Driver to client/server kind of works
diff --git a/test/cpp/qps/single_run_localhost.sh b/test/cpp/qps/single_run_localhost.sh
index ef3e343..317202a 100755
--- a/test/cpp/qps/single_run_localhost.sh
+++ b/test/cpp/qps/single_run_localhost.sh
@@ -6,13 +6,17 @@
 
 cd $(dirname $0)/../../..
 
+killall qps_server qps_client || true
+
+config=opt
+
 NUMCPUS=`python2.7 -c 'import multiprocessing; print multiprocessing.cpu_count()'`
 
-make CONFIG=opt qps_client qps_server qps_driver -j$NUMCPUS
+make CONFIG=$config qps_client qps_server qps_driver -j$NUMCPUS
 
-bins/opt/qps_server -driver_port 10000 -port 10002 &
+bins/$config/qps_server -driver_port 10000 -port 10002 &
 SERVER_PID=$!
-bins/opt/qps_client -driver_port 10001 &
+bins/$config/qps_client -driver_port 10001 &
 CLIENT_PID=$!
 
 # wait for startup
@@ -21,7 +25,7 @@
 export QPS_SERVERS=localhost:10000
 export QPS_CLIENTS=localhost:10001
 
-bins/opt/qps_driver $*
+bins/$config/qps_driver $*
 
 kill -2 $CLIENT_PID
 kill -2 $SERVER_PID