Re: slab-alignment-rework.patch in -mc

[Manfred Spraul]

Andrea Arcangeli wrote:

> On Tue, Apr 20, 2004 at 12:24:23AM -0700, Andrew Morton wrote:
>  
>
> > So I do think that we should either make "align=0" translate to "pack them
> > densely" or do the big sweep across all kmem_cache_create() callsites.
> >    
>
> agreed.
>  
What about this proposal:
SLAB_HWCACHE_ALIGN clear: align to max(sizeof(void*), align).
SLAB_HWCACHE_ALIGN set: align to max(cpu_align(), align).

cpu_align is the cpu cache line size - either runtime or compile time.

Or are there users that want an alignment smaller than sizeof(void*)?
--
   Manfred

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