sample_io (catio.sql) question

[efrijters]

Hi guys,

I'm trying to get some info on the IO per object, so I installed catio.sql.
Next I ran "exec sample_io(5,60);" a few times at busy and not-so-busy moments. But when I look at the result-view "IO_PER_OBJECT", I always get the same result:

SQL> select * from sys.io_per_object;

NAME             PARTITION_NAME  KIND             IO_TYPE              BLOCKS_READ
---------------- --------------- ---------------- -------------------- -----------
C_TS#                            CLUSTER          sequential                     1

Database: 8.1.7.0.0 on Wi(n)dows 2000 Adv.Server
Buffer cache:

SQL> select * from vw_ideal_buffer_cache ;

DATE     BUFFER_POOL        CURRENT      IDEAL
-------- --------------- ---------- ----------
...
13-04-04 DEFAULT               8192       7256

I think I'm following the correct procedure... How must I interpret this info?

I hope someone can help me...