Greg,
> You have wal_buffer set to 2048? That's pretty radical compared to the
> default of just 5. Your tests shows you had to go to this large a value
> to see the maximum effect?
No, take a look at the graph. It looks like we got the maximum effect
from a wal_buffers somewhere between 64 and 256. On the DBT2 runs, any
variation less than 5% is just noise.
--
--Josh
Josh Berkus
Aglio Database Solutions
San Francisco