Server load statistics

Hallöchen!

I need statistics about the PG server load. At the moment, I use
for this

SELECT tup_returned + tup_fetched + tup_inserted + tup_updated +
tup_deleted FROM pg_stat_database WHERE datname='mydb';

However, the figures are absurdly high (> 100.000 rows per second).
If a "row" is one dataset (one user account, one blog entry, one
comment etc), I expect two or three orders of magnitude less. Is my
SQL statement nevertheless a good way to measure how busy the server
is?

Tschö,
Torsten.

--
Torsten Bronger, aquisgrana, europa vetus
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