diff --git a/omniadvisor/script/auto_deploy.sh b/omniadvisor/script/auto_deploy.sh
index 943507875112b9357aa77d47b902392ab894a47b..50d8e869267573e0e2a2d3031bc30e240b367599 100644
--- a/omniadvisor/script/auto_deploy.sh
+++ b/omniadvisor/script/auto_deploy.sh
@@ -1,64 +1,103 @@
+#!/bin/bash
+
+log() {  # 用法：log LEVEL "message"
+  local level=${1:-INFO}; shift
+  printf '%s [%s] %s\n' "$(date '+%F %T%z')" "$level" "$*" >&2
+}
+
+log INFO "即将开始自动部署OmniAdvisor2.0..."
+# 获取软件包路径
 prefix=$(dirname `dirname $(pwd)`)
 core_dir=$prefix/BoostKit-omniadvisor_core_2.0.0
 frame_dir=$prefix/BoostKit-omniadvisor_2.0.0
 
-# 合并核心代码与框架代码
-ls -l $frame_dir/src
-ls -l $core_dir/src
-cp -r $core_dir/src/algo $frame_dir/src/
-cp -r $core_dir/config/* $frame_dir/config/
+log INFO "检查目标路径是否存在..."
+# 路径存在性检查
+## 检测软件包路径
+for d in "$core_dir" "$frame_dir"; do
+  if [[ ! -d "$d" ]]; then
+    log ERROR "错误：目录不存在 -> $d" >&2
+    log ERROR "请检查软件包是否有按要求放置到指定位置" >&2
+    exit 1
+  else
+    log INFO "$d 存在"
+  fi
+done
 
+## 检查SPARK_HOME是否正确配置
 if [ -z "${SPARK_HOME}" ]; then
   # 如果 SPARK_HOME 未设置，打印错误信息并退出
-  echo "错误: SPARK_HOME 环境变量未设置！" >&2
-  echo "请先配置 SPARK_HOME 环境变量，指向您的 Spark 安装目录" >&2
-  echo "例如: " >&2
-  echo " export SPARK_HOME=/path/to/your/spark" >&2
-  echo "然后将此行添加到您的 ~/.bashrc 或者 ~/.zshrc 文件中" >&2
+  log ERROR "错误: SPARK_HOME 环境变量未设置！" >&2
+  log ERROR "请先配置 SPARK_HOME 环境变量，指向您的 Spark 安装目录" >&2
+  log ERROR "例如: " >&2
+  log ERROR "export SPARK_HOME=/path/to/your/spark" >&2
+  log ERROR "然后将此行添加到您的 ~/.bashrc 或者 ~/.zshrc 文件中" >&2
   exit 1 # 以非零状态退出 表示错误
+else
+  log INFO "SPARK_HOME=${SPARK_HOME}环境变量已配置"
 fi
 
-# 替换spark-submit脚本
-spark_submit_modified=$frame_dir/script/spark-submit
-spark_submit_link=$SPARK_HOME/bin/spark-submit
-original_spark_submit_file=spark_submit_link
 
+# 合并核心代码与框架代码
+log INFO "将算法模块合并到执行框架目录中..."
+log INFO "OmniAdvisor2.0框架模块目录: $frame_dir"
+log INFO "OmniAdvisor2.0算法模块目录: $core_dir"
+
+log INFO "执行命令:cp -r $core_dir/src/algo $frame_dir/src/ 合并算法模块"
+cp -r $core_dir/src/algo $frame_dir/src/
+
+log INFO "执行命令:cp -r $core_dir/config/* $frame_dir/config/ 合并配置文件"
+cp -r $core_dir/config/* $frame_dir/config/
+
+
+# 修改spark_submit_modified的文件权限 用readlink获取真实路径防止提权
+spark_submit_modified=$frame_dir/script/spark-submit
+[[ -L "$spark_submit_modified" ]] && { log ERROR "Refuse symlink: $spark_submit_modified 不允许对符号链接进行权限修改" >&2; exit 1; }
 
 # 修改spark_submit_modified 中的hijack.pyc路径
 hijack_path=$frame_dir/src/hijack.pyc
-cat $spark_submit_modified | grep "hijack_path="
+log INFO "开始自动配置${spark_submit_modified}文件中的hijack_path路径..."
+log INFO "原始hijack.pyc文件路径:`cat $spark_submit_modified | grep "hijack_path=" | sed 's/^[[:space:]]*//; s/[[:space:]]*$//'`"
 sed -i "s|hijack_path=\"\"|hijack_path=\"${hijack_path}\"|g" "$spark_submit_modified"
-# 显示修改后的路径
-cat $spark_submit_modified | grep "hijack_path="
-chmod +x $spark_submit_modified
+log INFO "更新后的hijack.pyc文件路径:`cat $spark_submit_modified | grep "hijack_path=" | sed 's/^[[:space:]]*//; s/[[:space:]]*$//'`"
 
