I'v got a problem, the number of transaction in the system is increasing incredible fast, DBW and SMON takes too much memory:
124M 6.0% ora_dbw0_WWW2
155M 7.6% ora_smon_WWW2
12:42:28> select value from v$sysstat where name='user rollbacks';
VALUE = 12507118
12:59:03> select value from v$sysstat where name='user rollbacks';
VALUE = 12510066
No users who makes any rollbacks!
Is anybody knows how to deside this problem?