calculate actual period for metrics logging

lib/include/srslte/common/metrics_hub.h

@@ -10,6 +10,7 @@
 
 #include <vector>
 #include "srslte/common/threads.h"
+#include "srslte/srslte.h"
 
 namespace srslte {
 
@@ -24,7 +25,7 @@ template<typename metrics_t>
 class metrics_listener
 {
 public: 
-  virtual void set_metrics(metrics_t &m) = 0;
+  virtual void set_metrics(metrics_t &m, const uint32_t period_usec) = 0;
   virtual void stop() = 0;
 };
 
@@ -34,13 +35,12 @@ class metrics_hub : public periodic_thread
 public:
   metrics_hub()
     :m(NULL)
-    ,report_period_secs(1)
+    ,sleep_period_start()
   {}
   bool init(metrics_interface<metrics_t> *m_, float report_period_secs_=1.0) {
     m = m_;
-    report_period_secs = report_period_secs_;
     // Start with user-default priority
-    start_periodic(report_period_secs*1e6, -2);
+    start_periodic(report_period_secs_*1e6, -2);
     return true;
   }
   void stop() {
@@ -57,18 +57,24 @@ public:
   }
   
 private:
-  void run_period() {
+  void run_period(){
+    // get current time and check how long we slept
+    gettimeofday(&sleep_period_start[2], NULL);
+    get_time_interval(sleep_period_start);
+    uint32_t period = sleep_period_start[0].tv_sec*1e6 + sleep_period_start[0].tv_usec;
     if (m) {
       metrics_t metric = {};
       m->get_metrics(metric);
       for (uint32_t i=0;i<listeners.size();i++) {
-        listeners[i]->set_metrics(metric);
+        listeners[i]->set_metrics(metric, period);
       }
     }
+    // store start of sleep period
+    gettimeofday(&sleep_period_start[1], NULL);
   }
   metrics_interface<metrics_t> *m;
   std::vector<metrics_listener<metrics_t>*> listeners;
-  float report_period_secs;
+  struct timeval sleep_period_start[3];
 };
 
 } // namespace srslte

srsue/hdr/metrics_csv.h

@@ -49,8 +49,7 @@ public:
   metrics_csv(std::string filename);
   ~metrics_csv();
 
-  void set_periodicity(float metrics_report_period_sec);
-  void set_metrics(ue_metrics_t &m);
+  void set_metrics(ue_metrics_t &m, const uint32_t period_usec);
   void set_ue_handle(ue_metrics_interface *ue_);
   void stop();
 

srsue/hdr/metrics_stdout.h

@@ -48,7 +48,7 @@ public:
 
   void set_periodicity(float metrics_report_period_sec);
   void toggle_print(bool b);
-  void set_metrics(ue_metrics_t &m);
+  void set_metrics(ue_metrics_t &m, const uint32_t period_usec);
   void set_ue_handle(ue_metrics_interface *ue_);
   void stop() {};
 

srsue/src/main.cc

@@ -447,13 +447,11 @@ int main(int argc, char *argv[])
   metricshub.init(ue, args.expert.metrics_period_secs);
   metricshub.add_listener(&metrics_screen);
   metrics_screen.set_ue_handle(ue);
-  metrics_screen.set_periodicity(args.expert.metrics_period_secs);
 
   metrics_csv metrics_file(args.expert.metrics_csv_filename);
   if (args.expert.metrics_csv_enable) {
     metricshub.add_listener(&metrics_file);
     metrics_file.set_ue_handle(ue);
-    metrics_file.set_periodicity(args.expert.metrics_period_secs);
   }
 
   pthread_t input;

srsue/src/metrics_csv.cc

@@ -68,11 +68,7 @@ void metrics_csv::stop()
   }
 }
 
-void metrics_csv::set_periodicity(float metrics_report_period_sec) {
-  this->metrics_report_period = metrics_report_period_sec;
-}
-
-void metrics_csv::set_metrics(ue_metrics_t &metrics)
+void metrics_csv::set_metrics(ue_metrics_t &metrics, const uint32_t period_usec)
 {
   if (file.is_open() && ue != NULL) {
     if(n_reports == 0) {
@@ -85,7 +81,7 @@ void metrics_csv::set_metrics(ue_metrics_t &metrics)
     file << float_to_string(metrics.phy.dl.mcs, 2);
     file << float_to_string(metrics.phy.dl.sinr, 2);
     file << float_to_string(metrics.phy.dl.turbo_iters, 2);
-    file << float_to_string((float) metrics.mac.rx_brate/metrics_report_period, 2);
+    file << float_to_string((float) metrics.mac.rx_brate/period_usec*1e6, 2);
     if (metrics.mac.rx_pkts > 0) {
       file << float_to_string((float) 100*metrics.mac.rx_errors/metrics.mac.rx_pkts, 1);
     } else {
@@ -93,7 +89,7 @@ void metrics_csv::set_metrics(ue_metrics_t &metrics)
     }
     file << float_to_string(metrics.phy.ul.mcs, 2);
     file << float_to_string((float) metrics.mac.ul_buffer, 2);
-    file << float_to_string((float) metrics.mac.tx_brate/metrics_report_period, 2);
+    file << float_to_string((float) metrics.mac.tx_brate/period_usec*1e6, 2);
       if (metrics.mac.tx_pkts > 0) {
       file << float_to_string((float) 100*metrics.mac.tx_errors/metrics.mac.tx_pkts, 1);
     } else {

srsue/src/metrics_stdout.cc

@@ -50,7 +50,6 @@ char const * const prefixes[2][9] =
 metrics_stdout::metrics_stdout()
     :do_print(false)
     ,n_reports(10)
-    ,metrics_report_period(1.0)
     ,ue(NULL)
 {
 }
@@ -65,11 +64,7 @@ void metrics_stdout::toggle_print(bool b)
   do_print = b;
 }
 
-void metrics_stdout::set_periodicity(float metrics_report_period_sec) {
-  this->metrics_report_period = metrics_report_period_sec;
-}
-
-void metrics_stdout::set_metrics(ue_metrics_t &metrics)
+void metrics_stdout::set_metrics(ue_metrics_t &metrics, const uint32_t period_usec)
 {
   if(!do_print || ue == NULL)
     return;
@@ -92,7 +87,7 @@ void metrics_stdout::set_metrics(ue_metrics_t &metrics)
   cout << float_to_string(metrics.phy.dl.mcs, 2);
   cout << float_to_string(metrics.phy.dl.sinr, 2);
   cout << float_to_string(metrics.phy.dl.turbo_iters, 2);
-  cout << float_to_eng_string((float) metrics.mac.rx_brate/metrics_report_period, 2);
+  cout << float_to_eng_string((float) metrics.mac.rx_brate/period_usec*1e6, 2);
   if (metrics.mac.rx_pkts > 0) {
     cout << float_to_string((float) 100*metrics.mac.rx_errors/metrics.mac.rx_pkts, 1) << "%";
   } else {
@@ -100,7 +95,7 @@ void metrics_stdout::set_metrics(ue_metrics_t &metrics)
   }
   cout << float_to_string(metrics.phy.ul.mcs, 2);
   cout << float_to_eng_string((float) metrics.mac.ul_buffer, 2);
-  cout << float_to_eng_string((float) metrics.mac.tx_brate/metrics_report_period, 2);
+  cout << float_to_eng_string((float) metrics.mac.tx_brate/period_usec*1e6, 2);
   if (metrics.mac.tx_pkts > 0) {
     cout << float_to_string((float) 100*metrics.mac.tx_errors/metrics.mac.tx_pkts, 1) << "%";
   } else {