Andreas Pflug <pgadmin(at)pse-consulting(dot)de> writes:
> Tom Lane wrote:
>> I don't think any test that we could build would be as useful as simply
>> trying the different settings with an installation's real workload.
> Benchmarking the real workload isn't always so easy, and might be quite
> time consuming to obtain meaningful values.
The concern was about whether people might be missing an easy speedup of
2x or more. I don't think it'd be that hard to tell ;-) if one setting
is an order of magnitude better than another for your workload. If
there's not an obvious difference then you haven't wasted much effort
checking.
regards, tom lane