diff --git a/src/gausskernel/cbb/bbox/bbox_threads.cpp b/src/gausskernel/cbb/bbox/bbox_threads.cpp
index a8ce5e514..e303f86e3 100644
--- a/src/gausskernel/cbb/bbox/bbox_threads.cpp
+++ b/src/gausskernel/cbb/bbox/bbox_threads.cpp
@@ -101,8 +101,14 @@ s32 BBOX_CloneRun(u32 uFlags, s32 (*pFn)(void*), void* pArg, ...)
 }
 
 /*
- * get count of thread
- */
+function name: BBOX_GetTaskNumber
+description: When get a path to specific process, this function will return count of threads below it.
+arguments: An pointer of type char*, including a path to specific process.
+return value: An integer that indicates the count of threads below specific process.
+note: none
+date: 2022/8/3
+contact tel: 18720816902
+*/
 s32 BBOX_GetTaskNumber(char* szTaskPath)
 {
     struct kernel_stat stProcSB = {0};
@@ -138,6 +144,7 @@ s32 BBOX_GetTaskNumber(char* szTaskPath)
 /*
  * get thread pid
  */
+
 s32 BBOX_GetTaskId(struct TASK_ATTACH_INFO* pstTaskInfo, s32 iSize, char* szTaskPath)
 {
     s32 iProc = -1;