DPL GUI: better tick labels for X axis

ktf · ktf · commit 2fe57ff7964e · 2023-05-17T19:58:39.000+02:00
diff --git a/Framework/Core/include/Framework/DriverInfo.h b/Framework/Core/include/Framework/DriverInfo.h
@@ -118,6 +118,8 @@ struct DriverInfo {
   std::vector<CallbacksPolicy> callbacksPolicies;
   /// The offset at which the process was started.
   uint64_t startTime;
+  /// The actual time in milliseconds from epoch at which the process was started.
+  uint64_t startTimeMsFromEpoch;
   /// The optional timeout after which the driver will request
   /// all the children to quit.
   double timeout;
diff --git a/Framework/Core/src/runDataProcessing.cxx b/Framework/Core/src/runDataProcessing.cxx
@@ -2815,6 +2815,9 @@ int doMain(int argc, char** argv, o2::framework::WorkflowSpec const& workflow,
   }
   driverInfo.minFailureLevel = varmap["min-failure-level"].as<LogParsingHelpers::LogLevel>();
   driverInfo.startTime = uv_hrtime();
+  driverInfo.startTimeMsFromEpoch = std::chrono::duration_cast<std::chrono::milliseconds>(
+                                      std::chrono::system_clock::now().time_since_epoch())
+                                      .count();
   driverInfo.timeout = varmap["timeout"].as<uint64_t>();
   driverInfo.deployHostname = varmap["hostname"].as<std::string>();
   driverInfo.resources = varmap["resources"].as<std::string>();
diff --git a/Framework/GUISupport/src/FrameworkGUIDebugger.cxx b/Framework/GUISupport/src/FrameworkGUIDebugger.cxx
@@ -341,10 +341,23 @@ void displaySparks(
   ImGui::EndTable();
 }
 
+int formatTimeSinceStart(double value, char* buff, int size, void* user_data)
+{
+  auto* startTime = (int64_t*)user_data;
+  if (value - *startTime < 0) {
+    buff[0] = '\0';
+    return 0;
+  }
+  int64_t seconds = (value - *startTime) / 1000;
+  int64_t minutes = seconds / 60;
+  return snprintf(buff, size, "%02lld:%02lld", minutes, seconds % 60);
+}
+
 void displayDeviceMetrics(const char* label,
                           size_t rangeBegin, size_t rangeEnd, size_t bins, MetricsDisplayStyle displayType,
                           std::vector<MetricDisplayState>& state,
-                          AllMetricsStore const& metricStore)
+                          AllMetricsStore const& metricStore,
+                          DriverInfo const& driverInfo)
 {
   std::vector<void*> metricsToDisplay;
   std::vector<const char*> deviceNames;
@@ -493,6 +506,7 @@ void displayDeviceMetrics(const char* label,
     case MetricsDisplayStyle::Histos:
       if (ImPlot::BeginPlot("##Some plot")) {
         ImPlot::SetupAxes("time", "value");
+        ImPlot::SetupAxisFormat(ImAxis_X1, formatTimeSinceStart, (void*)&driverInfo.startTimeMsFromEpoch);
         for (size_t pi = 0; pi < metricsToDisplay.size(); ++pi) {
           ImGui::PushID(pi);
           auto data = (const MultiplotData*)metricsToDisplay[pi];
@@ -510,6 +524,7 @@ void displayDeviceMetrics(const char* label,
       //ImPlot::FitNextPlotAxes(true, true, true, true);
       if (ImPlot::BeginPlot("##Some plot", {-1, -1}, axisFlags)) {
         ImPlot::SetupAxes("time", "value", xAxisFlags, yAxisFlags);
+        ImPlot::SetupAxisFormat(ImAxis_X1, formatTimeSinceStart, (void*)&driverInfo.startTimeMsFromEpoch);
         for (size_t pi = 0; pi < metricsToDisplay.size(); ++pi) {
           ImGui::PushID(pi);
           auto data = (const MultiplotData*)metricsToDisplay[pi];
@@ -891,7 +906,7 @@ void displayMetrics(gui::WorkspaceGUIState& state,
     case MetricsDisplayStyle::Lines: {
       displayDeviceMetrics("Metrics",
                            minTime, maxTime, 1024,
-                           currentStyle, metricDisplayState, metricsStore);
+                           currentStyle, metricDisplayState, metricsStore, driverInfo);
     } break;
     case MetricsDisplayStyle::Sparks: {
       displaySparks(state.startTime, visibleMetricsIndex, metricDisplayState, metricsStore);
