Add more checks to ddsperf and run on Travis

This adds options to check for "unreasonable" RSS growth, receipt of a
minimum number of samples and having run a minimum number of roundtrips.

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

src/tools/ddsperf/sanity.bash

@@ -0,0 +1,23 @@
+exitcode=0
+# RSS/samples/roundtrip numbers are based on experimentation on Travis
+bin/ddsperf -L -D10 -n10 -Qminmatch:2 -Qrss:10% -Qrss:0.5 -Qsamples:300000 -Qroundtrips:3000 sub ping & ddsperf_pids=$!
+bin/ddsperf -L -D10 -n10 -Qminmatch:2 -Qrss:10% -Qrss:0.5 pub & ddsperf_pids="$ddsperf_pids $!"
+sleep 11
+for pid in $ddsperf_pids ; do
+    if kill -0 $pid 2>/dev/null ; then
+        echo "killing process $pid"
+        kill -9 $pid
+        exitcode=2
+    fi
+    wait $pid
+    x=$?
+    if [[ $x -gt $exitcode ]] ; then
+        exitcode=$x
+    fi
+done
+if [[ $exitcode -gt 0 ]] ; then
+    echo "** FAILED **"
+else
+    echo "** OK **"
+fi
+exit $exitcode