diff --git a/frameworks/native/backup_ext/src/tar_file.cpp b/frameworks/native/backup_ext/src/tar_file.cpp
index 8595d911d712ef0c618a9f0e5a8ee7b2bc336f0b..80de4451ca0aedf17a65bc47a7298cfefdb2a24e 100644
--- a/frameworks/native/backup_ext/src/tar_file.cpp
+++ b/frameworks/native/backup_ext/src/tar_file.cpp
@@ -37,6 +37,8 @@ const uint64_t MAX_FILE_SIZE = 0777777777777L;
 const uint32_t OCTSTR_LEN = sizeof(off_t) * 3 + 1;
 const uint32_t DEFAULT_SLICE_SIZE = 100 * MB_TO_BYTE; // 分片文件大小为100M
 const uint32_t MAX_FILE_COUNT = 6000;                 // 单个tar包最多包含6000个文件
+const uint32_t WAIT_INDEX = 100000;
+const uint32_t WAIT_TIME = 5;
 const string VERSION = "1.0";
 const string LONG_LINK_SYMBOL = "longLinkSymbol";
 } // namespace
@@ -65,11 +67,18 @@ bool TarFile::Packet(const vector<string> &srcFiles, const string &tarFileName,
         return false;
     }
 
+    size_t index = 0;
     for (auto &filePath : srcFiles) {
         rootPath_ = filePath;
         if (!TraversalFile(rootPath_)) {
             HILOGE("Failed to traversal file");
         }
+        index++;
+        if (index >= WAIT_INDEX) {
+            HILOGD("Sleep to wait");
+            sleep(WAIT_TIME);
+            index = 0;
+        }
     }
 
     if (!FillSplitTailBlocks()) {
diff --git a/services/backup_sa/include/module_external/sms_adapter.h b/services/backup_sa/include/module_external/sms_adapter.h
index 5dd16545bc8c2cde2bf7bb00d7e1574e2adaaf89..0e3b51e78ee2ba325b4ed9491637116ccc78fb21 100644
--- a/services/backup_sa/include/module_external/sms_adapter.h
+++ b/services/backup_sa/include/module_external/sms_adapter.h
@@ -37,6 +37,13 @@ public:
      * @param userId user id
      */
     static int64_t GetUserStorageStats(const std::string &bundleName, int32_t userId);
+
+    /**
+     * @brief update memory para
+     *
+     * @param size para data
+    */
+    static int32_t UpdateMemPara(int32_t size);
 };
 } // namespace OHOS::FileManagement::Backup
 #endif // OHOS_FILEMGMT_BACKUP_STORAGE_MGR_ADAPTER_H
\ No newline at end of file
diff --git a/services/backup_sa/include/module_ipc/svc_session_manager.h b/services/backup_sa/include/module_ipc/svc_session_manager.h
index 46671ac84031d1128b7ca1235a8ad72f4cec321d..fbf1614ac24c2a7a13fad392ef6d031f49413b7e 100644
--- a/services/backup_sa/include/module_ipc/svc_session_manager.h
+++ b/services/backup_sa/include/module_ipc/svc_session_manager.h
@@ -377,6 +377,19 @@ public:
      */
     void ClearSessionData();
 
+    /**
+     * @brief 获取备份前内存参数
+     *
+    */
+    int32_t GetMemParaCurSize();
+
+    /**
+     * @brief 记录备份前内存参数
+     *
+     * @param size
+    */
+    void SetMemParaCurSize(int32_t size);
+
 private:
     /**
      * @brief 获取backup extension ability
@@ -431,6 +444,7 @@ private:
     uint32_t extConnectNum_ {0};
     Utils::Timer extBundleTimer {"backupBundleExtTimer"};
     std::atomic<int> sessionCnt_ {0};
+    int32_t memoryParaCurSize_ {100};
 };
 } // namespace OHOS::FileManagement::Backup
 
diff --git a/services/backup_sa/src/module_external/sms_adapter.cpp b/services/backup_sa/src/module_external/sms_adapter.cpp
index e6613ed2cb8cdd575d5e52129d938f80a1d5cb15..7055d0d3fd0cfee86e9246fe261eabdfc99a562e 100644
--- a/services/backup_sa/src/module_external/sms_adapter.cpp
+++ b/services/backup_sa/src/module_external/sms_adapter.cpp
@@ -18,6 +18,7 @@
 #include <refbase.h>
 
