Re: FreeBSD page size (was Re: The results of my

On Wed, 3 Sep 2003, Vivek Khera wrote:

> >>>>> "SC" == Sean Chittenden <sean(at)chittenden(dot)org> writes:
>
> >> I need to step in and do 2 things:
> SC> Thanks for posting that. Let me know if you have any questions while
> SC> doing your testing. I've found that using 16K blocks on FreeBSD
> SC> results in about an 8% speedup in writes to the database, fwiw.
>
> Just double checking: if I do this, then I need to halve the
> parameters in postgresql.conf that involve buffers, specifically,
> max_fsm_pages and shared_buffers. I think max_fsm_pages should be
> adjusted since the number of pages in the system overall has been
> halved.
>
> Anything else that should be re-tuned for this?

Yes, effective_cache_size as well is measured in pgsql blocks.