mirror of
https://github.com/richb-hanover/OpenWrtScripts.git
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272 lines
8.5 KiB
Bash
Executable file
272 lines
8.5 KiB
Bash
Executable file
#! /bin/sh
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# Netperfrunner.sh - a shell script that runs several netperf commands simultaneously.
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# This mimics the stress test of Flent (www.flent.org - formerly, "netperf-wrapper")
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# from Toke <toke@toke.dk> but doesn't have the nice GUI result.
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# This can live in /usr/lib/OpenWrtScripts
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#
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# When you start this script, it concurrently uploads and downloads multiple
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# streams (files) to a server on the Internet. This places a heavy load
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# on the bottleneck link of your network (probably your connection to the
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# Internet). It also starts a ping to a well-connected host. It displays:
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#
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# a) total bandwidth available
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# b) the distribution of ping latency
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# Usage: sh netperfrunner.sh -Z passphrase [ -4 -6 ] [ -H netperf-server ] [ -t duration ] [ -t host-to-ping ] [ -n simultaneous-streams ]
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# Options: If options are present:
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#
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# -H | --host: DNS or Address of a netperf server (default - netperf.bufferbloat.net)
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# Alternate servers are netperf-east (east coast US), netperf-west (California),
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# and netperf-eu (Denmark)
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# -4 | -6: IPv4 or IPv6
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# -t | --time: Duration for how long each direction's test should run - (default - 60 seconds)
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# -p | --ping: Host to ping to measure latency (default - gstatic.com)
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# -n | --number: Number of simultaneous sessions (default - 5 sessions)
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# -Z passphrase: Passphrase required for netperf.bufferbloat.net
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# Copyright (c) 2014-2024 - Rich Brown rich.brown@blueberryhillsoftware.com
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# GPLv2
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# Process the ping times from the passed-in file, and summarize the results
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# grep to keep lines that have "time=", then sed to isolate the time stamps, and sort them
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# Use awk to build an array of those values, and print first & last (which are min, max)
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# and compute average.
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# If the number of samples is >= 10, also compute median, and 10th and 90th percentile readings
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# Display the values as:
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# Latency: (in msec, 11 pings, 8.33% packet loss)
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# Min: 16.556
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# 10pct: 16.561
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# Median: 22.370
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# Avg: 21.203
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# 90pct: 23.202
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# Max: 23.394
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summarize_pings() {
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grep "time" < "$1" | cat | \
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sed 's/^.*time=\([^ ]*\) ms/\1/'| \
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# tee >&2 | \
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sort -n | \
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awk 'BEGIN {numdrops=0; numrows=0} \
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{ \
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# print ; \
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if ( $0 ~ /timeout/ ) { \
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numdrops += 1; \
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} else { \
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numrows += 1; \
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arr[numrows]=$1; sum+=$1; \
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} \
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} \
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END { \
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pc10="-"; pc90="-"; med="-"; \
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if (numrows == 0) {numrows=1} \
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if (numrows>=10) \
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{ # get the 10th pctile - never the first one
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ix=int(numrows/10); if (ix=1) {ix+=1}; pc10=arr[ix]; \
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# get the 90th pctile
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ix=int(numrows*9/10);pc90=arr[ix]; \
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# get the median
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if (numrows%2==1) med=arr[(numrows+1)/2]; else med=(arr[numrows/2]); \
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}; \
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pktloss = numdrops/(numdrops+numrows) * 100; \
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printf("\n Latency: (in msec, %d pings, %4.2f%% packet loss)\n Min: %4.3f \n 10pct: %4.3f \n Median: %4.3f \n Avg: %4.3f \n 90pct: %4.3f \n Max: %4.3f\n", numrows, pktloss, arr[1], pc10, med, sum/numrows, pc90, arr[numrows] )\
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}'
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}
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# Print a line of dots as a progress indicator.
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print_dots() {
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while : ; do
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printf "."
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sleep 1
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done
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}
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# Stop the current print_dots() process
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kill_dots() {
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# echo "Pings: $ping_pid Dots: $dots_pid"
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kill -9 "$dots_pid"
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wait "$dots_pid" 2>/dev/null
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dots_pid=0
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}
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# Stop the current ping process
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kill_pings() {
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# echo "Pings: $ping_pid Dots: $dots_pid"
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kill -9 "$ping_pid"
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wait "$ping_pid" 2>/dev/null
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ping_pid=0
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}
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# Clean up all the debris from the testing
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clean_up() {
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kill_pings
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kill_dots
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rm "$PINGFILE"
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rm "$ULFILE"
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rm "$DLFILE"
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rm "$ERRFILE"
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}
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# Display "no passphrase" message and exit
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no_passphrase() {
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echo ""
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echo "Missing passphrase - see https://$TESTHOST"
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echo ""
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exit 1
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}
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# ------- Start of the main routine --------
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# Usage: sh betterspeedtest.sh [ -H netperf-server ] [ -t duration ] [ -p host-to-ping ]
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# “H” and “host” DNS or IP address of the netperf server host (default: netperf.bufferbloat.net)
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# “t” and “time” Time to run the test in each direction (default: 60 seconds)
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# “p” and “ping” Host to ping for latency measurements (default: gstatic.com)
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# "n" and "number" Number of simultaneous upload or download sessions (default: 4 sessions;
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# 4 sessions chosen to match default of RRUL test)
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# set an initial values for defaults
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TESTHOST="netperf.bufferbloat.net"
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TESTDUR="60"
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PING4=ping
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command -v ping4 > /dev/null 2>&1 && PING4=ping4
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PING6=ping6
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PINGHOST="gstatic.com"
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MAXSESSIONS=4
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TESTPROTO=-4
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# Create temp files for netperf up/download results
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ULFILE=`mktemp /tmp/netperfUL.XXXXXX` || exit 1
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DLFILE=`mktemp /tmp/netperfDL.XXXXXX` || exit 1
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PINGFILE=`mktemp /tmp/measurepings.XXXXXX` || exit 1
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ERRFILE=$(mktemp /tmp/netperfErr.XXXXXX) || exit 1
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# echo $ULFILE $DLFILE $PINGFILE
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# read the options
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# extract options and their arguments into variables.
