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Update README.md;
Improved `--idle` option of betterspeedtest.sh.
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Rich Brown
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3 changed files with 23 additions and 38 deletions
54
README.md
54
README.md
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@ -28,7 +28,7 @@ opkg install git
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cd /usr/lib
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git clone git://github.com/richb-hanover/OpenWrtScripts.git
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```
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---
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## [getstats.sh](https://github.com/richb-hanover/OpenWrtScripts/blob/master/getstats.sh)
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The `getstats.sh` script helps diagnose problems with OpenWrt.
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@ -46,7 +46,6 @@ Read the top of the [getstats.sh](./getstats.sh) file for a simple procedure for
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**Sample output file:** See a sample output file - [openwrtstats.txt](./sample_output/openwrtstats.txt)
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---
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## [opkgscript.sh](https://github.com/richb-hanover/OpenWrtScripts/blob/master/opkgscript.sh)
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The `opkgscript.sh` script helps to restore the current set of packages after a sysupgrade
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@ -64,7 +63,6 @@ Cloned from Malte Forkel's [original script.](https://forum.openwrt.org/viewtopi
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`sh opkgscript.sh help` _display full help information for the script_
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---
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## [config-openwrt.sh](https://github.com/richb-hanover/OpenWrtScripts/blob/master/config-openwrt.sh)
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The `config-openwrt.sh` script updates the factory settings of OpenWrt to a known-good configuration.
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@ -109,7 +107,6 @@ may reset the wireless network.
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**Note:** If you use a secondary OpenWrt router, you can create another copy of this script, and use it to set different configuration parameters (perhaps different subnets, radio channels, SSIDs, enable mDNS, etc).
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---
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## [betterspeedtest.sh](https://github.com/richb-hanover/OpenWrtScripts/blob/master/betterspeedtest.sh)
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The `betterspeedtest.sh` script emulates the web-based test performed by speedtest.net, but does it one better. While script performs a download and an upload to a server on the Internet, it simultaneously measures latency of pings to see whether the file transfers affect the responsiveness of your network.
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@ -135,6 +132,13 @@ The output shows separate (one-way) download and upload speed, along with a summ
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The Idle test uses the same process to measure latency of the line, but without any additional traffic from this script. It runs for the specified --time.
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_Note:_ If the script displays the latency values as all-zeros on OpenWrt,
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then it's likely that the device has received (and is trying to use)
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an IPv6 address for the ping host.
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This will fail if you don't have IPv6 service from your ISP.
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To solve this, add `-p 1.1.1.1` or `-p 8.8.8.8` to the command to force an IPv4 host.
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### Sample Results
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On the left is a test run without SQM. Note that the latency gets huge (greater than 5 seconds), meaning that network performance would be terrible for anyone else using the network.
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On the right is a test using SQM: the latency goes up a little (less than 23 msec under load), and network performance remains good.
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@ -164,35 +168,6 @@ On the right is a test using SQM: the latency goes up a little (less than 23 mse
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90pct: 5163.901 90pct: 56.061
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Max: 5334.262 Max: 69.333
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---
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## [idlelatency.sh](https://github.com/richb-hanover/OpenWrtScripts/blob/master/idlelatency.sh)
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The `idlelatency.sh` script summarizes ping times measured over a specified time interval. To invoke the script:
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sh idlelatency.sh [ -4 | -6 ] [ -t duration ] [ -p host-to-ping ]
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Options, if present are:
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* -4 | -6: Enable ipv4 or ipv6 testing (default - ipv4)
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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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The output of the script looks like this:
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```
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root@openwrt: sh idlelatency.sh
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2020-05-02 12:10:53 Testing idle line while pinging gstatic.com (60 seconds)
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............................................................
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Latency: (in msec, 60 pings, 0.00% packet loss)
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Min: 20.438
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10pct: 22.633
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Median: 36.907
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Avg: 35.143
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90pct: 45.994
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Max: 50.377
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```
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---
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## [netperfrunner.sh](https://github.com/richb-hanover/OpenWrtScripts/blob/master/netperfrunner.sh)
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The `netperfrunner.sh` script runs several netperf commands simultaneously.
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@ -210,8 +185,11 @@ To invoke the script:
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Options, if present, are:
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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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Alternate servers are netperf-east (East Coast US),
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netperf-west (California),
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netperf-eu (Denmark), or
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flent-fremont (also California)
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* -4 | -6: Enable ipv4 or ipv6 testing (default - ipv4)
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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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@ -234,14 +212,16 @@ The output of the script looks like this:
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**Note:** The download and upload speeds reported may be considerably lower than your line's rated speed. This is not a bug, nor is it a problem with your internet connection. That's because the acknowledge messages sent back to the sender consume a significant fraction of the link's capacity (as much as 25%).
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---
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## [networkhammer.sh](https://github.com/richb-hanover/OpenWrtScripts/blob/master/networkhammer.sh)
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The `networkhammer.sh` script continually invokes the netperfrunner script to provide a heavy load. It runs forever - Ctl-C will interrupt it.
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## [idlelatency.sh](https://github.com/richb-hanover/OpenWrtScripts/blob/master/idlelatency.sh)
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_This script is no longer maintained.
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Use the `--idle` option of the `betterspeedtest.sh` script._
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---
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## [tunnelbroker.sh](https://github.com/richb-hanover/OpenWrtScripts/blob/master/tunnelbroker.sh)
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The `tunnelbroker.sh` script configures OpenWrt to create an IPv6 tunnel via Hurricane Electric.
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@ -101,16 +101,18 @@ clean_up() {
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kill_pings
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kill_dots
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rm "$PINGFILE"
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rm "$SPEEDFILE"
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}
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# Stop the current pings and dots, and exit
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# ping command catches (and handles) first Ctrl-C, so you have to hit it again...
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catch_interrupt() {
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printf "\nStopped"
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kill_pings
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kill_dots
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summarize_pings "$PINGFILE"
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rm "$PINGFILE"
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rm "$SPEEDFILE"
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exit 1
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}
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@ -263,6 +265,7 @@ trap catch_interrupt HUP INT TERM
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if $IDLETEST
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then
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echo "$DATE Testing idle line while pinging $PINGHOST ($TESTDUR seconds)"
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SPEEDFILE=$(mktemp /tmp/netperfUL.XXXXXX) || exit 1
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start_pings
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sleep "$TESTDUR"
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summarize_pings "$PINGFILE"
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@ -170,6 +170,8 @@ DATE=`date "+%Y-%m-%d %H:%M:%S"`
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# Catch a Ctl-C and stop the pinging and the print_dots
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trap kill_pings_and_dots_and_exit HUP INT TERM
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echo "THIS SCRIPT IS NO LONGER MAINTAINED."
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echo "Use the --idle option with the betterspeedtest.sh script"
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echo "$DATE Testing idle line while pinging $PINGHOST ($TESTDUR seconds)"
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start_pings
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sleep $TESTDUR
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