diff --git a/Framework/Core/include/Framework/DeviceMetricsInfo.h b/Framework/Core/include/Framework/DeviceMetricsInfo.h
index d55f1cb44f71d..ad143b7ef9373 100644
--- a/Framework/Core/include/Framework/DeviceMetricsInfo.h
+++ b/Framework/Core/include/Framework/DeviceMetricsInfo.h
@@ -12,7 +12,6 @@
 #ifndef O2_FRAMEWORK_DEVICEMETRICSINFO_H_
 #define O2_FRAMEWORK_DEVICEMETRICSINFO_H_
 
-#include "Framework/RuntimeError.h"
 #include "Framework/CompilerBuiltins.h"
 #include "Framework/Traits.h"
 #include <array>
@@ -21,6 +20,7 @@
 #include <span>
 #include <string>
 #include <vector>
+#include <iosfwd>
 
 namespace o2::framework
 {
@@ -191,62 +191,8 @@ struct DeviceMetricsInfoHelpers {
     }
   }
 
-  static void clearMetrics(std::vector<DeviceMetricsInfo>& infos)
-  {
-    for (auto& info : infos) {
-      info.intMetrics.clear();
-      info.uint64Metrics.clear();
-      info.stringMetrics.clear(); // We do not keep so many strings as metrics as history is less relevant.
-      info.floatMetrics.clear();
-      info.enumMetrics.clear();
-      info.intTimestamps.clear();
-      info.uint64Timestamps.clear();
-      info.floatTimestamps.clear();
-      info.stringTimestamps.clear();
-      info.enumTimestamps.clear();
-      info.max.clear();
-      info.min.clear();
-      info.average.clear();
-      info.minDomain.clear();
-      info.maxDomain.clear();
-      info.metricLabels.clear();
-      info.metricPrefixes.clear();
-      info.metricLabelsAlphabeticallySortedIdx.clear();
-      info.metricLabelsPrefixesSortedIdx.clear();
-      info.metrics.clear();
-      info.changed.clear();
-    }
-  }
-  static size_t metricsStorageSize(std::span<DeviceMetricsInfo const> infos)
-  {
-    // Count the size of the metrics storage
-    size_t totalSize = 0;
-    for (auto& info : infos) {
-      totalSize += info.intMetrics.size() * sizeof(MetricsStorage<int>);
-      totalSize += info.uint64Metrics.size() * sizeof(MetricsStorage<uint64_t>);
-      totalSize += info.stringMetrics.size() * sizeof(MetricsStorage<StringMetric>);
-      totalSize += info.floatMetrics.size() * sizeof(MetricsStorage<float>);
-      totalSize += info.enumMetrics.size() * sizeof(MetricsStorage<int8_t>);
-      totalSize += info.intTimestamps.size() * sizeof(TimestampsStorage<int>);
-      totalSize += info.uint64Timestamps.size() * sizeof(TimestampsStorage<uint64_t>);
-      totalSize += info.floatTimestamps.size() * sizeof(TimestampsStorage<float>);
-      totalSize += info.stringTimestamps.size() * sizeof(TimestampsStorage<StringMetric>);
-      totalSize += info.enumTimestamps.size() * sizeof(TimestampsStorage<int8_t>);
-      totalSize += info.max.size() * sizeof(float);
-      totalSize += info.min.size() * sizeof(float);
-      totalSize += info.average.size() * sizeof(float);
-      totalSize += info.minDomain.size() * sizeof(size_t);
-      totalSize += info.maxDomain.size() * sizeof(size_t);
-      totalSize += info.metricLabels.size() * sizeof(MetricLabel);
-      totalSize += info.metricPrefixes.size() * sizeof(MetricPrefix);
-      totalSize += info.metricLabelsAlphabeticallySortedIdx.size() * sizeof(MetricLabelIndex);
-      totalSize += info.metricLabelsPrefixesSortedIdx.size() * sizeof(MetricPrefixIndex);
-      totalSize += info.metrics.size() * sizeof(MetricInfo);
-      totalSize += info.changed.size() * sizeof(bool);
-    }
-
-    return totalSize;
-  }
+  static void clearMetrics(std::vector<DeviceMetricsInfo>& infos);
+  static size_t metricsStorageSize(std::span<DeviceMetricsInfo const> infos);
 };
 
