Solaris Live Network Bandwidth Monitoring
August 5th, 2014
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When doing performance analysis the current network throughput is often interesting. The following nice script display that – even without any root permissions.
#!/bin/sh
# usage: netvolmon DEV [INTERVAL]
DEV=$1
IVAL=${2:-5}
getrxtx() {
kstat -p "*:*:$1:*bytes64" |
awk '{print $2}'
}
rxtx=`getrxtx $DEV`
while sleep $IVAL; do
nrxtx=`getrxtx $DEV`
(echo $IVAL $rxtx $nrxtx) |
awk 'BEGIN {
msg = "%6.2f MB/s RX %6.2f MB/s TX\n"}
{rxd = ($4 - $2) / (1024*1024*$1);
txd = ($5 - $3) / (1024*1024*$1);
printf msg, rxd, txd}'
rxtx="$nrxtx"
done
The script is taken from here: http://utcc.utoronto.ca/~cks/space/blog/solaris/SolarisNetworkBandwidth
It produces the following output which is sufficient to get a quick overview about the current network traffic:
bash-3.2$ /export/home/oracle/net.sh igb0 5 0.59 MB/s RX 20.54 MB/s TX 1.17 MB/s RX 40.81 MB/s TX 1.71 MB/s RX 59.72 MB/s TX
Categories: Oracle in general