Jon Ormond
GitHub
Коммит
c38a5470a5
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#!/bin/sh
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# Get-LinkPerformance for Linux, version 1.0
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# 1. Define Functions
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# 2. Evaluate and Set input parameters
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# 3. Initialize Variables
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# 4. Clear old run files
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# 5. Validate Ping connectivity (two ping)
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# 6. Validate iPerf3 connectivity (two ping)
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# 7. Start Ping Job
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# 8. iPerf Test Loop
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# 9. Parse each job file for data
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# 9.1 iPerf file loop
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# 9.2.1 iPerf line loop
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# 10. Output results
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# 1. Define Functions
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function getIndex {
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# $1 = Array count being analyzed
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# $2 = The percentile being sought
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if [ $(( $1 * $2 % 100 )) -eq 0 ]
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then
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# Whole number
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k=$(( $1 * $2 / 100 ))
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else
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# Fraction
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k=$(( $1 * $2 / 100 + 1 ))
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fi
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if [ $k -eq 0 ]
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then
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k=1
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elif [ $k -gt $1 ]
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then
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k=$1
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fi
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echo $k
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}
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function valid_ip()
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{
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# From https://www.linuxjournal.com/content/validating-ip-address-bash-script
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local ip=$1
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local stat=1
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if [[ $ip =~ ^[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}$ ]]; then
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OIFS=$IFS
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IFS='.'
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ip=($ip)
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IFS=$OIFS
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[[ ${ip[0]} -le 255 && ${ip[1]} -le 255 \
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&& ${ip[2]} -le 255 && ${ip[3]} -le 255 ]]
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stat=$?
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fi
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return $stat
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}
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# 2. Evaluate and Set input parameters
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printf "\n"
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gotError="Nope"
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msgError=""
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if valid_ip $1
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then
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RemoteHost=$1
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else
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msgError+="Invalid or missing remote host IP address.\n\n"
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gotError="Yep"
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fi
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if [[ $2 =~ ^[0-9]+$ ]]
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then
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if (( $2 > 3 && $2 < 86401 ))
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then
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TestSeconds=$2
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else
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msgError+="Invalid or missing TestSeconds.\n"
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msgError+="Value must be between 10 and 86,400 (24 hours).\n\n"
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gotError="Yep"
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fi
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else
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msgError+="Invalid or missing TestSeconds.\n"
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msgError+="Value must be an integer between 10 and 86,400 (24 hours).\n\n"
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gotError="Yep"
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fi
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if [[ "$gotError" == "Yep" ]]
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then
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printf "glp: missing operand\n"
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printf "usage:"
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tput bold
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printf " glp <Remote IPv4> <TestSeconds>\n\n"
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tput sgr0
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printf "$msgError"
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exit
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fi
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# 3. Initialize Variables
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WebSource="https://github.com/Azure/NetworkMonitoring"
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strPingTest="PingTest.log"
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strPerfTest="PerfTest.log"
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strTestFile[1]="Ping.log"
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strTestFile[2]="P01perf.log"
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strTestFile[3]="P06perf.log"
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strTestFile[4]="P16perf.log"
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strTestFile[5]="P17perf.log"
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strTestFile[6]="P32perf.log"
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logDir="data"
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OutputArray=()
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PingArray=()
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PingLoss="Error"
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PingSent="Error"
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PingP50="Error"
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PingP90="Error"
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PingP95="Error"
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PingMin="Error"
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PingMax="Error"
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PingAvg="Error"
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TestName=()
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TestName[1]="Stage 1 of 6: Latency Test..."
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TestName[2]="Stage 2 of 6: Single Thread Test..."
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TestName[3]="Stage 3 of 6: 6 Thread Test..."
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TestName[4]="Stage 4 of 6: 16 Thread Test..."
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TestName[5]="Stage 5 of 6: 16 Thread Test with 1Mb window..."
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TestName[6]="Stage 6 of 6: 32 Thread Test..."
