Re: Multiple sorts in a query - Mailing list pgsql-hackers

From Zdenek Kotala
Subject Re: Multiple sorts in a query
Date
Msg-id 1242764394.1252.24.camel@localhost
Whole thread Raw
In response to Re: Multiple sorts in a query  (Chuck McDevitt <cmcdevitt@greenplum.com>)
Responses Re: Multiple sorts in a query  (Simon Riggs <simon@2ndQuadrant.com>)
List pgsql-hackers
Chuck McDevitt píše v út 19. 05. 2009 v 09:33 -0700:

> 
> 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?)
> 

There are severals memory allocator on Solaris. You can choose what you
need. See

mapalloc (it uses mmap insted of srbk)
mtmalloc (optimized fro multi threaded apps)
mumem_alloc
watchmalloc
bsdmalloc
maybe more.

What I heart is that standard malloc is not good, but it is still here
for compatibility reason with old application which depends on some
functionality.
Zdenek 



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