add benchmark script

bin/run-benchmark.sh

@@ -0,0 +1,37 @@
+#!/bin/sh
+
+set -x
+
+if [ $# -ne 2 ]; then
+    echo "$0 host ip"
+    echo "host and ip of the iperf server"
+fi
+
+host=$1; shift
+port=$1; shift
+
+flags="-p $port -O 10 -t 190"
+fbase="iperf-to-${host}"
+
+if echo $host | grep -q ':'; then
+    flags="$flags -6"
+    fbase="${fbase}-from-v6"
+else
+    flags="$flags -4"
+    fbase="${fbase}-from-v4"
+fi
+
+do_benchmark()
+{
+    full_flags="$@"
+    iperf3_flags=$(echo $flags | sed 's/ //g')
+    filename="${fbase}-${iperf3_flags}"
+
+    iperf3 $flags -P$p | tee "${filename}"
+
+}
+
+for p in 1 10 20 50; do
+    do_benchmark $flags -P$p
+    do_benchmark $flags -P$p -u -b0
+done