diff --git a/README.md b/README.md
index 6b9b6ffcd9e9e0672e48230926be3de500dbcab1..5d05fc283ed5d050f3b338bad0d428a5544e0835 100644
--- a/README.md
+++ b/README.md
@@ -40,21 +40,39 @@ LSM tree 是许多 KV型或日志型数据库所依赖的核心实现，例如Bi
 ## RoadMap
 1. 1.0.0 版本, 完成 util 相关的内容
 
-
 | 功能模块                          | 完成人             | 进度   |
 |-------------------------------|-----------------|------|
-| Arena (Memory Management)     | wangboo         |      |
+| Arena (Memory Management)     | wangboo         | 100% |
 | bloom                         | fengyang        | 10%  |
 | Cache                         | colagy          |      |
 | Coding (Primitive Type SerDe) | colagy          |      |
 | Comparator                    | fengyang        | 90%  |
-| CRC                           | wangboo、lxd5866 |      |
+| CRC                           | wangboo、lxd5866 | 100% |
 | Env                           | lxd5866         |      |
 | filter_policy                 | fengyang        | 10%  |
 | Hash                          | fengyang        | 100% |
 | Histgram                      | kazeseiriou     | 100% |
-| loging                        |      |      |
+| loging                        |                 |      |
 | MutexLock                     | kazeseiriou     | 100% |
 | Random                        | colagy          |      |
 | Status                        | fengyang        | 100% |
-| Slice                         | wangboo         |      |
\ No newline at end of file
+| Slice                         | wangboo         | 100% |
+
+2. 1.1.0 版本, 完成基础零部件
+   
+| 功能模块             | 完成人 | 进度  |
+|------------------|-----|-----|
+| skiplist         | 未认领 |     |
+| MemTableIterator | 未认领 |     |
+| MemTable         | 未认领 |     |
+| LogReader        | 未认领 |     |
+| LogWriter        | 未认领 |     |
+| TableCache       | 未认领 |     |
+| FileMetaData     | 未认领 |     |
+| VersionEdit      | 未认领 |     |
+| VersionSet       | 未认领 |     |
+| ReadOptions      | 未认领 |     |
+| WriteOptions     | 未认领 |     |
+| WriteBatch       | 未认领 |     |
+
+3. 1.2.0 版本, 完成核心组件
\ No newline at end of file
diff --git a/src/util/arena.rs b/src/util/arena.rs
index 611053b5857101b48ef6e2666fa008335fc84bdf..3f46dcb401207e891698b81eb28388c407d88531 100644
--- a/src/util/arena.rs
+++ b/src/util/arena.rs
@@ -58,6 +58,7 @@ impl Arena {
         return self.allocate_fallback(bytes, align);
     }
 
+    #[inline]
     pub fn memory_usage(&self) -> usize {
         self.memory_usage
     }
diff --git a/src/util/crc.rs b/src/util/crc.rs
index c0f8b349616c92b13baf907332fd22a3035446a0..cf7918b7c99edf29235bf781513f328179943f9f 100644
--- a/src/util/crc.rs
+++ b/src/util/crc.rs
@@ -240,6 +240,8 @@ const K_STRIDE_EXTENSION_TABLE3: [u32; 256] = [
 /// 可以被计算 crc 值的特质
 /// 默认实现了 &[T], Vec[T], Slice, &str, String
 pub trait AsCrc {
+
+    #[inline]
     fn as_crc(&self) -> u32 {
         self.as_crc_extend(0)
     }
diff --git a/src/util/slice.rs b/src/util/slice.rs
index c9ddf7f4f55da1022bd1500d915c33bf515de5b3..7c0bbb38755b02d50b36846cd797b9d369fbcd4e 100644
--- a/src/util/slice.rs
+++ b/src/util/slice.rs
@@ -14,6 +14,7 @@ extern {
 
 impl Default for Slice {
     /// 构造一个空的 Slice
+    #[inline]
     fn default() -> Self {
         Self {
             data: Vec::new()
@@ -24,6 +25,7 @@ impl Default for Slice {
 impl Slice {
 
     /// 从 &mut [u8] 转到 Slice, 这里存在内存拷贝开销
+    #[inline]
     pub fn from_buf(buf: &[u8]) -> Self {
         Self {
             data: buf.to_owned()
@@ -95,6 +97,7 @@ impl<'a> Slice {
 
 impl From<Slice> for String {
     /// 将 Slice 内数据的所有权移交给 String
+    #[inline]
     fn from(s: Slice) -> Self {
         unsafe {
             String::from_utf8_unchecked(s.data)
@@ -103,12 +106,14 @@ impl From<Slice> for String {
 }
 
 impl From<Slice> for Vec<u8> {
+    #[inline]
     fn from(s: Slice) -> Self {
         s.data
     }
 }
 
 impl <R: AsRef<str>> From<R> for Slice {
+    #[inline]
     fn from(r: R) -> Self {
         Self {
             data: Vec::from(r.as_ref())
@@ -118,6 +123,7 @@ impl <R: AsRef<str>> From<R> for Slice {
 
 impl PartialEq for Slice {
     /// 判断两个 Slice 是否相同
+    #[inline]
     fn eq(&self, other: &Self) -> bool {
         return self.size() == other.size() && unsafe {
             memcmp(
@@ -158,6 +164,7 @@ impl core::ops::Index<usize> for Slice {
     type Output = u8;
 
     /// 获取某个下标的数据
+    #[inline]
     fn index(&self, index: usize) -> &Self::Output {
         assert!(index < self.size());
         &(**self)[index]
@@ -168,6 +175,7 @@ impl Deref for Slice {
     type Target = [u8];
 
     /// Slice 解引用到 &[u8]
+    #[inline]
     fn deref(&self) -> &Self::Target {
             &*self.data
     }