+# 最小化spark_submit_modified的文件权限 不再允许写操作
+log INFO "修改$spark_submit_modified的文件权限为550"
+chmod 550 -- "$(readlink -e -- "$spark_submit_modified")"
 
+# 替换spark-submit脚本
+spark_submit_link=$SPARK_HOME/bin/spark-submit
+original_spark_submit_file=spark_submit_link
+log INFO "将软件所使用的spark-submit软链接到SPARK_HOME/bin/spark-submit"
 # 如果spark-submit不存在则直接创建软链接
 if [ -L "$spark_submit_link" ]; then
-  echo -e "\n$spark_submit_link 是一个已存在的软链接"
-  ls -l $spark_submit_link
-  echo "即将对软链接进行刷新"
+  log INFO "${spark_submit_link}是一个已存在的软链接`ls -l $spark_submit_link | cut -d' ' -f10-`"
+  log INFO "即将对软链接进行刷新..."
+
   original_spark_submit_file=`readlink -f $spark_submit_link`
   ln -snf $spark_submit_modified $spark_submit_link
-  echo "将$spark_submit_link链接到$spark_submit_modified"
+  log INFO "将$spark_submit_link链接到$spark_submit_modified"
+
 # 如果spark-submit存在则备份并重置spark-submit的软连接
 elif [ -f "$spark_submit_link" ]; then
-  echo -e "\n$spark_submit_link 是一个普通文件 进行备份"
+  log INFO "${spark_submit_link}是一个普通文件，进行备份"
   cp -r $spark_submit_link $SPARK_HOME/bin/spark-submit.original.backup
+
   original_spark_submit_file="$SPARK_HOME/bin/spark-submit.original.backup"
-  echo "文件已备份到$original_spark_submit_file"
+  log INFO "文件已备份到$original_spark_submit_file"
+
   ln -snf $spark_submit_modified $spark_submit_link
-  echo "将$spark_submit_link链接到$spark_submit_modified"
+  log INFO "将$spark_submit_link链接到$spark_submit_modified"
+
 else
-  echo -e "\n$spark_submit_link 不是软连接也不是文件 创建新的软链接"
-  ln -n $spark_submit_modified $spark_submit_link
-  echo "将$spark_submit_link链接到$spark_submit_modified"
+  log INFO "$spark_submit_link 不是软连接也不是文件 创建新的软链接"
+
+  ln -sn $spark_submit_modified $spark_submit_link
+  log INFO "将$spark_submit_link链接到$spark_submit_modified"
 fi
 
 # 展现修改的成果
-echo -e "\更新后$spark_submit_link的链接情况如下"
-ls -l $spark_submit_link
-echo -e "\n软链接刷新前原始spark_submit的位置如下"
-echo $original_spark_submit_file
-echo -e "\n修改后与原始文件的修改差异如下:"
-diff $spark_submit_link $original_spark_submit_file
+log INFO "更新后$spark_submit_link的链接情况如下:`ls -l $spark_submit_link | cut -d' ' -f10-`"
+log INFO "软链接刷新前原始spark_submit的位置如下: $original_spark_submit_file"
+
+log INFO "Success! OmniAdvisor2.0自动部署完成"
\ No newline at end of file
diff --git a/omniadvisor/src/omniadvisor/service/tuning_result/tuning_result_history.py b/omniadvisor/src/omniadvisor/service/tuning_result/tuning_result_history.py
index e28be27479af71305f85d7a5690f001c97fe119f..3520538bb621a70d552f22fc9cf495516b445e3e 100644
--- a/omniadvisor/src/omniadvisor/service/tuning_result/tuning_result_history.py
+++ b/omniadvisor/src/omniadvisor/service/tuning_result/tuning_result_history.py
@@ -95,7 +95,8 @@ class TuningResultHistory:
 
     @property
     def boost_percentage(self):
-        if not self.user_tuning_result:
+        # abs(self.user_tuning_result.runtime) <= 1e-12用于保证分母不为0
+        if not self.user_tuning_result or abs(self.user_tuning_result.runtime) <= 1e-12:
             return 0.0
         return round(
             (self.user_tuning_result.runtime - self.best_tuning_result.runtime) / self.user_tuning_result.runtime, 4