Re: kernel memory allocators

[Antti Kantee <pooka%cs.hut.fi@localhost>]

On Fri Jan 21 2011 at 11:51:08 +0100, Lars Heidieker wrote:
> > Do you have your changes available for review?
> 
> The kmem patch it includes:
> 
> - enhanced vmk caching in the uvm_km module not only for page sized
> allocation but low integer multiplies.
>   (changed for rump as well)
> - a changed kmem(9) implementation (using these new caches) (it's not
> using vmem see note below)
> - removed the malloc(9) bucket system and made malloc(9) a thin
> wrapper around kmem, just like in the yamt-kmem branch.
>   (changed vmstat to deal with non more existing symbol for the malloc 
> buckets)

With your changes you can probably also include kern_malloc.c in librump
instead of the host-relegated allocator in memalloc.c.  There were two
reasons why it wasn't done before:

1) i didn't want to guess an arbitrary size for kmem_map
2) too many subsystems relied on link sets for malloc types and i
   didn't want to add special handling for that

At least per cursory examination your patch seems to take care of
both issues.

-- 
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