Automatic tuning of postgresql.conf parameters?

["Mattias Kregert" <mattias(at)kregert(dot)se>]

I have noticed that a lot of people have a hard time finding out how to tune postgresql to suit their hardware.

 

Are there any tools for automatic tuning of the parameters in postgresql.conf? A simple program running some benchmarks on cpu & disk speed, checking the amount of ram and so on and then suggesting random/seq access cost, vacuum cust, sortmem/cache settings and so on? A pg_tune utility?

 

Maybe it could even look at runtime statistics/usage logs and help set the number of shared buffers, chekpoints, autovacuum...?

 

/Mattias (using the default config)