Generate graphs of synchronization accuracy

[lttv.git] / lttv / lttv / sync / event_processing_lttng_standard.c

diff --git a/lttv/lttv/sync/event_processing_lttng_standard.c b/lttv/lttv/sync/event_processing_lttng_standard.c
index cc9ada288353797096f954d5ea3361baf7840224..733c4081489700810a07311be56fa3309ee302f9 100644 (file)
--- a/lttv/lttv/sync/event_processing_lttng_standard.c
+++ b/lttv/lttv/sync/event_processing_lttng_standard.c
@@ -47,6 +47,8 @@ static void destroyProcessingLTTVStandard(SyncState* const syncState);
 
 static void finalizeProcessingLTTVStandard(SyncState* const syncState);
 static void printProcessingStatsLTTVStandard(SyncState* const syncState);
+static void writeProcessingGraphVariablesLTTVStandard(SyncState* const
+       syncState, const unsigned int i);
 static void writeProcessingTraceTraceOptionsLTTVStandard(SyncState* const
        syncState, const unsigned int i, const unsigned int j);
 static void writeProcessingTraceTimeOptionsLTTVStandard(SyncState* const
@@ -65,6 +67,7 @@ static ProcessingModule processingModuleLTTVStandard = {
        .finalizeProcessing= &finalizeProcessingLTTVStandard,
        .printProcessingStats= &printProcessingStatsLTTVStandard,
        .graphFunctions= {
+               .writeVariables= &writeProcessingGraphVariablesLTTVStandard,
                .writeTraceTraceOptions= &writeProcessingTraceTraceOptionsLTTVStandard,
                .writeTraceTimeOptions= &writeProcessingTraceTimeOptionsLTTVStandard,
        },
@@ -674,6 +677,24 @@ static gboolean processEventLTTVStandard(void* hookData, void* callData)
 }
 
 
+/*
+ * Write the processing-specific variables in the gnuplot script.
+ *
+ * Args:
+ *   syncState:    container for synchronization data
+ *   i:            trace number
+ */
+static void writeProcessingGraphVariablesLTTVStandard(SyncState* const
+       syncState, const unsigned int i)
+{
+       ProcessingDataLTTVStandard* processingData= syncState->processingData;
+       ProcessingGraphsLTTVStandard* traceI= &processingData->graphs[i];
+
+       fprintf(syncState->graphsStream, "clock_freq_%u= %.3f\n", i, (double)
+               traceI->startFreq / traceI->freqScale);
+}
+
+
 /*
  * Write the processing-specific options in the gnuplot script.
  *
@@ -697,15 +718,14 @@ static void writeProcessingTraceTraceOptionsLTTVStandard(SyncState* const
         "set key inside right bottom\n"
         "set xlabel \"Clock %1$u\"\n"
         "set xtics nomirror\n"
-        "set ylabel \"Clock %3$u\"\n"
+        "set ylabel \"Clock %2$u\"\n"
         "set ytics nomirror\n"
                "set x2label \"Clock %1$d (s)\"\n"
-               "set x2range [GPVAL_X_MIN / %2$.1f : GPVAL_X_MAX / %2$.1f]\n"
+               "set x2range [GPVAL_X_MIN / clock_freq_%1$u : GPVAL_X_MAX / clock_freq_%1$u]\n"
                "set x2tics\n"
-               "set y2label \"Clock %3$d (s)\"\n"
-               "set y2range [GPVAL_Y_MIN / %4$.1f : GPVAL_Y_MAX / %4$.1f]\n"
-               "set y2tics\n", i, (double) traceI->startFreq / traceI->freqScale, j,
-               (double) traceJ->startFreq / traceJ->freqScale);
+               "set y2label \"Clock %2$d (s)\"\n"
+               "set y2range [GPVAL_Y_MIN / clock_freq_%2$u : GPVAL_Y_MAX / clock_freq_%2$u]\n"
+               "set y2tics\n", i, j);
 }
 
 
@@ -735,6 +755,6 @@ static void writeProcessingTraceTimeOptionsLTTVStandard(SyncState* const
         "set ylabel \"time (s)\"\n"
         "set ytics nomirror\n"
                "set x2label \"Clock %1$d (s)\"\n"
-               "set x2range [GPVAL_X_MIN / %2$.1f : GPVAL_X_MAX / %2$.1f]\n"
-               "set x2tics\n", i, (double) traceI->startFreq / traceI->freqScale);
+               "set x2range [GPVAL_X_MIN / clock_freq_%1$u : GPVAL_X_MAX / clock_freq_%1$u]\n"
+               "set x2tics\n", i);
 }