buffer pool 有最多8个子latch保护
SQL> set linesize 200
SQL> select addr,LATCH#,LEVEL#,CHILD#,NAME from v$latch_children where name='buffer pool';
ADDR LATCH# LEVEL# CHILD# NAME
-------- ---------- ---------- ---------- ----------------------------------------------------------------
2CD760A8 146 1 8 buffer pool
2CD75F78 146 1 7 buffer pool
2CD75E48 146 1 6 buffer pool
2CD75D18 146 1 5 buffer pool
2CD75BE8 146 1 4 buffer pool
2CD75AB8 146 1 3 buffer pool
2CD75988 146 1 2 buffer pool
2CD75858 146 1 1 buffer pool
已选择8行。