Hit Ratio in Oracle 10g

From Oracle 10g, there is no need to run huge scripts to get the hit ratios. You can query the v$sysmetric view to get the hit ratios.

SQL> select * from gv$sysmetric
where metric_name like '%Ratio%'
and intsize_csec in (Select max(intsize_csec) from gv$sysmetric where inst_id =&id)
and inst_id = &&id;

Thanks