.0 0.0
iperf3 BW guest __GW__ 10002 __TIME__ __OPTS__ -b 2G -l 548
bw __BW__ 0.4 0.6
iperf3 BW guest __GW__ 10002 __TIME__ __OPTS__ -b 3G -l 1252
bw __BW__ 0.8 1.2
iperf3 BW guest __GW__ 10002 __TIME__ __OPTS__ -b 4G -l 1472
bw __BW__ 1.0 1.5
iperf3 BW guest __GW__ 10002 __TIME__ __OPTS__ -b 8G -l 8972
bw __BW__ 4.0 5.0
iperf3 BW guest __GW__ 10002 __TIME__ __OPTS__ -b 15G -l 65492
bw __BW__ 4.0 5.0
iperf3k ns
tl UDP RR latency over IPv4: guest to host
lat -
lat -
lat -
lat -
lat -
nsb udp_rr --nolog -4
gout LAT udp_rr --nolog -4 -c -H __GW__ | sed -n 's/^throughput=\(.*\)/\1/p'
lat __LAT__ 200 150
tr UDP throughput over IPv6: host to guest
iperf3s guest 10001
# (datagram size) = (packet size) - 48: 40 bytes of IPv6 header, 8 of UDP header
bw -
bw -
iperf3 BW ns ::1 10001 __TIME__ __OPTS__ -b 3G -l 1232
bw __BW__ 0.8 1.2
iperf3 BW ns ::1 10001 __TIME__ __OPTS__ -b 4G -l 1452
bw __BW__ 1.0 1.5
iperf3 BW ns ::1 10001 __TIME__ __OPTS__ -b 8G -l 8952
bw __BW__ 3.0 4.0
iperf3 BW ns ::1 10001 __TIME__ __OPTS__ -b 15G -l 64372
bw __BW__ 3.0 4.0
iperf3k guest
tl UDP RR latency over IPv6: host to guest
lat -
lat -
lat -
lat -
lat -
guestb udp_rr --nolog -P 10001 -C 10011 -6
sleep 1
nsout LAT udp_rr --nolog -P 10001 -C 10011 -6 -c -H ::1 | sed -n 's/^throughput=\(.*\)/\1/p'
lat __LAT__ 200 150
tr UDP throughput over IPv4: host to guest
iperf3s guest 10001
# (datagram size) = (packet size) - 28: 20 bytes of IPv4 header, 8 of UDP header
iperf3 BW ns 127.0.0.1 10001 __TIME__ __OPTS__ -b 1G -l 228
bw __BW__ 0.0 0.0
iperf3 BW ns 127.0.0.1 10001 __TIME__ __OPTS__ -b 2G -l 548
bw __BW__ 0.4 0.6
iperf3 BW ns 127.0.0.1 10001 __TIME__ __OPTS__ -b 3G -l 1252
bw __BW__ 0.8 1.2
iperf3 BW ns 127.0.0.1 10001 __TIME__ __OPTS__ -b 4G -l 1472
bw __BW__ 1.0 1.5
iperf3 BW ns 127.0.0.1 10001 __TIME__ __OPTS__ -b 8G -l 8972
bw __BW__ 3.0 4.0
iperf3 BW ns 127.0.0.1 10001 __TIME__ __OPTS__ -b 15G -l 65492
bw __BW__ 3.0 4.0
iperf3k guest
tl UDP RR latency over IPv4: host to guest
lat -
lat -
lat -
lat -
lat -
guestb udp_rr --nolog -P 10001 -C 10011 -4
sleep 1
nsout LAT udp_rr --nolog -P 10001 -C 10011 -4 -c -H 127.0.0.1 | sed -n 's/^throughput=\(.*\)/\1/p'
lat __LAT__ 200 150
te
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