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Date: Mon, 14 Feb 2005 20:05:21 -0500
From: David Schultz <das@FreeBSD.ORG>
To: Andrew MacIntyre <andymac@bullseye.apana.org.au>,
	Jason Henson <jason@ec.rr.com>, freebsd-hackers@FreeBSD.ORG
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Subject: Re: malloc vs ptmalloc2
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On Mon, Feb 14, 2005, John-Mark Gurney wrote:
> David Schultz wrote this message on Mon, Feb 14, 2005 at 08:04 -0500:
> > Right, databases, language runtimes, and the small set of other
> > applications for which it really matters usually have their own
> > special-purpose allocators.  I was counting on that when I said
> > that replacing malloc() is unlikely to make a big difference.
> > (One could argue, of course, that it's unfortunate that
> > applications need to do so.)
> 
> Hmmm, maybe we should bring the zone API into userland? :)  It'd be
> nice to have some of the features, like the ctor/dtor's...

That's essentially what Solaris did:
http://www.usenix.org/event/usenix01/bonwick.html