using MS_TO_NS function

analytics/operators/persystsql/PerSystSqlOperator.cpp

@@ -100,7 +100,7 @@ void PerSystSqlOperator::printConfig(LOG_LEVEL ll) {
 	LOG_VAR(ll) << "PerSystSQL Operator " << _name;
 	LOG_VAR(ll) << "====================================";
 	LOG_VAR(ll) << "backend=" << _backend;
-	LOG_VAR(ll) << "go_back_ms=" << _go_back_ns/1000000;
+	LOG_VAR(ll) << "go_back_ms=" << _go_back_ns/1e6;
 	LOG_VAR(ll) << "scaling_factor=" << _scaling_factor;
 	LOG_VAR(ll) << "batch_domain=" << _batch_domain;
 	if(_backend == MARIADB){

analytics/operators/smucngperf/SMUCNGPerfConfigurator.cpp

@@ -203,7 +203,7 @@ void SMUCNGPerfConfigurator::operatorAttributes(SMUCNGPerfOperator& op, CFG_VAL
     		}
     	} else if(boost::iequals(val.first, "go_back_ms")) {
     		try {
-    			auto go_back_ms = std::stod(val.second.data());
+    			auto go_back_ms = std::stoull(val.second.data());
     			op.setGoBackMs(go_back_ms);
     		} catch (const std::exception &e) {
     			LOG(error) << "  Error parsing go_back_ms \"" << val.second.data() << "\": " << e.what();

analytics/operators/smucngperf/SMUCNGPerfOperator.cpp

@@ -228,7 +228,7 @@ void SMUCNGPerfOperator::computeMetricRatio(std::vector<SMUCNGPtr>& inputs, SMUC
 void SMUCNGPerfOperator::computeProfileMetric(std::vector<SMUCNGPtr>& inputs, SMUCNGPtr &outSensor, const uint64_t timestamp){
 	auto queryMetrics = _profileMetricToMetricIds[outSensor->getMetric()]; //should be here since this was queried in the compute() member function
 	for(std::size_t i = 0; i < queryMetrics.size(); ++i){
-		if(!_queryEngine.querySensor(inputs[_metricToPosition[queryMetrics[i]]]->getName(), timestamp - (_interval * 1e6), timestamp, _buffers[i], false)){
+		if(!_queryEngine.querySensor(inputs[_metricToPosition[queryMetrics[i]]]->getName(), timestamp - MS_TO_NS(_interval), timestamp, _buffers[i], false)){
 			LOG(debug) << "Could not find data for metric id " << queryMetrics[i];
 			return;
 		}

analytics/operators/smucngperf/SMUCNGPerfOperator.h

@@ -50,7 +50,7 @@ public:
     	_measuring_interval_s = measurement_interval_s;
     }
     void setGoBackMs(int go_back_ms){
-    	_go_back_ns = go_back_ms * 1e6;
+    	_go_back_ns = MS_TO_NS(go_back_ms);
     }
 
 protected:
@@ -63,8 +63,9 @@ protected:
     vector<vector<reading_t>> _buffers;
     const unsigned int MAX_FREQ_MHZ = 2700;
     const unsigned int MIN_FREQ_MHZ = 1200;
-    double _go_back_ns;
-    double _measuring_interval_s;
+    uint64_t _go_back_ns;
+    double _measuring_interval_s; //<! preferred as double since we need decimal places 
+                                  //   and use it in divisionis (metric/s)
 
     virtual void compute(U_Ptr unit) override;