 #include "b_error/b_error.h"
+#include "b_resources/b_constants.h"
 #include "filemgmt_libhilog.h"
 #include "iservice_registry.h"
 #include "system_ability_definition.h"
@@ -69,4 +70,14 @@ int64_t StorageMgrAdapter::GetUserStorageStats(const std::string &bundleName, in
     }
     return 0;
 }
+
+int32_t StorageMgrAdapter::UpdateMemPara(int32_t size)
+{
+    auto storageMgr = GetStorageManager();
+    int32_t oldSize = BConstants::DEF_VFS_CACHE_PRESSURE;
+    if (storageMgr->UpdateMemoryPara(size, oldSize)) {
+        HILOGE("An error occured StorageMgrAdapter UpdateMemPara");
+    }
+    return oldSize;
+}
 } // namespace OHOS::FileManagement::Backup
diff --git a/services/backup_sa/src/module_ipc/service.cpp b/services/backup_sa/src/module_ipc/service.cpp
index 2f90faa05de4fa6ae4a438aed15803864aa85681..01f1625da34aa74cfafdc2cd5766057617d77f2f 100644
--- a/services/backup_sa/src/module_ipc/service.cpp
+++ b/services/backup_sa/src/module_ipc/service.cpp
@@ -50,6 +50,7 @@
 #include "ipc_skeleton.h"
 #include "module_app_gallery/app_gallery_dispose_proxy.h"
 #include "module_external/bms_adapter.h"
+#include "module_external/sms_adapter.h"
 #include "module_ipc/svc_backup_connection.h"
 #include "module_ipc/svc_restore_deps_manager.h"
 #include "parameter.h"
@@ -89,6 +90,11 @@ void Service::OnStart()
 void Service::OnStop()
 {
     HILOGI("Called");
+    int32_t oldMemoryParaSize = BConstants::DEF_VFS_CACHE_PRESSURE;
+    if (session_ != nullptr) {
+        oldMemoryParaSize = session_->GetMemParaCurSize();
+    }
+    StorageMgrAdapter::UpdateMemPara(oldMemoryParaSize);
     sched_ = nullptr;
     session_ = nullptr;
 }
diff --git a/services/backup_sa/src/module_ipc/svc_session_manager.cpp b/services/backup_sa/src/module_ipc/svc_session_manager.cpp
index 1b245feaa0bb9ec95cf36cdccc303fc20e1bc1fd..c2898a340a28ba4707543b41611c28c93911f6fe 100644
--- a/services/backup_sa/src/module_ipc/svc_session_manager.cpp
+++ b/services/backup_sa/src/module_ipc/svc_session_manager.cpp
@@ -628,4 +628,14 @@ void SvcSessionManager::ClearSessionData()
     }
     impl_.backupExtNameMap.clear();
 }
+
+int32_t SvcSessionManager::GetMemParaCurSize()
+{
+    return memoryParaCurSize_;
+}
+
+void SvcSessionManager::SetMemParaCurSize(int32_t size)
+{
+    memoryParaCurSize_ = size;
+}
 } // namespace OHOS::FileManagement::Backup
diff --git a/tests/mock/module_external/sms_adapter_mock.cpp b/tests/mock/module_external/sms_adapter_mock.cpp
index 1ef1c8f2074a9d6ead83a57f3f73afd37dbe4c36..cafd6c62164e2c2edd3541e35b5b0b610a416864 100644
--- a/tests/mock/module_external/sms_adapter_mock.cpp
+++ b/tests/mock/module_external/sms_adapter_mock.cpp
@@ -24,4 +24,9 @@ StorageManager::BundleStats StorageMgrAdapter::GetBundleStats(const std::string
     StorageManager::BundleStats bundleStats;
     return bundleStats;
 }
+
+int32_t StorageMgrAdapter::UpdateMemPara(int32_t size)
+{
+    return 0;
+}
 } // namespace OHOS::FileManagement::Backup
diff --git a/tests/mock/module_ipc/svc_session_manager_mock.cpp b/tests/mock/module_ipc/svc_session_manager_mock.cpp
index 8c9ff7ab977323922c647336271be59c1c1e3936..580b034bb779d11764b48ebfc2a1d49a882490f7 100644
--- a/tests/mock/module_ipc/svc_session_manager_mock.cpp
+++ b/tests/mock/module_ipc/svc_session_manager_mock.cpp
@@ -313,5 +313,12 @@ void SvcSessionManager::IncreaseSessionCnt() {}
 
 void SvcSessionManager::DecreaseSessionCnt() {}
 
+int32_t SvcSessionManager::GetMemParaCurSize()
+{
+    return 0;
+}
+
+void SvcSessionManager::SetMemParaCurSize(int32_t size) {}
+
 void SvcSessionManager::ClearSessionData() {}
 } // namespace OHOS::FileManagement::Backup
diff --git a/utils/include/b_resources/b_constants.h b/utils/include/b_resources/b_constants.h
index da3ab5d0d7147f00f64da49fe73961b3c91880cb..077c21b9e3f4449e45a77411f7089cebc6b96b32 100644
--- a/utils/include/b_resources/b_constants.h
+++ b/utils/include/b_resources/b_constants.h
@@ -63,6 +63,9 @@ constexpr int EXT_CONNECT_MAX_TIME = 15000;   // SA 启动 extension 等待连
 
 constexpr int IPC_MAX_WAIT_TIME = 3000; // IPC通讯最大等待时间(s)
 
+constexpr int DEF_VFS_CACHE_PRESSURE = 100; // 默认内存回收参数
+constexpr int BACKUP_VFS_CACHE_PRESSURE = 5000; // 备份过程修改参数
+
 // backup.para内配置项的名称，该配置项值为true时可在不更新hap包的情况下，可以读取包管理元数据配置文件的内容
 static inline std::string BACKUP_DEBUG_OVERRIDE_EXTENSION_CONFIG_KEY = "backup.debug.overrideExtensionConfig";