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Threads=()
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Threads[1]=0
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Threads[2]=1
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Threads[3]=6
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Threads[4]=16
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Threads[5]=16
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Threads[6]=32
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TPut=()
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# 4. Clear old run files
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if [ -d "$logDir" ]
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then
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rm -f ./$logDir/*
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else
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mkdir $logDir
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fi
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# 5. Validate Ping connectivity (two ping)
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ping $RemoteHost -c 2 -W 4 > ./$logDir/$strPingTest
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while IFS= read -r line
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do
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if [[ $line == *100??packet?loss* ]]
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then
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tput bold
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printf "Unable to ping remote machine.\n\n"
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tput sgr0
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printf "Things to check:\n"
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printf " - Ensure the remote server is listening and reachable from this machine\n"
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printf " - Check host and network firewalls to ensure ICMPv4 is allowed\n\n"
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printf "See $WebSource for more information.\n\n"
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exit
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fi
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done < $logDir/$strPingTest
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# 6. Validate iPerf3 connectivity (two ping)
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iperf3 -c $RemoteHost -t 2 -i 0 -P 1 -b 1k --logfile ./$logDir/$strPerfTest
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while IFS= read -r line
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do
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if [[ $line == *error?-?unable?to?connect* ]]
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then
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tput bold
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printf "Unable to start iPerf session.\n\n"
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tput sgr0
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printf "Things to check:\n"
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printf " - Ensure iPerf is running in server mode (iperf3 -s) on the remote host at $RemoteHost\n"
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printf " - Ensure remote iPerf server is listening on the default port 5201\n"
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printf " - Check host and network firewalls to ensure this port is open on both hosts and any network devices between them\n"
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printf " - Ensure iPerf files are installed\n"
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printf " - Ensure remote iPerf version is compatible with local version\n\n"
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printf "See $WebSource for more information.\n\n"
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exit
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fi
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done < $logDir/$strPerfTest
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# 7. Start Ping Job
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printf "$(date '+%m/%d/%Y %H:%M:%S') - "
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tput setaf 6
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printf "${TestName[1]}\n"
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tput sgr0
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ping $RemoteHost -c $TestSeconds > ./$logDir/${strTestFile[1]}
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# 8. iPerf Test Loop
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for i in {2..6}
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do
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printf "$(date '+%m/%d/%Y %H:%M:%S') - "
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tput setaf 6
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printf "${TestName[$i]}\n"
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tput sgr0
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if [ $i -eq 5 ]
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then
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iperf3 -c $RemoteHost -t $TestSeconds -i 0 -P ${Threads[$i]} -w1M --logfile ./$logDir/${strTestFile[$i]}
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else
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iperf3 -c $RemoteHost -t $TestSeconds -i 0 -P ${Threads[$i]} --logfile ./$logDir/${strTestFile[$i]}
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fi
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done
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# 9. Parse each job file for data
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# 9.1 Ping file loop
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while IFS= read -r line
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do
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# Starting ping line loop
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if [[ $line == *ttl=* ]]
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then
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IFS='=' read -r -a array <<< "$line"
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PingArray+=(`echo "${array[3]}" | cut -d' ' -f 1`)
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elif [[ $line == *received* ]]
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then
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PingSent=`echo $line | cut -d' ' -f 1`
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PingLoss=`echo $line | cut -d',' -f 3 | cut -d' ' -f 2`
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elif [[ $line == *min?avg?max* ]]
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then
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PingMin=`echo $line | cut -d'/' -f 4 | cut -d' ' -f 3`
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PingMax=`echo $line | cut -d'/' -f 6`
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PingAvg=`echo $line | cut -d'/' -f 5`
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fi
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done < $logDir/${strTestFile[1]}
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# 9.2 Get percentile vaules
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# http://www.dummies.com/education/math/statistics/how-to-calculate-percentiles-in-statistics/
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IFS=$'\n' sortedPing=($(sort -n <<<"${PingArray[*]}"))
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PingArrayCount=${#sortedPing[@]}
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PingP50=${sortedPing[`getIndex $PingArrayCount 50` - 1]}
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PingP90=${sortedPing[`getIndex $PingArrayCount 90` - 1]}
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PingP95=${sortedPing[`getIndex $PingArrayCount 95` - 1]}
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# 9.3 iPerf file loop
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for i in {2..6}
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do
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# 9.3.1 iPerf line loop
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WholeLine=""
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while IFS= read -r line
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do
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if [ $i -eq 2 ]
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then
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if [[ $line == *receiver* ]]
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then
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WholeLine=$line
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fi
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else
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if [[ $line == *SUM* && $line == *receiver* ]]
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then
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WholeLine=$line
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fi
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fi
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done < $logDir/${strTestFile[$i]}
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PaddedLine=`echo "$WholeLine" | cut -c38-55`
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ValuePart=`echo "$PaddedLine" | cut -d' ' -f 2`
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ScalePart=`echo "$PaddedLine" | cut -d' ' -f 3`
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if [[ "$ScalePart" == "Gbits/sec" ]]
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then
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ScaleConv="Gbps"
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elif [[ "$ScalePart" == "Mbits/sec" ]]
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then
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ScaleConv="Mbps"
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else
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ScaleConv="$ScalePart"
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fi
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TPut[$i]="$ValuePart $ScaleConv"
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done
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tput setaf 6
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printf 'Test complete!\n'
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tput sgr0
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printf "\n"
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# 10. Output results
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format1="%-30s %4s %-17s %-17s\n"
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format2="%-19s %9s\n"
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temp1="$PingMin/$PingAvg/$PingMax"
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temp2="$PingP50/$PingP90/$PingP95"
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#format 1 "| %30s | |4s| | 17s | | 17s |"
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#format 2 "| %19s | | %9s |"
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#printf " 1 2 3 4 5 6 7 8\n"
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#printf "12345678901234567890123456789012345678901234567890123456789012345678901234567890\n"
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printf "\n"
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printf "Test Bandwidth Loss min/avg/max P50/P90/P95\n"
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printf -- "---- --------- ---- ----------- -----------\n"
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printf "$format1" "Latency" "$PingLoss" "$temp1" "$temp2"
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printf "$format2" "1 Session" "${TPut[2]}"
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printf "$format2" "6 Sessions" "${TPut[3]}"
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printf "$format2" "16 Sessions" "${TPut[4]}"
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printf "$format2" "16 with 1Mb window" "${TPut[5]}"
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printf "$format2" "32 Sessions" "${TPut[6]}"
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printf "\n"
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