Update class comments.

3 files changed, 7 insertions, 4 deletions

diff --git a/searchcore/src/vespa/searchcore/proton/attribute/attribute_usage_sampler_context.h b/searchcore/src/vespa/searchcore/proton/attribute/attribute_usage_sampler_context.h
index b5693aef1bc..6f33ac483c1 100644
--- a/searchcore/src/vespa/searchcore/proton/attribute/attribute_usage_sampler_context.h
+++ b/searchcore/src/vespa/searchcore/proton/attribute/attribute_usage_sampler_context.h
@@ -12,8 +12,9 @@ class AttributeConfigInspector;
 class TransientMemoryUsageProvider;
 
 /*
- * Context for sampling attribute usage stats.  When instance is
- * destroyed, the aggregated stats is passed on to attribute usage filter.
+ * Context for sampling attribute usage stats and transient memory usage.
+ * When instance is destroyed, the aggregated stats is passed on to
+ * attribute usage filter and the transient memory usage provider.
  */
 class AttributeUsageSamplerContext
 {
diff --git a/searchcore/src/vespa/searchcore/proton/common/i_transient_memory_usage_provider.h b/searchcore/src/vespa/searchcore/proton/common/i_transient_memory_usage_provider.h
index e00ccfd3c27..cd87150195c 100644
--- a/searchcore/src/vespa/searchcore/proton/common/i_transient_memory_usage_provider.h
+++ b/searchcore/src/vespa/searchcore/proton/common/i_transient_memory_usage_provider.h
@@ -8,7 +8,8 @@ namespace proton {
 
 /*
  * Interface class providing transient memory usage, e.g. extra memory needed
- * for loading or saving an attribute vector.
+ * for loading or saving an attribute vector. It provides an aggregated view
+ * over several components (e.g. all attribute vectors for a document type).
  */
 class ITransientMemoryUsageProvider {
 public:
diff --git a/searchcore/src/vespa/searchcore/proton/common/transient_memory_usage_provider.h b/searchcore/src/vespa/searchcore/proton/common/transient_memory_usage_provider.h
index 42c6933677a..8cda4278ad8 100644
--- a/searchcore/src/vespa/searchcore/proton/common/transient_memory_usage_provider.h
+++ b/searchcore/src/vespa/searchcore/proton/common/transient_memory_usage_provider.h
@@ -10,7 +10,8 @@ namespace proton {
 
 /*
  * Class providing transient memory usage, e.g. extra memory needed
- * for loading or saving an attribute vector.
+ * for loading or saving an attribute vector. It provides an aggregated view
+ * over several components (e.g. all attribute vectors for a document type).
  */
 class TransientMemoryUsageProvider : public ITransientMemoryUsageProvider {
     std::atomic<size_t> _transient_memory_usage;