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while [ $# -gt 0 ]
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do
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case "$1" in
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-4|-6) TESTPROTO=$1; shift 1 ;;
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-H|--host)
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case "$2" in
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"") echo "Missing hostname" ; exit 1 ;;
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*) TESTHOST=$2 ; shift 2 ;;
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esac ;;
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-t|--time)
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case "$2" in
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"") echo "Missing duration" ; exit 1 ;;
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*) TESTDUR=$2 ; shift 2 ;;
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esac ;;
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-p|--ping)
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case "$2" in
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"") echo "Missing ping host" ; exit 1 ;;
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*) PINGHOST=$2 ; shift 2 ;;
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esac ;;
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-n|--number)
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case "$2" in
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"") echo "Missing number of simultaneous sessions" ; exit 1 ;;
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*) MAXSESSIONS=$2 ; shift 2 ;;
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esac ;;
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-Z)
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case "$2" in
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"") no_passphrase ; exit 1 ;;
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*) PASSPHRASEOPTION="-Z $2" ; shift 2 ;;
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esac ;;
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--) shift ; break ;;
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*) echo "Usage: sh Netperfrunner.sh -Z passphrase [ -H netperf-server ] [ -t duration ] [ -p host-to-ping ] [ -n simultaneous-streams ]" ; exit 1 ;;
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esac
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done
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# Start main test
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if [ $TESTPROTO -eq "-4" ]
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then
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PROTO="ipv4"
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else
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PROTO="ipv6"
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fi
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DATE=`date "+%Y-%m-%d %H:%M:%S"`
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echo "$DATE Testing $TESTHOST ($PROTO) with $MAXSESSIONS streams down and up while pinging $PINGHOST. Takes about $TESTDUR seconds."
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# echo "It downloads four files, and concurrently uploads four files for maximum stress."
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# echo "It also pings a well-connected host, and prints a summary of the latency results."
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# echo "This test is part of the CeroWrt project. To learn more, visit:"
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# echo " http://bufferbloat.net/projects/cerowrt/"
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# ------------ start_pings() ----------------
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# Start printing dots, then start a ping process, saving the results to a PINGFILE
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start_pings() {
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# Create temp file
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PINGFILE=$(mktemp /tmp/measurepings.XXXXXX) || exit 1
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# Start dots
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print_dots &
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dots_pid=$!
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# echo "Dots PID: $dots_pid"
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# Start Ping
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if [ "$TESTPROTO" -eq "-4" ]
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then
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"$PING4" "$PINGHOST" > "$PINGFILE" &
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else
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"$PING6" "$PINGHOST" > "$PINGFILE" &
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fi
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ping_pid=$!
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# echo "Ping PID: $ping_pid"
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}
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start_pings
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# Start $MAXSESSIONS upload datastreams from netperf client to the netperf server
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# netperf writes the sole output value (in Mbps) to stdout when completed
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for i in $( seq $MAXSESSIONS )
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do
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netperf $TESTPROTO -H $TESTHOST -t TCP_STREAM -l $TESTDUR -v 0 -P 0 $PASSPHRASEOPTION >> $ULFILE 2>> $ERRFILE&
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# echo "Starting upload #$i $!"
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done
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# Start $MAXSESSIONS download datastreams from netperf server to the client
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for i in $( seq $MAXSESSIONS )
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do
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netperf $TESTPROTO -H $TESTHOST -t TCP_MAERTS -l $TESTDUR -v 0 -P 0 $PASSPHRASEOPTION >> $DLFILE 2>> $ERRFILE&
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# echo "Starting download #$i $!"
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done
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# Wait until each of the background netperf processes completes
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# echo "Process is $$"
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# echo `pgrep -P $$ netperf `
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for i in `pgrep -P $$ netperf` # get a list of PIDs for child processes named 'netperf'
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do
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# echo "Waiting for $i"
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wait $i
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done
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# Check the length of the error file. If it's > 0, then there were errors
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file_size=$(wc -c < "$ERRFILE")
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if [ $file_size -gt 0 ]; then
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clean_up # stop the machinery
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no_passphrase # print the error and exit
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fi
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# # Stop the pings after the netperf's are all done
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# kill -9 $ping_pid
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# wait $ping_pid 2>/dev/null
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# sum up all the values (one line per netperf test) from $DLFILE and $ULFILE
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# then summarize the ping stat's
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echo ""
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echo " Download: " `awk '{s+=$1} END {print s}' $DLFILE` Mbps
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echo " Upload: " `awk '{s+=$1} END {print s}' $ULFILE` Mbps
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summarize_pings $PINGFILE
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clean_up
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