Re: [PATCH] kernel: use kcalloc instead kmalloc/memset

[Stephen Pollei]

On 8/5/05, Christoph Lameter <christoph@xxxxxxxxxxx> wrote:

> Hmm. If we had kcmalloc then we may be able to add a zero bit to the slab
> allocator. If we would obtain zeroed pages for the slab then we may skip
> zeroing of individual entries. However, the cache warming effect of the
> current zeroing is then not occurring. Not sure if this would make sense
> but this is a possible optimization if we had kcmalloc.

Well there is kzalloc and kcalloc. I just thought a safe non-zeroing
version would be nice.
You could warm the cache with prefetch, but you'd need to profile the
diferent cases to see what is worth doing and what isn't.


-- 
http://dmoz.org/profiles/pollei.html
http://sourceforge.net/users/stephen_pollei/
http://www.orkut.com/Profile.aspx?uid=2455954990164098214
http://stephen_pollei.home.comcast.net/
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/