+
+if [ ! -z "$TEST_TAG" ]; then
+# run specific performance tests by tag if variable is set
+ pybot -L TRACE \
+ -v TOPOLOGY_PATH:${WORKING_TOPOLOGY} \
+ -i $TEST_TAG tests/
+else
+# run full performance test suite
+ pybot -L TRACE \
+ -v TOPOLOGY_PATH:${WORKING_TOPOLOGY} \
+ -s performance tests/
+fi