diff --git a/frameworks/native/backup_ext/include/untar_file.h b/frameworks/native/backup_ext/include/untar_file.h
index 6bd0e42006717bd896f0450265fb3e8858ad3754..c2a28dc2dd4a54de78eec17fd2b6d641a52d4245 100644
--- a/frameworks/native/backup_ext/include/untar_file.h
+++ b/frameworks/native/backup_ext/include/untar_file.h
@@ -34,7 +34,7 @@ public:
     static UntarFile &GetInstance();
     int UnPacket(const std::string &tarFile, const std::string &rootPath);
     int IncrementalUnPacket(const std::string &tarFile, const std::string &rootPath,
-                            const std::map<std::string, struct ReportFileInfo> &includes);
+                            const std::unordered_map<std::string, struct ReportFileInfo> &includes);
 
 private:
     UntarFile() = default;
@@ -147,7 +147,7 @@ private:
     off_t tarFileBlockCnt_ {0};
     off_t pos_ {0};
     size_t readCnt_ {0};
-    std::map<std::string, struct ReportFileInfo> includes_;
+    std::unordered_map<std::string, struct ReportFileInfo> includes_;
 };
 } // namespace OHOS::FileManagement::Backup
 
diff --git a/frameworks/native/backup_ext/src/ext_extension.cpp b/frameworks/native/backup_ext/src/ext_extension.cpp
index 3c29b896c9a5f298507e2d50b945c9e4b865dbec..bf1da14544d012288f400a57f8629e7f8b4c2b66 100644
--- a/frameworks/native/backup_ext/src/ext_extension.cpp
+++ b/frameworks/native/backup_ext/src/ext_extension.cpp
@@ -23,6 +23,7 @@
 #include <regex>
 #include <string>
 #include <tuple>
+#include <unordered_map>
 #include <vector>
 
 #include <sys/stat.h>
@@ -543,7 +544,7 @@ int BackupExtExtension::DoRestore(const string &fileName)
     return ERR_OK;
 }
 
-static map<string, struct ReportFileInfo> GetTarIncludes(const string &tarName)
+static unordered_map<string, struct ReportFileInfo> GetTarIncludes(const string &tarName)
 {
     // 获取简报文件内容
     string reportName = GetReportFileName(tarName);
@@ -1145,9 +1146,9 @@ using CompareFilesResult = tuple<map<string, struct ReportFileInfo>,
 static CompareFilesResult CompareFiles(const UniqueFd &cloudFd, const UniqueFd &storageFd)
 {
     BReportEntity cloudRp(UniqueFd(cloudFd.Get()));
-    map<string, struct ReportFileInfo> cloudFiles = cloudRp.GetReportInfos();
+    unordered_map<string, struct ReportFileInfo> cloudFiles = cloudRp.GetReportInfos();
     BReportEntity storageRp(UniqueFd(storageFd.Get()));
-    map<string, struct ReportFileInfo> storageFiles = storageRp.GetReportInfos();
+    unordered_map<string, struct ReportFileInfo> storageFiles = storageRp.GetReportInfos();
     map<string, struct ReportFileInfo> allFiles;
     map<string, struct ReportFileInfo> smallFiles;
     map<string, struct stat> bigFiles;
diff --git a/frameworks/native/backup_ext/src/tar_file.cpp b/frameworks/native/backup_ext/src/tar_file.cpp
index 2b4b0bce39a54a6b6a340c3522c891d74fb0b275..3a7d9969e70cf65a41e2fc6d15d4d92e04702c28 100644
--- a/frameworks/native/backup_ext/src/tar_file.cpp
+++ b/frameworks/native/backup_ext/src/tar_file.cpp
@@ -114,6 +114,8 @@ bool TarFile::TraversalFile(string &filePath)
     }
 
     if (currentTarFileSize_ >= DEFAULT_SLICE_SIZE) {
+        HILOGI("Current tar file size is over %{public}d, start to slice",
+               static_cast<int32_t>(DEFAULT_SLICE_SIZE / MB_TO_BYTE));
         fileCount_ = 0;
         FillSplitTailBlocks();
         CreateSplitTarFile();
@@ -307,7 +309,7 @@ bool TarFile::FillSplitTailBlocks()
     if (currentTarFile_ == nullptr) {
         throw BError(BError::Codes::EXT_BACKUP_PACKET_ERROR, "FillSplitTailBlocks currentTarFile_ is null");
     }
-    
+
     // write tar file tail
     const int END_BLOCK_SIZE = 1024;
     vector<uint8_t> buff {};
diff --git a/frameworks/native/backup_ext/src/untar_file.cpp b/frameworks/native/backup_ext/src/untar_file.cpp
index ebff9a54170ee355b36097dd3855ad4ff969afcb..1beb90bb958df278fbf825a1df9603081a114602 100644
--- a/frameworks/native/backup_ext/src/untar_file.cpp
+++ b/frameworks/native/backup_ext/src/untar_file.cpp
@@ -95,7 +95,7 @@ int UntarFile::UnPacket(const string &tarFile, const string &rootPath)
 }
 
 int UntarFile::IncrementalUnPacket(const string &tarFile, const string &rootPath,
-                                   const map<string, struct ReportFileInfo> &includes)
+                                   const unordered_map<string, struct ReportFileInfo> &includes)
 {
     includes_ = includes;
     tarFilePtr_ = fopen(tarFile.c_str(), "rb");
diff --git a/utils/include/b_json/b_report_entity.h b/utils/include/b_json/b_report_entity.h
index 9bdc59df9901c8d7db5824da7faf07151a229f6c..38dd8e477eb48e78a62392a9dcfe439d6cc13ecf 100644
--- a/utils/include/b_json/b_report_entity.h
+++ b/utils/include/b_json/b_report_entity.h
@@ -41,7 +41,7 @@ public:
      *
      * @return std::map<string, ReportFileInfo>
      */
-    std::map<std::string, struct ReportFileInfo> GetReportInfos();
+    std::unordered_map<std::string, struct ReportFileInfo> GetReportInfos();
 
 public:
     /**
diff --git a/utils/src/b_json/b_report_entity.cpp b/utils/src/b_json/b_report_entity.cpp
index 816441b6eb5ecd13e7b1462be58127f382a401d8..90420ba6f9a089c0bf315df7ded9aa7fd4b15f0c 100644
--- a/utils/src/b_json/b_report_entity.cpp
+++ b/utils/src/b_json/b_report_entity.cpp
@@ -137,9 +137,9 @@ static void DealLine(unordered_map<string, int> &keys,
     }
 }
 
-map<string, struct ReportFileInfo> BReportEntity::GetReportInfos()
+unordered_map<string, struct ReportFileInfo> BReportEntity::GetReportInfos()
 {
-    map<string, struct ReportFileInfo> infos {};
+    unordered_map<string, struct ReportFileInfo> infos {};
 
     char buffer[HASH_BUFFER_SIZE];
     ssize_t bytesRead;