add scripts for running a throughput test between two machines

Signed-off-by: Erik Boasson <eb@ilities.com>

performance/throughput-test

@@ -0,0 +1,90 @@
+#!/bin/bash
+
+if [ $# -ne 1 ] ; then
+    echo >&2 <<EOF
+usage: $0 user@remote
+
+It assumes various things:
+- ssh user@remote succeeds without a password
+- network device to use is em2 (otherwise, change the config)
+- it assumes it is run from the build directory (actually, it verifies this)
+- it assumes ThroughputPublisher can be found in exactly the same place on the remote
+- probably some other things as well ... use with care.
+EOF
+    exit 1
+fi
+remote=$1
+dir=`dirname $0`
+ethload=$dir/ethload
+
+cfg=cdds-simple.xml
+cat >$cfg <<EOF
+<CycloneDDS>
+  <Domain>
+    <Id>17</Id>
+  </Domain>
+  <DDSI2E>
+    <General>
+      <NetworkInterfaceAddress>em2</NetworkInterfaceAddress>
+    </General>
+    <Internal>
+      <Watermarks>
+        <WhcHigh>500kB</WhcHigh>
+      </Watermarks>
+      <SynchronousDeliveryPriorityThreshold>${ASYNC:-0}</SynchronousDeliveryPriorityThreshold>
+    </Internal>
+  </DDSI2E>
+</CycloneDDS>
+EOF
+
+if [ ! -x bin/ThroughputPublisher -o ! -x bin/ThroughputSubscriber -o ! -x $ethload ] ; then
+    echo "some check for existence of a file failed on the local machine" >&2
+    exit 1
+fi
+
+mkdir throughput-result || { echo "failed to create throughput-result directory" >&2 ; exit 1 ; }
+
+export CYCLONEDDS_URI=file://$PWD/$cfg
+scp $cfg $remote:$PWD || { echo "failed to copy $cfg to $remote:$PWD" >&2 ; exit 1 ; }
+
+for async in 0 1 ; do
+    for mode in -1 0 1 ; do
+        echo "======== ASYNC $async MODE $mode ========="
+        cat > run-publisher.tmp <<EOF
+export CYCLONEDDS_URI=$CYCLONEDDS_URI
+export ASYNC=$async
+cd $PWD
+rm -f pub-top.log
+for size in 0 16 32 64 128 256 ; do
+  echo "size \$size"
+  bin/ThroughputPublisher \$size > pub.log & ppid=\$!
+  top -b -d1 -p \$ppid >> pub-top.log & tpid=\$!
+  sleep 20
+  kill \$tpid
+  kill -2 \$ppid
+  wait \$ppid
+  sleep 5
+done
+wait
+EOF
+        scp run-publisher.tmp $remote:$PWD || { echo "failed to copy $cfg to $remote:$PWD" >&2 ; exit 2 ; }
+
+        export ASYNC=$async
+
+        outdir=throughput-result/data-async$async-mode$mode
+        mkdir $outdir
+
+        rm -f sub-top.log
+        $ethload em2 1000 > $outdir/sub-ethload.log & lpid=$!
+        bin/ThroughputSubscriber 0 $mode > $outdir/sub.log & spid=$!
+        top -b -d1 -p $spid >> $outdir/sub-top.log & tpid=$!
+        tail -f $outdir/sub.log & xpid=$!
+        ssh $remote ". $PWD/run-publisher.tmp"
+        kill $tpid
+        kill -2 $spid
+        sleep 1
+        kill $lpid $xpid
+        wait
+        scp $remote:$PWD/{pub-top.log,pub.log} $outdir
+    done
+done