Search notes:

DBMS_SHARED_POOL.SIZES

dbms_shared_pool.sizes(N) shows objects that occupy more than N kb memory in the shared pool.
This procedure prints the values using dbms_output. Thus, when using the procedure in SQL*Plus, output must be enabled with set serveroutput on.
An educated guess is that sizes selects from v$db_object_cache and v$sqlarea. 
set serveroutput on
begin
   sys.dbms_shared_pool.sizes(1000);
end;
/

See also

dbms_shared_pool

Index

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