lkml.org 
[lkml]   [2005]   [Dec]   [13]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: [PATCH] Cpuset: rcu optimization of page alloc hook
Eric wrote:
> struct kmem_cache itself will be about 512*8 + some bytes
> then for each cpu a 'struct array_cache' will be allocated (count 128 bytes

Hmmm ... 'struct array_cache' looks to be about 6 integer words,
so if that is the main per-CPU cost, the minimal cost of a slab
cache (once created, before use) is about 24 bytes per cpu.

But whether its 24 or 128 bytes per cpu, that's a heavier weight
hammer than is needed here.

Time for me to learn more about rcu.

Thanks for raising this issue.

--
I won't rest till it's the best ...
Programmer, Linux Scalability
Paul Jackson <pj@sgi.com> 1.925.600.0401
-
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: 2005-12-13 23:26    [from the cache]
©2003-2011 Jasper Spaans