lkml.org 
[lkml]   [2007]   [Apr]   [4]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: [patch 07/20] Allow paravirt backend to choose kernel PMD sharing
Christoph Lameter wrote:
> Acked-by: Christoph Lameter <clameter@sgi.com>
>
> for all thats worth since I am not a i386 specialist.
>
> How much of the issues with page struct sharing between slab and arch code
> does this address?
>

I haven't been following that thread as closely as I should be, so I
don't have an answer. I guess the interesting thing in this patch is
that it only uses the pmd cache for usermode pmds (which are
pre-zeroed), and normal page allocations for kernel pmds. Also, if the
kernel pmds are unshared, the pgds are page-sized, so its not really
making good use of the pgd cache.

J
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/

\
 
 \ /
  Last update: 2007-04-05 02:47    [W:0.955 / U:0.600 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site