diff --git a/study/kernel/01-process/05-schedule/09-tuning/README.md b/study/kernel/01-process/05-schedule/09-tuning/README.md
index 8cac06a..20dc441 100644
--- a/study/kernel/01-process/05-schedule/09-tuning/README.md
+++ b/study/kernel/01-process/05-schedule/09-tuning/README.md
@@ -2409,7 +2409,7 @@ static void check_preempt_wakeup(struct rq *rq, struct task_struct *p, int wake_
 ##15.10	NONTASK_CAPACITY
 -------
 
-##15.11	TTWU_QUEU
+##15.11	TTWU_QUEUE
 -------
 
 
@@ -2471,6 +2471,8 @@ static void balance_runtime(struct rt_rq *rt_rq)
 
 [从几个问题开始理解CFS调度器](http://ju.outofmemory.cn/entry/105407)
 
+[内核参数说明](https://www.cnblogs.com/tolimit/p/5065761.html)
+
 
 > 关于 `waker` 和 `wakee`
 >