as my known, FreeBSD implements this feature called superpage, it's similar with Solaris, so is it enabled in default? or any default parameter need to be set?
Many thank Hsien-Wen On Wed, Oct 20, 2010 at 10:10 PM, Tom Lane <t...@sss.pgh.pa.us> wrote: > Robert Haas <robertmh...@gmail.com> writes: > > On Tue, Oct 19, 2010 at 11:30 PM, daveg <da...@sonic.net> wrote: > >> On Wed, Oct 20, 2010 at 04:08:37PM +1300, Mark Kirkwood wrote: > >>> Heh - provided you specify > >>> SHM_HUGETLB > >>> in the relevant call that is :-) > > >> I had a patch for this against 8.3 that I could update if there is any > >> interest. I suspect it is helpful. > > > I think it would be a good feature. Of course, we would need > > appropriate documentation, and some benchmarks showing that it really > > works. > > I believe that for the equivalent Solaris option, we just automatically > enable it when available. So there'd be no need for user documentation. > However, I definitely *would* like to see some benchmarks proving that > the change actually does something useful. I've always harbored the > suspicion that this is just a knob to satisfy people who need knobs to > frob. > > regards, tom lane > > -- > Sent via pgsql-hackers mailing list (pgsql-hackers@postgresql.org) > To make changes to your subscription: > http://www.postgresql.org/mailpref/pgsql-hackers >
