Console tool to test internet bandwidth

bandwidthconsoletestingUtilities

I'm looking for a tool that will test my internet connection bandwidth and create an simple report like speedtest does.

Do you know some program/tool that do this? Something with CentOS packages would be nice.

Best Answer

ttcp is a simple, possibly too simple, speed test utility.

pchar is another one people cite a lot, I've had bad luck with it, personally.

Here's how I'd use ttcp. You need two machines, each with ttcp (http://playground.sun.com/pub/tcp-impl/ttcp/ttcp.c) compiled on them.

HostA % ./ttcp -r -s -p 9401 
...

HostB % ./ttcp -s -p 9401 < /boot/vmlinuz

Once you've figured out how to get it to run, try different length files to see how speed varies. Use UDP (-u flag on both reader and sender command line) for even more fun!

Related Solutions

Monitoring – Tool to Monitor Bandwidth Usage of a Single Process

something to get you started (just in case you want to write it yourself):

#!/bin/bash
#
# usage: bwmon PID

IN=0; OUT=0; TIME=0

get_traffic() {
    t=`awk '/eth0:/ { printf("%s,%d,%d\n",strftime("%s"),$2,$10); }' < /proc/$1/net/dev`
    IN=${t#*,}; IN=${IN%,*}
    OUT=${t##*,};
    TIME=${t%%,*};
}

get_traffic $1
while true
do
    _IN=$IN; _OUT=$OUT; _TIME=$TIME
    get_traffic $1
    echo "$TIME,$(( $TIME - $_TIME )),$IN,$(( $IN - $_IN )),$OUT,$(( $OUT - $_OUT))"
    sleep 1
done

comments:

checks only eth0
checks every 1 second
works only under linux, but other unixes work similar (procfs or whatever)
output could be stored into a sqlite.db with stat --printf="%N\n" /proc/PID/exe | cut -d ' ' -f 3

Python – Measuring Python script bandwidth usage

If you are looking for a network monitor that runs as an external process and can provide per-connection statistics on the number of transferred bytes, then IPTraf can do that.

Take a look at the example screenshots, especially the TCP/UDP statistical breakdown.

Best Answer

Related Solutions

Monitoring – Tool to Monitor Bandwidth Usage of a Single Process

Python – Measuring Python script bandwidth usage

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