data is off by 1% between v$buffer_pool_statistics and v$systat, WHY?

[jmodic]

[QUOTE][i]Originally posted by sambavan [/i]
[B]I wonder where each gather their data from? [/B][/QUOTE]

You can find out easily by querying the view V$FIXED_VIEW_DEFINITION.

SELECT * FROM v$fixed_view_definition
WHERE UPPER(view_name) IN ('V$SYSSTAT', 'V$BUFFER_POOL_STATISTICS');

hth,