lkml.org 
[lkml]   [2007]   [Mar]   [20]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: [RFC] SLAB : NUMA cache_free_alien() very expensive because of virt_to_slab(objp); nodeid = slabp->nodeid;
On Tue, 20 Mar 2007, Eric Dumazet wrote:

> I understand we want to do special things (fallback and such tricks) at
> allocation time, but I believe that we can just trust the real nid of memory
> at free time.

Sorry no. The node at allocation time determines which node specific
structure tracks the slab. If we fall back then the node is allocated
from one node but entered in the node structure of another. Thus you
cannot free the slab without knowing the node at allocation time.

-
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: 2007-03-21 01:21    [W:0.498 / U:0.072 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site