When will the x$tables or gv$views get refreshed or reloaded

I am asking this question because, when i flushed shared pool i still data related to my sqlid in gv$sql_monitor.

SQL> select count(*) from gv$sql_monitor where sql_id='xxxxxxxx';

 COUNT(*)
----------
    16
1 row selected.

SQL> alter system flush shared_pool;

System altered.

SQL> select count(*) from gv$sql_monitor where sql_id='xxxxxxxxxxxxxxxx';

 COUNT(*)
----------
    16
1 row selected.

My understanding was that most the gv$ views will be flushed, is there way to check when this gv$ will be flushed or reloaded. ?