 } // namespace o2::framework
diff --git a/Framework/Core/src/DeviceMetricsInfo.cxx b/Framework/Core/src/DeviceMetricsInfo.cxx
index 9a208c4535554..ccb8d5d2e6d8f 100644
--- a/Framework/Core/src/DeviceMetricsInfo.cxx
+++ b/Framework/Core/src/DeviceMetricsInfo.cxx
@@ -50,4 +50,62 @@ std::ostream& operator<<(std::ostream& oss, MetricType const& val)
   return oss;
 }
 
+void DeviceMetricsInfoHelpers::clearMetrics(std::vector<DeviceMetricsInfo>& infos)
+{
+  for (auto& info : infos) {
+    info.intMetrics.clear();
+    info.uint64Metrics.clear();
+    info.stringMetrics.clear(); // We do not keep so many strings as metrics as history is less relevant.
+    info.floatMetrics.clear();
+    info.enumMetrics.clear();
+    info.intTimestamps.clear();
+    info.uint64Timestamps.clear();
+    info.floatTimestamps.clear();
+    info.stringTimestamps.clear();
+    info.enumTimestamps.clear();
+    info.max.clear();
+    info.min.clear();
+    info.average.clear();
+    info.minDomain.clear();
+    info.maxDomain.clear();
+    info.metricLabels.clear();
+    info.metricPrefixes.clear();
+    info.metricLabelsAlphabeticallySortedIdx.clear();
+    info.metricLabelsPrefixesSortedIdx.clear();
+    info.metrics.clear();
+    info.changed.clear();
+  }
+}
+
+size_t DeviceMetricsInfoHelpers::metricsStorageSize(std::span<DeviceMetricsInfo const> infos)
+{
+  // Count the size of the metrics storage
+  size_t totalSize = 0;
+  for (auto& info : infos) {
+    totalSize += info.intMetrics.size() * sizeof(MetricsStorage<int>);
+    totalSize += info.uint64Metrics.size() * sizeof(MetricsStorage<uint64_t>);
+    totalSize += info.stringMetrics.size() * sizeof(MetricsStorage<StringMetric>);
+    totalSize += info.floatMetrics.size() * sizeof(MetricsStorage<float>);
+    totalSize += info.enumMetrics.size() * sizeof(MetricsStorage<int8_t>);
+    totalSize += info.intTimestamps.size() * sizeof(TimestampsStorage<int>);
+    totalSize += info.uint64Timestamps.size() * sizeof(TimestampsStorage<uint64_t>);
+    totalSize += info.floatTimestamps.size() * sizeof(TimestampsStorage<float>);
+    totalSize += info.stringTimestamps.size() * sizeof(TimestampsStorage<StringMetric>);
+    totalSize += info.enumTimestamps.size() * sizeof(TimestampsStorage<int8_t>);
+    totalSize += info.max.size() * sizeof(float);
+    totalSize += info.min.size() * sizeof(float);
+    totalSize += info.average.size() * sizeof(float);
+    totalSize += info.minDomain.size() * sizeof(size_t);
+    totalSize += info.maxDomain.size() * sizeof(size_t);
+    totalSize += info.metricLabels.size() * sizeof(MetricLabel);
+    totalSize += info.metricPrefixes.size() * sizeof(MetricPrefix);
+    totalSize += info.metricLabelsAlphabeticallySortedIdx.size() * sizeof(MetricLabelIndex);
+    totalSize += info.metricLabelsPrefixesSortedIdx.size() * sizeof(MetricPrefixIndex);
+    totalSize += info.metrics.size() * sizeof(MetricInfo);
+    totalSize += info.changed.size() * sizeof(bool);
+  }
+
+  return totalSize;
+}
+
 } // namespace o2::framework