Trace1

Question

On windows Oracle server in dedicated mode-
I have session 1 using sqlplus as sys
I have session 2 using sqlplus as sys and traced the first session using EXECUTE DBMS_SUPPORT.start_trace_in_session(SID, SERIAL, TRUE, TRUE);
- I execute select name from v$database in session 1.
- Then in session I stop the trace.
- I exit from session 1
Using tkprof I create output file from the trace. The output file has select name from v$database and other OEM sqls logged which I did not issue. Where are the other OEM SQL's comming from and why are they logged in the trace of session 1?
I expected to see only 1 SQL issued in session 1. Can you help understand this behaviour.
Edited by: rman_guru on Aug 5, 2011 3:57 AM

Answer 1

By OEM i meant, i see multiple SQL's with tag /* OracleOEM */
Following is part of tkprof output(though I issued only 1 SQL):
And at the bottom of tkprof it has a summary:
1 session in tracefile.
24 user SQL statements in trace file.
14 internal SQL statements in trace file.
38 SQL statements in trace file.
11 unique SQL statements in trace file.
2777 lines in trace file.
24 user SQL statement (!!!) I issued only 1 SQL (this was login-session1, start trace from session2, run 1 sql in session1, sopped trace from session2, logout from session1)
select s.sid session_id, s.serial# serial_number
from
v$session s where s.audsid=userenv('SESSIONID')
call     count       cpu    elapsed       disk      query    current        rows
Parse       12      0.01       0.58          0          0          0           0
Execute     12      0.00       0.06          0          0          0           0
Fetch       12      0.00       0.15          0          0          0         228
total       36      0.01       0.79          0          0          0         228
Misses in library cache during parse: 0
Optimizer goal: RULE
Parsing user id: SYS
/* OracleOEM */
SELECT event, count(1)
  FROM v$session_wait
WHERE wait_time = 0
   AND event NOT IN
      ('ARCH random i/o',
       'ARCH sequential i/o',
       'KXFX: execution message dequeue - Slaves',
       'LGWR random i/o',
       'LGWR sequential i/o',
       'LGWR wait for redo copy',
       'Null event',
       'PL/SQL lock timer',
       'PX Deq Credit: need buffer',
       'PX Deq: Execute Reply',
       'PX Deq: Execution Msg',
       'PX Deq: Index Merge Close',
       'PX Deq: Index Merge Execute',
       'PX Deq: Index Merge Reply',
       'PX Deq: Join ACK',
       'PX Deq: Msg Fragment',
       'PX Deq: Par Recov Change Vector',
       'PX Deq: Par Recov Execute',
       'PX Deq: Par Recov Reply',
       'PX Deq: Parse Reply',
       'PX Deq: Table Q Normal',
       'PX Deq: Table Q Sample',
       'PX Deq: Txn Recovery Reply',
       'PX Deq: Txn Recovery Start',
       'PX Deque wait',
       'PX Idle Wait',
       'Queue Monitor Shutdown Wait',
       'Queue Monitor Slave Wait',
       'Queue Monitor Wait',
       'RFS random i/o',
       'RFS sequential i/o',
       'RFS write',
       'SQL*Net message from client',
       'SQL*Net message from dblink',
       'STREAMS apply coord waiting for slave message',
       'STREAMS apply coord waiting for some work to finish',
       'STREAMS apply slave idle wait',
       'STREAMS capture process filter callback wait for ruleset',
       'STREAMS fetch slave waiting for txns',
       'WMON goes to sleep',
       'async disk IO',
       'client message',
       'control file parallel write',
       'control file sequential read',
       'control file single write',
       'db file single write',
       'db file parallel write',
       'dispatcher timer',
       'gcs log flush sync',
       'gcs remote message',
       'ges reconfiguration to start',
       'ges remote message',
       'io done',
       'jobq slave wait',
       'lock manager wait for remote message',
       'log file parallel write',
       'log file sequential read',
       'log file single write',
       'parallel dequeue wait',
       'parallel recovery coordinator waits for cleanup of slaves',
       'parallel query dequeue',
       'parallel query idle wait - Slaves',
       'pipe get',
       'pmon timer',
       'queue messages',
       'rdbms ipc message',
       'recovery read',
       'single-task message',
       'slave wait',
       'smon timer',
       'statement suspended, wait error to be cleared',
       'unread message',
       'virtual circuit',
       'virtual circuit status',
       'wait for activate message',
       'wait for transaction',
       'wait for unread message on broadcast channel',
       'wait for unread message on multiple broadcast channels',
       'wakeup event for builder',
       'wakeup event for preparer',
       'wakeup event for reader',
       'wakeup time manager')
GROUP BY event
call     count       cpu    elapsed       disk      query    current        rows
Parse        8      0.20       9.95          0          0          0           0
Execute      8      0.00       0.02          0          0          0           0
Fetch        8      0.00       0.00          0          0          0           0
total       24      0.20       9.97          0          0          0           0
Misses in library cache during parse: 0
Optimizer goal: RULE
Parsing user id: SYS
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