Merge pull request #786 from intel/push-2024-07-12

intel · Jul 14, 2024 · 38aaf6c · 38aaf6c
2 parents dbe28ec + 15f9147
commit 38aaf6c
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Showing 2 changed files with 5 additions and 1 deletion.
diff --git a/src/cpucounters.cpp b/src/cpucounters.cpp
@@ -3062,6 +3062,7 @@ PCM::PCM() :
 #ifdef PCM_USE_PERF
     canUsePerf = true;
     perfEventHandle.resize(num_cores, std::vector<int>(PERF_MAX_COUNTERS, -1));
+    std::fill(perfTopDownPos.begin(), perfTopDownPos.end(), 0);
 #endif
 
     for (int32 i = 0; i < num_cores; ++i)

diff --git a/src/pcm-accel-common.cpp b/src/pcm-accel-common.cpp
@@ -351,13 +351,16 @@ void readAccelCounters(SystemCounterState& sycs_)
 }
 
 AcceleratorCounterState* AcceleratorCounterState::instance = NULL;
+
+std::mutex instanceCreationMutexForAcceleratorCounterState{};
+
 AcceleratorCounterState * AcceleratorCounterState::getInstance()
  {
     // lock-free read
     // cppcheck-suppress identicalConditionAfterEarlyExit
     if (instance) return instance;
 
-    std::unique_lock<std::mutex> instanceCreationMutex;
+    std::unique_lock<std::mutex> _(instanceCreationMutexForAcceleratorCounterState);
     // cppcheck-suppress identicalConditionAfterEarlyExit
     if (instance) return instance;