From f52000d86eed69ae8c96b7199b208a0a0a150f68 Mon Sep 17 00:00:00 2001
From: gccgdb1234 <wxzhang@taosdata.com>
Date: Sat, 29 Oct 2022 22:25:40 +0800
Subject: [PATCH] return mem to os

---
 include/os/osMemory.h                       | 1 +
 source/dnode/mgmt/mgmt_dnode/src/dmWorker.c | 3 ++-
 source/os/src/osMemory.c                    | 4 ++++
 3 files changed, 7 insertions(+), 1 deletion(-)

diff --git a/include/os/osMemory.h b/include/os/osMemory.h
index 7ec8366ee4..14d53a7a06 100644
--- a/include/os/osMemory.h
+++ b/include/os/osMemory.h
@@ -36,6 +36,7 @@ void   *taosMemoryStrDup(const char *ptr);
 void    taosMemoryFree(void *ptr);
 int64_t taosMemorySize(void *ptr);
 void    taosPrintBackTrace();
+void    taosMemoryTrim(int32_t size);
 
 #define taosMemoryFreeClear(ptr)   \
   do {                             \
diff --git a/source/dnode/mgmt/mgmt_dnode/src/dmWorker.c b/source/dnode/mgmt/mgmt_dnode/src/dmWorker.c
index ca8a434d05..07a612bb35 100644
--- a/source/dnode/mgmt/mgmt_dnode/src/dmWorker.c
+++ b/source/dnode/mgmt/mgmt_dnode/src/dmWorker.c
@@ -20,7 +20,7 @@ static void *dmStatusThreadFp(void *param) {
   SDnodeMgmt *pMgmt = param;
   int64_t     lastTime = taosGetTimestampMs();
   setThreadName("dnode-status");
-
+  
   while (1) {
     taosMsleep(200);
     if (pMgmt->pData->dropped || pMgmt->pData->stopped) break;
@@ -28,6 +28,7 @@ static void *dmStatusThreadFp(void *param) {
     int64_t curTime = taosGetTimestampMs();
     float   interval = (curTime - lastTime) / 1000.0f;
     if (interval >= tsStatusInterval) {
+      taosMemoryTrim(0); 
       dmSendStatusReq(pMgmt);
       lastTime = curTime;
     }
diff --git a/source/os/src/osMemory.c b/source/os/src/osMemory.c
index 75a963d5c7..2949d08d61 100644
--- a/source/os/src/osMemory.c
+++ b/source/os/src/osMemory.c
@@ -336,3 +336,7 @@ int64_t taosMemorySize(void *ptr) {
 #endif
 #endif
 }
+
+void taosMemoryTrim(int32_t size) {
+    malloc_trim(size);
+}