How to count I/O number in an environment?

Hi,
In my application, I operate on several bdbs under an environment dbenv.
Now, I want to count the I/O times of all databases for the environment. Can I calculate it from dbenv->stat_print(DB_STAT_ALL) ? I cannot find much useful information in it.
Regards,
Joe

Hi Joe,
You can use % db_stat -m [-h environment directory], in order to display basic cache statistics (having here the numbers of I/O and hit rate).
% db_stat -d database - will give you page-fill factors.
% db_stat -L - will return the log files I/O.
Inside your application you can use DB_ENV->memp_stat_print/DB_ENV->log_stat_print methods.
Bogdan Coman

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