109 lines
2.5 KiB
Bash
Executable file
109 lines
2.5 KiB
Bash
Executable file
#!/bin/sh
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#
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# stream_range
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#
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# generate a whole lot of numbers from netperf to see the effects
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# of send size on thruput
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#
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#
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# usage : tcp_stream_range hostname [CPU]
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#
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if [ $# -gt 2 ]; then
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echo "try again, correctly -> tcp_stream_range hostname [CPU]"
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exit 1
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fi
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if [ $# -eq 0 ]; then
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echo "try again, correctly -> tcp_stream_range hostname [CPU]"
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exit 1
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fi
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# if there are two parms, parm one it the hostname and parm two will
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# be a CPU indicator. actually, anything as a second parm will cause
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# the CPU to be measured, but we will "advertise" it should be "CPU"
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if [ $# -eq 2 ]; then
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REM_HOST=$1
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LOC_CPU="-c"
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REM_CPU="-C"
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fi
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if [ $# -eq 1 ]; then
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REM_HOST=$1
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fi
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# at what port will netserver be waiting? If you decide to run
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# netserver at a differnet port than the default of 12865, then set
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# the value of PORT apropriately
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#PORT="-p some_other_portnum"
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PORT=""
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# where is netperf, and are there any "constant" options such as
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# the netserver port number
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#NETHOME=/usr/etc/net_perf
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NETHOME="."
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NETPERF=$NETHOME/netperf $PORT
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# How accurate we want the estimate of performance:
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# maximum and minimum test iterations (-i)
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# confidence level (99 or 95) and interval (percent)
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STATS_STUFF="-i 10,2 -I 99,3"
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#
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# some stuff for the arithmetic
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#
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# we start at start, and then multiply by MULT and add ADD. by changing
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# these numbers, we can double each time, or increase by a fixed
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# amount, or go up by 4x, whatever we like...
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#
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START=1
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END=65536
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MULT=4
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ADD=0
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# If we are measuring CPU utilization, then we can save beaucoup
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# time by saving the results of the CPU calibration and passing
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# them in during the real tests. So, we execute the new CPU "tests"
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# of netperf and put the values into shell vars.
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case $LOC_CPU in
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\-c) LOC_RATE=`$NETPERF -t LOC_CPU`;;
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*) LOC_RATE=""
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esac
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case $REM_CPU in
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\-C) REM_RATE=`$NETPERF -t REM_CPU -H $REM_HOST`;;
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*) REM_RATE=""
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esac
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TIME="60"
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#
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# the maximum socket buffer size is system dependent. for the
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# "cannonical" tests we use 32KB, but this can be altered
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#
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SOCKET_SIZE="-s 32768 -S 32768"
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MESSAGE=$START
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while [ $MESSAGE -le $END ]; do
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echo
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echo ------------------------------------
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echo Testing with the following command line:
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echo $NETPERF -l $TIME -H $REM_HOST -t TCP_STREAM\
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$LOC_CPU $LOC_RATE $REM_CPU $REM_RATE $STATS_STUFF --\
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-m $MESSAGE $SOCKET_SIZE
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echo
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$NETPERF -l $TIME -H $REM_HOST -t TCP_STREAM\
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$LOC_CPU $LOC_RATE $REM_CPU $REM_RATE $STATS_STUFF --\
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-m $MESSAGE $SOCKET_SIZE
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MESSAGE=`expr $MESSAGE + $ADD`
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MESSAGE=`expr $MESSAGE \* $MULT`
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done
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echo
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