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Diffstat (limited to 'contrib/measure-net-speed.bash')
-rwxr-xr-x | contrib/measure-net-speed.bash | 75 |
1 files changed, 0 insertions, 75 deletions
diff --git a/contrib/measure-net-speed.bash b/contrib/measure-net-speed.bash deleted file mode 100755 index cef4004..0000000 --- a/contrib/measure-net-speed.bash +++ /dev/null @@ -1,75 +0,0 @@ -#!/bin/bash -# Public Domain -# (someone claimed the next lines would be useful for… -# people. So here goes: © 2012 Stefan Breunig -# stefan+measure-net-speed@mathphys.fsk.uni-heidelberg.de) - - -# path to store the old results in -path="/dev/shm/measure-net-speed" - -# grabbing data for each adapter. -# You can find the paths to your adapters using -# find /sys/devices -name statistics -# If you have more (or less) than two adapters, simply adjust the script here -# and in the next block. -eth0="/sys/devices/pci0000:00/0000:00:19.0/net/eth0/statistics" -wlan0="/sys/devices/pci0000:00/0000:00:1c.1/0000:03:00.0/net/wlan0/statistics" -read eth0_rx < "${eth0}/rx_bytes" -read eth0_tx < "${eth0}/tx_bytes" -read wlan0_rx < "${wlan0}/rx_bytes" -read wlan0_tx < "${wlan0}/tx_bytes" - -# get time and sum of rx/tx for combined display -time=$(date +%s) -rx=$(( $eth0_rx + $wlan0_rx )) -tx=$(( $eth0_tx + $wlan0_tx )) - -# write current data if file does not exist. Do not exit, this will cause -# problems if this file is sourced instead of executed as another process. -if ! [[ -f "${path}" ]]; then - echo "${time} ${rx} ${tx}" > "${path}" - chmod 0666 "${path}" -fi - -# read previous state and update data storage -read old < "${path}" -echo "${time} ${rx} ${tx}" > "${path}" - -# parse old data and calc time passed -old=(${old//;/ }) -time_diff=$(( $time - ${old[0]} )) - -# sanity check: has a positive amount of time passed -if [[ "${time_diff}" -gt 0 ]]; then - # calc bytes transferred, and their rate in byte/s - rx_diff=$(( $rx - ${old[1]} )) - tx_diff=$(( $tx - ${old[2]} )) - rx_rate=$(( $rx_diff / $time_diff )) - tx_rate=$(( $tx_diff / $time_diff )) - - # shift by 10 bytes to get KiB/s. If the value is larger than - # 1024^2 = 1048576, then display MiB/s instead (simply cut off - # the last two digits of KiB/s). Since the values only give an - # rough estimate anyway, this improper rounding is negligible. - - # incoming - rx_kib=$(( $rx_rate >> 10 )) - if [[ "$rx_rate" -gt 1048576 ]]; then - echo -n "${rx_kib:0:-3}.${rx_kib: -3:-2} M↓" - else - echo -n "${rx_kib} K↓" - fi - - echo -n " " - - # outgoing - tx_kib=$(( $tx_rate >> 10 )) - if [[ "$tx_rate" -gt 1048576 ]]; then - echo -n "${tx_kib:0:-3}.${tx_kib: -3:-2} M↑" - else - echo -n "${tx_kib} K↑" - fi -else - echo -n " ? " -fi
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