Synchronize access to time series.

PiperOrigin-RevId: 369426995
katre · Apr 20, 2021 · f92e007 · f92e007
1 parent c9c9bd3
commit f92e007
Showing 1 changed file with 5 additions and 3 deletions.
diff --git a/src/main/java/com/google/devtools/build/lib/profiler/Profiler.java b/src/main/java/com/google/devtools/build/lib/profiler/Profiler.java
@@ -725,9 +725,11 @@ private void completeTask(TaskData data) {
 
       if (shouldRecordTask) {
         if (actionCountTimeSeries != null && countAction(data.type, data)) {
-          actionCountTimeSeries.addRange(
-              Duration.ofNanos(data.startTimeNanos).toMillis(),
-              Duration.ofNanos(endTime).toMillis());
+          synchronized (this) {
+            actionCountTimeSeries.addRange(
+                Duration.ofNanos(data.startTimeNanos).toMillis(),
+                Duration.ofNanos(endTime).toMillis());
+          }
         }
         SlowestTaskAggregator aggregator = slowestTasks[data.type.ordinal()];
         if (aggregator != null) {