Subject: Re: metadata cache and memory fragmentation
To: Erik E. Fair <fair@netbsd.org>
From: Andrey Petrov <petrov@netbsd.org>
List: tech-kern
Date: 05/14/2004 14:57:00
On Fri, May 14, 2004 at 01:58:16PM -0700, Erik E. Fair wrote:
> It seems we have some choices to make:
> 
> 1. try and prevent the RAM fragmentation from happening in the first place.
> 
> 2. clean up fragmentation when RAM is freed.
> 
> If we go the second route (and that's where I bet we'll go), then we 
> have two choices for that:
> 
> 1. coalesce RAM when it is freed.
> 
> 2. coalesce RAM with a kernel thread during idle time, sometime after 
> it is freed.
> 

3.  coalesce RAM on-demand

	Andrey