About the log size

Now I am creating apparmor's profiles for some big system software, and I
found that there are so many log entry in the log file /var/log/messages,
like

Jul 11 02:43:25 nanjing kernel: audit(1184147005.032:617870383):
PERMITTING mrw access to /var/opt/teradata/tdtemp/pdesegments3.dat
(actmain(20792) profile null-complain-profile active null-complain-profile)
Jul 11 02:43:25 nanjing kernel: audit(1184147005.036:617870384):
PERMITTING mrw access to /var/opt/teradata/tdtemp/pdesegments3.dat
(actmain(20792) profile null-complain-profile active null-complain-profile)


and it will cost all my disk space till I complete the test process, so
where can I specify the log level or some other to remove the garbage
information.