diff --git a/include/nuttx/mm/mempool.h b/include/nuttx/mm/mempool.h
index 4c7aeaeb5c..8e4236cedc 100644
--- a/include/nuttx/mm/mempool.h
+++ b/include/nuttx/mm/mempool.h
@@ -75,6 +75,9 @@ struct mempool_s
   size_t     expandsize;    /* The size of expand block every time for mempool */
   bool       wait;          /* The flag of need to wait when mempool is empty */
   FAR void  *priv;          /* This pointer is used to store the user's private data */
+  bool       calibrate;     /* The flag is use expend memory calibration
+                             * real memory usage
+                             */
   mempool_alloc_t alloc;    /* The alloc function for mempool */
   mempool_free_t  free;     /* The free function for mempool */
 
@@ -85,12 +88,14 @@ struct mempool_s
   sq_queue_t iqueue;  /* The free block queue in interrupt mempool */
   sq_queue_t equeue;  /* The expand block queue for normal mempool */
 #if CONFIG_MM_BACKTRACE >= 0
-  struct list_node alist;   /* The used block list in mempool */
+  struct list_node alist;     /* The used block list in mempool */
 #else
-  size_t           nalloc;  /* The number of used block in mempool */
+  size_t           nalloc;    /* The number of used block in mempool */
 #endif
-  spinlock_t       lock;    /* The protect lock to mempool */
-  sem_t            waitsem; /* The semaphore of waiter get free block */
+  spinlock_t       lock;      /* The protect lock to mempool */
+  sem_t            waitsem;   /* The semaphore of waiter get free block */
+  size_t           nexpend;   /* The number of expend memory for mempool */
+  size_t           totalsize; /* Total size of the expend for mempoll */
 #if defined(CONFIG_FS_PROCFS) && !defined(CONFIG_FS_PROCFS_EXCLUDE_MEMPOOL)
   struct mempool_procfs_entry_s procfs; /* The entry of procfs */
 #endif
@@ -288,8 +293,8 @@ void mempool_procfs_unregister(FAR struct mempool_procfs_entry_s *entry);
  *   free            - The free memory function for multiples pool.
  *   arg             - The alloc & free memory fuctions used arg.
  *   expandsize      - The expend mempry for all pools in multiples pool.
- *   dict_expendsize - The expend number for multiple dictnoary
- *
+ *   dict_expendsize - The expend size for multiple dictnoary.
+ *   calibrate       - Whether to calibrate when counting memory usage.
  * Returned Value:
  *   Return an initialized multiple pool pointer on success,
  *   otherwise NULL is returned.
@@ -304,7 +309,7 @@ mempool_multiple_init(FAR const char *name,
                       mempool_multiple_alloc_t alloc,
                       mempool_multiple_free_t free,
                       FAR void *arg, size_t expandsize,
-                      size_t dict_expendsize);
+                      size_t dict_expendsize, bool calibrate);
 
 /****************************************************************************
  * Name: mempool_multiple_alloc
diff --git a/mm/mempool/mempool.c b/mm/mempool/mempool.c
index 10186c2aa9..7a1ea154ff 100644
--- a/mm/mempool/mempool.c
+++ b/mm/mempool/mempool.c
@@ -154,6 +154,8 @@ int mempool_init(FAR struct mempool_s *pool, FAR const char *name)
   sq_init(&pool->queue);
   sq_init(&pool->iqueue);
   sq_init(&pool->equeue);
+  pool->nexpend = 0;
+  pool->totalsize = 0;
 
 #if CONFIG_MM_BACKTRACE >= 0
   list_initialize(&pool->alist);
@@ -173,6 +175,8 @@ int mempool_init(FAR struct mempool_s *pool, FAR const char *name)
           return -ENOMEM;
         }
 
+      pool->nexpend++;
+      pool->totalsize += size;
       mempool_add_queue(&pool->iqueue, pool->ibase, ninterrupt, blocksize);
       kasan_poison(pool->ibase, size);
     }
@@ -194,6 +198,8 @@ int mempool_init(FAR struct mempool_s *pool, FAR const char *name)
           return -ENOMEM;
         }
 
+      pool->nexpend++;
+      pool->totalsize += size;
       mempool_add_queue(&pool->queue, base, ninitial, blocksize);
       sq_addlast((FAR sq_entry_t *)(base + ninitial * blocksize),
                   &pool->equeue);
@@ -273,6 +279,8 @@ retry:
                   return NULL;
                 }
 
