Postgres Performance -- page size

[Richard]

Hi,

I am trying to tuning up the performance of PSQL. I have tried
changing the cache size. I found that the default page size if 8k, I
am just wondering has any one know, if page size if biger the better
or smaller the better, what is a good number of page size? My OS is
red hat 8, and the OS page size is 4K. So should I change PSQL page
size to 4k or to 16K, 32K?

Thanks,

Richard

[rstp]

Richard wrote:

Hi,

I am trying to tuning up the performance of PSQL. I have tried
changing the cache size. I found that the default page size if 8k, I default effective_cache_size is 1000 * 8KB - is this what you mean?
According to the postgresql.conf guide, you can increase it to about 25%
of available memory. There's some new documentation on configuring the
database at
http://www.varlena.com/varlena/Gener...ed_conf_e.html
and it is easy to follow. Check it out.

am just wondering has any one know, if page size if biger the better
or smaller the better, what is a good number of page size? My OS is
red hat 8, and the OS page size is 4K. So should I change PSQL page
size to 4k or to 16K, 32K?

Thanks,

Richard

Ron