若两个会话上持续编译相同的Procedure，library cache lock

若两个会话上持续编译相同的Procedure，则等待事件为？

SQL> select sid,event,p1,p1raw,p2,p3 from v$session where event not like '%message%';

       SID EVENT				  P1 P1RAW		      P2	 P3
---------- ------------------------------ ---------- ---------------- ---------- ----------
      1627 library cache lock		  2171998096 0000000081760F90 2196963904	301
      1628 library cache lock		  2171998096 0000000081760F90 2196895944	301
      1631 Streams AQ: qmn slave idle wai	   0 00 		       0	  0
	   t

      1633 Streams AQ: qmn slave idle wai	   0 00 		       0	  0
	   t

      1634 Streams AQ: waiting for time m	   0 00 		       0	  0
	   anagement or cleanup tasks


       SID EVENT				  P1 P1RAW		      P2	 P3
---------- ------------------------------ ---------- ---------------- ---------- ----------
      1637 Streams AQ: qmn slave idle wai	   0 00 		       0	  0
	   t

      1641 Streams AQ: qmn coordinator id	   0 00 		       0	  0
	   le wait

      1649 smon timer				 300 000000000000012C	       0	  0
      1651 log file parallel write		   1 0000000000000001	      31	  1
      1655 pmon timer				 300 000000000000012C	       0	  0

10 rows selected.


SQL> select user_name,
       kglnaobj  "Owner",
       kgllkses  saddr,
       kgllkreq  req,
       kgllkmod  mod,
       kglnaobj  object
  from x$kgllk lock_a
 where kgllkmod > 0
   and exists (select lock_b.kgllkhdl
          from x$kgllk lock_b
         where lock_a.kgllkhdl = lock_b.kgllkhdl
           and kgllkreq > 0)
  2    3    4    5    6    7    8    9   10   11   12   13  ;

SQL> /

USER_NAME	     Owner		  SADDR 		  REQ	     MOD OBJECT
-------------------- -------------------- ---------------- ---------- ---------- ------------------------------------------------------------
TEST		     LIB_TEST		  0000000089917730	    0	       3 LIB_TEST
TEST		     LIB_TEST		  00000000899161C8	    0	       3 LIB_TEST


SQL> select saddr,sid,username,event,p1,p1raw,p2,p3 from  v$session where event='library cache lock';

SADDR			SID USERNAME			   EVENT				  P1 P1RAW		      P2	 P3
---------------- ---------- ------------------------------ ------------------------------ ---------- ---------------- ---------- ----------
00000000899161C8       1627 TEST			   library cache lock		  2171998096 0000000081760F90 2196963904	301
0000000089917730       1628 TEST			   library cache lock		  2171998096 0000000081760F90 2196895944	301