Performance issue 11g.2

Question

hi all ,
oracle 11g.2 in rac with asm in linux 5
vender send email :
With regard to the mediation process we have identified some performance improvements which we feel will speed up the updation of the mediation DB
i see the alert log in found
ALTER SYSTEM SET job_queue_processes=1000 SCOPE=BOTH SID='*';
i read in this parameter this will be allow 1000 job to run in corcurrent
so this will be decrease the permormance ???right??correct me if i am wrong

Answer 1

thanks dear for your time and support , but the same issue ???
SQL> SELECT USERNAME, SQL_TEXT, TIMESTAMP
2 FROM DBA_AUDIT_TRAIL
3 WHERE SQL_TEXT LIKE 'ALTER SYSTEM%';
no rows selected
SQL> SELECT USERNAME, SQL_TEXT, TIMESTAMP
2 FROM DBA_AUDIT_TRAIL
3 WHERE ACTION_NAME='ALTER SYSTEM' ;
no rows selected
SQL> SELECT USERNAME, SQL_TEXT, TIMESTAMP
2 FROM DBA_AUDIT_TRAIL
3 WHERE ACTION_NAME like 'ALTER SYSTEM%';
no rows selected
SQL> SELECT USERNAME, SQL_TEXT, TIMESTAMP
2 FROM DBA_AUDIT_TRAIL
3 WHERE ACTION_NAME like '%ALTER SYSTEM%';
no rows selected
SQL>
your cooperations with me will be a high appreciated.