diff --git a/src/backend/utils/mmgr/aset.c b/src/backend/utils/mmgr/aset.c
index b6eeb8abab..f4977f9bcc 100644
--- a/src/backend/utils/mmgr/aset.c
+++ b/src/backend/utils/mmgr/aset.c
@@ -46,6 +46,7 @@
 
 #include "postgres.h"
 
+#include "miscadmin.h"
 #include "port/pg_bitutils.h"
 #include "utils/memdebug.h"
 #include "utils/memutils.h"
@@ -696,9 +697,22 @@ AllocSetAlloc(MemoryContext context, Size size)
 	int			fidx;
 	Size		chunk_size;
 	Size		blksize;
+	static int	rlevel = 1;
 
 	AssertArg(AllocSetIsValid(set));
 
+	if (rlevel == 1 && GetProcessingMode() == NormalProcessing)
+	{
+		rlevel++;
+		elog(LOG, "AllocSetAlloc,%s,%zu,%zu,%zu,%zu",
+			 context->name,
+			 size,
+			 MAXALIGN(size),
+			 size > set->allocChunkLimit ? 0 : GetChunkSizeFromFreeListIdx(AllocSetFreeIndex(size)),
+			 set->allocChunkLimit);
+		rlevel--;
+	}
+
 	/*
 	 * If requested size exceeds maximum for chunks, allocate an entire block
 	 * for this request.
diff --git a/src/backend/utils/mmgr/generation.c b/src/backend/utils/mmgr/generation.c
index b39894ec94..9c5ff3c095 100644
--- a/src/backend/utils/mmgr/generation.c
+++ b/src/backend/utils/mmgr/generation.c
@@ -36,6 +36,7 @@
 #include "postgres.h"
 
 #include "lib/ilist.h"
+#include "miscadmin.h"
 #include "port/pg_bitutils.h"
 #include "utils/memdebug.h"
 #include "utils/memutils.h"
@@ -344,6 +345,18 @@ GenerationAlloc(MemoryContext context, Size size)
 	MemoryChunk *chunk;
 	Size		chunk_size = MAXALIGN(size);
 	Size		required_size = chunk_size + Generation_CHUNKHDRSZ;
+	static int	rlevel = 1;
+
+	if (rlevel == 1 && GetProcessingMode() == NormalProcessing)
+	{
+		rlevel++;
+		elog(LOG, "GenerationAlloc,%s,%zu,%zu,0,%zu",
+			 context->name,
+			 size,
+			 MAXALIGN(size),
+			 set->allocChunkLimit);
+		rlevel--;
+	}
 
 	/* is it an over-sized chunk? if yes, allocate special block */
 	if (chunk_size > set->allocChunkLimit)