+              pool->nexpend++;
+              pool->totalsize += size;
               kasan_poison(base, size);
               flags = spin_lock_irqsave(&pool->lock);
               mempool_add_queue(&pool->queue, base, nexpand, blocksize);
@@ -425,6 +433,11 @@ int mempool_info_task(FAR struct mempool_s *pool,
 
       info->aordblks += count;
       info->uordblks += count * pool->blocksize;
+      if (pool->calibrate)
+        {
+          info->aordblks -= pool->nexpend;
+          info->uordblks -= pool->totalsize;
+        }
     }
   else if (info->pid == -1)
     {
@@ -436,6 +449,8 @@ int mempool_info_task(FAR struct mempool_s *pool,
 
       info->aordblks += count;
       info->uordblks += count * pool->blocksize;
+      info->aordblks -= pool->nexpend;
+      info->uordblks -= pool->totalsize;
     }
 #if CONFIG_MM_BACKTRACE >= 0
   else
diff --git a/mm/mempool/mempool_multiple.c b/mm/mempool/mempool_multiple.c
index c8516ae79f..0ca738be06 100644
--- a/mm/mempool/mempool_multiple.c
+++ b/mm/mempool/mempool_multiple.c
@@ -253,7 +253,8 @@ mempool_multiple_get_dict(FAR struct mempool_multiple_s *mpool,
  *   free            - The free memory function for multiples pool.
  *   arg             - The alloc & free memory fuctions used arg.
  *   expandsize      - The expend mempry for all pools in multiples pool.
- *   dict_expendsize -  The expend size for multiple dictnoary
+ *   dict_expendsize - The expend size for multiple dictnoary.
+ *   calibrate       - Whether to calibrate when counting memory usage.
  * Returned Value:
  *   Return an initialized multiple pool pointer on success,
  *   otherwise NULL is returned.
@@ -266,7 +267,7 @@ mempool_multiple_init(FAR const char *name,
                       mempool_multiple_alloc_t alloc,
                       mempool_multiple_free_t free,
                       FAR void *arg, size_t expandsize,
-                      size_t dict_expendsize)
+                      size_t dict_expendsize, bool calibrate)
 {
   FAR struct mempool_multiple_s *mpool;
   FAR struct mempool_s *pools;
@@ -325,6 +326,7 @@ mempool_multiple_init(FAR const char *name,
       pools[i].priv = mpool;
       pools[i].alloc = mempool_multiple_alloc_callback;
       pools[i].free = mempool_multiple_free_callback;
+      pools[i].calibrate = calibrate;
 
       ret = mempool_init(pools + i, name);
       if (ret < 0)
diff --git a/mm/mm_heap/mm_initialize.c b/mm/mm_heap/mm_initialize.c
index 763c9387a2..830bf15389 100644
--- a/mm/mm_heap/mm_initialize.c
+++ b/mm/mm_heap/mm_initialize.c
@@ -259,7 +259,8 @@ FAR struct mm_heap_s *mm_initialize(FAR const char *name,
                                   (mempool_multiple_alloc_t)mm_memalign,
                                   (mempool_multiple_free_t)mm_free, heap,
                                   CONFIG_MM_HEAP_MEMPOOL_EXPAND,
-                                  CONFIG_MM_HEAP_MEMPOOL_DICTIONARY_EXPAND);
+                                  CONFIG_MM_HEAP_MEMPOOL_DICTIONARY_EXPAND,
+                                  true);
 #endif
 
   return heap;
diff --git a/mm/tlsf/mm_tlsf.c b/mm/tlsf/mm_tlsf.c
index 308fc1ca2c..7e3ab3093b 100644
--- a/mm/tlsf/mm_tlsf.c
+++ b/mm/tlsf/mm_tlsf.c
@@ -804,7 +804,8 @@ FAR struct mm_heap_s *mm_initialize(FAR const char *name,
                                   (mempool_multiple_alloc_t)mm_memalign,
                                   (mempool_multiple_free_t)mm_free, heap,
                                   CONFIG_MM_HEAP_MEMPOOL_EXPAND,
-                                  CONFIG_MM_HEAP_MEMPOOL_DICTIONARY_EXPAND);
+                                  CONFIG_MM_HEAP_MEMPOOL_DICTIONARY_EXPAND,
+                                  true);
 #endif
 
   return heap;