Anj Adu <fotographs@gmail.com> writes:
> For a 64 bit machine..does the higher shared buffer setting really
> offer a significant improvement over a 32 bit lower setting coupled
> with linux caching ? Is the postgres shared buffer algorithm superior
> to the linux caching algorithm to favor a switch to 64 bit
There are different schools of thought about that, but in any case the
difference is not likely to be large. If you want to discuss it,
pgsql-performance would be a better forum.
regards, tom lane