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Diffstat (limited to 'test/demo/pasta')
| -rw-r--r-- | test/demo/pasta | 274 |
1 files changed, 274 insertions, 0 deletions
diff --git a/test/demo/pasta b/test/demo/pasta new file mode 100644 index 0000000..508323a --- /dev/null +++ b/test/demo/pasta @@ -0,0 +1,274 @@ +# 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/demo/pasta - Quick introduction to pasta +# +# Copyright (c) 2021 Red Hat GmbH +# Author: Stefano Brivio <sbrivio@redhat.com> + +onlyfor pasta +say This is a short introduction to +em pasta +say . +nl +nl +sleep 3 + +say Let's fetch the source +sleep 1 +tempdir TEMPDIR +host cd __TEMPDIR__ +host git clone https://passt.top/passt +sleep 1 + +say and build it. +sleep 1 +host cd passt +host make +sleep 1 + +nl +nl +say A quick look at the man page... +sleep 1 +hostb man ./pasta.1 +sleep 5 +hostb /pasta +sleep 2 +hostb n +sleep 2 +hostb n +sleep 10 + +nl +say without TARGET_PID, it will create a namespace. +sleep 3 +passt cd __TEMPDIR__/passt +passt ./pasta +sleep 3 + +nl +nl +say For convenience, let's enter this namespace +nl +say from another terminal. +sleep 3 +pout TARGET_PID echo $$ +sleep 1 + +ns nsenter -t __TARGET_PID__ -U -n --preserve-credentials +sleep 5 + +nl +nl +say Now, we're ready to configure networking. +sleep 2 +host q + +nl +nl +ns ip li sh +sleep 3 +say Let's configure IPv4 first... +sleep 2 +ns dhclient +sleep 2 +ns ip ad sh +sleep 5 + +nl +say SLAAC is already done, but we can also +nl +say get another address via DHCPv6. +sleep 3 +ns dhclient -6 +sleep 3 + +nl +nl +say Let's try to communicate between host and namespace +sleep 2 +nl +say ...there's no need to configure port forwarding, +nl +say pasta detects bound ports and forwards them. +sleep 3 + +nsb nc -6 -l -p 31337 +sleep 2 +host echo "Hello from the host" | nc -N ::1 31337 +sleep 5 + +nl +nl +say Now the other way around... +nl +say we can use a loopback address +sleep +hostb nc -l -p 31337 +sleep 2 +ns echo "Hello from the namespace" | nc -N 127.0.0.1 31337 +sleep 5 + +nl +say or the address of the default gateway. +sleep 2 +nsout GW ip -j -4 ro sh|jq -rM '.[] | select(.dst == "default").gateway' +sleep 5 +hostb nc -l -p 31337 +sleep 2 +ns echo "Hello from the namespace" | nc -N __GW__ 31337 +sleep 3 + +nl +nl +say UDP... +sleep 2 +ns host -t A passt.top +sleep 3 +say seems to work too. +sleep 3 + +nl +nl +em pasta +say can also take packet captures. +sleep 3 +passt exit +sleep 2 +temp TEMP +passtb ./pasta -p __TEMP__.pcap +sleep 2 +passt +passt /sbin/dhclient +sleep 2 +hostb tshark -r __TEMP__.pcap +sleep 5 + +nl +nl +say And there are tons of totally useless +sleep 1 +bsp 14 +say absolutely useful features +nl +say you can find described in the man page. +sleep 5 + +nl +nl +say Let's have a (quick!) look at performance +nl +say more in the "Performance" section below. +sleep 3 +passt exit +passt CFLAGS="-g" make avx2 +sleep 2 +passt perf record -g ./pasta +sleep 2 + +pout TARGET_PID echo $$ +sleep 1 +ns nsenter -t __TARGET_PID__ -U -n --preserve-credentials +sleep 5 + +nl +nl +info Throughput in Gbps, latency in µs +th flow init>ns ns>init + +set OPTS -P4 -l 1M -w 32M -i1 --pacing-timer 100000 + +tr TCP/IPv6 throughput +nsb sleep 10; iperf3 -c ::1 __OPTS__ +hout BW iperf3 -s1J | jq -rM ".end.sum_received.bits_per_second" +bw __BW__ 10.0 20.0 +sleep 5 +hostb sleep 10; iperf3 -c ::1 __OPTS__ +nsout BW iperf3 -s1J | jq -rM ".end.sum_received.bits_per_second" +bw __BW__ 10.0 20.0 + +tl TCP/IPv6 RR latency +hostb tcp_rr -6 --nolog +sleep 2 +nsout LAT tcp_rr --nolog -c -H ::1 | sed -n 's/^throughput=\(.*\)/\1/p' +lat __LAT__ 1000 500 +sleep 2 +nsb tcp_rr -6 --nolog +sleep 2 +hout LAT tcp_rr --nolog -c -H ::1 | sed -n 's/^throughput=\(.*\)/\1/p' +lat __LAT__ 1000 500 +sleep 2 + +tl TCP/IPv6 CRR latency +hostb tcp_crr -6 --nolog +sleep 2 +nsout LAT tcp_crr --nolog -c -H ::1 | sed -n 's/^throughput=\(.*\)/\1/p' +lat __LAT__ 1000 500 +sleep 2 +nsb tcp_crr -6 --nolog +sleep 2 +hout LAT tcp_crr --nolog -c -H ::1 | sed -n 's/^throughput=\(.*\)/\1/p' +lat __LAT__ 1000 500 +sleep 2 + +tr TCP/IPv4 throughput +nsb sleep 10; iperf3 -c 127.0.0.1 __OPTS__ +hout BW iperf3 -s1J | jq -rM ".end.sum_received.bits_per_second" +bw __BW__ 10.0 20.0 +sleep 5 +hostb sleep 10; iperf3 -c 127.0.0.1 __OPTS__ +nsout BW iperf3 -s1J | jq -rM ".end.sum_received.bits_per_second" +bw __BW__ 10.0 20.0 + +tl TCP/IPv4 RR latency +hostb tcp_rr -4 --nolog +sleep 2 +nsout LAT tcp_rr --nolog -c -H 127.0.0.1 | sed -n 's/^throughput=\(.*\)/\1/p' +lat __LAT__ 1000 500 +sleep 2 +nsb tcp_rr -4 --nolog +sleep 2 +hout LAT tcp_rr --nolog -c -H 127.0.0.1 | sed -n 's/^throughput=\(.*\)/\1/p' +lat __LAT__ 1000 500 +sleep 2 + +tl TCP/IPv4 CRR latency +hostb tcp_crr -4 --nolog +sleep 2 +nsout LAT tcp_crr --nolog -c -H 127.0.0.1 | sed -n 's/^throughput=\(.*\)/\1/p' +lat __LAT__ 1000 500 +sleep 2 +nsb tcp_crr -4 --nolog +sleep 2 +hout LAT tcp_crr --nolog -c -H 127.0.0.1 | sed -n 's/^throughput=\(.*\)/\1/p' +lat __LAT__ 1000 500 +sleep 2 + +sleep 5 +passt exit +sleep 2 +killp PASST +killp HOST +sleep 2 +nsb perf report -g --max-stack 3 +sleep 10 + +nl +nl +say I +em knew +say it. +em syscalls +say . +sleep 5 + +nl +nl +say Thanks for watching! +sleep 5 |