Re: Multiple sorts in a query

On Tue, 2009-05-19 at 09:33 -0700, Chuck McDevitt wrote:

> > Is it possible that Solaris's default malloc isn't appropriate for
> > repeated use in complex queries that use multiple sorts?
> > http://developers.sun.com/solaris/articles/multiproc/multiproc.html
> > and recent OpenSolaris bug reports.
> 
> Solaris default malloc always uses sbrk(), and never ever tried to
> reduce the sbrk point.
> 
> If you want a malloc that uses mmap, there is an non-default malloc
> that does that (libumem or something?)

OK, thanks Chuck. Doesn't sound good.

-- Simon Riggs           www.2ndQuadrant.comPostgreSQL Training, Services and Support