login
Login / Register
Header Space

 
 

Home » Mailing list archives » linux-kernel » 2008 » March » 3

Re: [rfc][patch 1/3] slub: fix small HWCACHE_ALIGN alignment

Score:
Previous message: [thread] [date] [author]
Next message: [thread] [date] [author]
[view in full thread]
From: Christoph Lameter <clameter@...>
To: Pekka Enberg <penberg@...>
Cc: Nick Piggin <npiggin@...>, <netdev@...>, Linux Kernel Mailing List <linux-kernel@...>, <yanmin_zhang@...>, David Miller <davem@...>, Eric Dumazet <dada1@...>
Subject: Re: [rfc][patch 1/3] slub: fix small HWCACHE_ALIGN alignment
Date: Monday, March 3, 2008 - 5:32 pm

On Mon, 3 Mar 2008, Pekka Enberg wrote:


Well the guarantee can only be exploited if you would check the cacheline 
sizes and the object size from the code that creates the slab cache. 
Basically you would have to guestimate what the slab allocator is doing.

So the guarantee is basically meaningless. If the object is larger than a 
cacheline then this will never work.

--
Previous message: [thread] [date] [author]
Next message: [thread] [date] [author]
Messages in current thread:
[rfc][patch 1/3] slub: fix small HWCACHE_ALIGN alignment, Nick Piggin, (Mon Mar 3, 5:34 am)
Re: [rfc][patch 1/3] slub: fix small HWCACHE_ALIGN alignment, Christoph Lameter, (Mon Mar 3, 3:08 pm)
Re: [rfc][patch 1/3] slub: fix small HWCACHE_ALIGN alignment, Nick Piggin, (Mon Mar 3, 4:06 pm)
Re: [rfc][patch 1/3] slub: fix small HWCACHE_ALIGN alignment, Christoph Lameter, (Mon Mar 3, 4:10 pm)
Re: [rfc][patch 1/3] slub: fix small HWCACHE_ALIGN alignment, Nick Piggin, (Mon Mar 3, 4:17 pm)
Re: [rfc][patch 1/3] slub: fix small HWCACHE_ALIGN alignment, Christoph Lameter, (Mon Mar 3, 5:16 pm)
Re: [rfc][patch 1/3] slub: fix small HWCACHE_ALIGN alignment, Nick Piggin, (Tue Mar 4, 8:06 pm)
Re: [rfc][patch 1/3] slub: fix small HWCACHE_ALIGN alignment, David Miller, (Tue Mar 4, 8:10 pm)
Re: [rfc][patch 1/3] slub: fix small HWCACHE_ALIGN alignment, Christoph Lameter, (Wed Mar 5, 5:06 pm)
Re: [rfc][patch 1/3] slub: fix small HWCACHE_ALIGN alignment, Nick Piggin, (Wed Mar 5, 10:57 pm)
Re: [rfc][patch 1/3] slub: fix small HWCACHE_ALIGN alignment, Christoph Lameter, (Thu Mar 6, 6:56 pm)
Re: [rfc][patch 1/3] slub: fix small HWCACHE_ALIGN alignment, Nick Piggin, (Thu Mar 6, 10:23 pm)
Re: [rfc][patch 1/3] slub: fix small HWCACHE_ALIGN alignment, Christoph Lameter, (Thu Mar 6, 10:26 pm)
Re: [rfc][patch 1/3] slub: fix small HWCACHE_ALIGN alignment, Nick Piggin, (Thu Mar 6, 10:32 pm)
Re: [rfc][patch 1/3] slub: fix small HWCACHE_ALIGN alignment, Christoph Lameter, (Thu Mar 6, 10:54 pm)
Re: [rfc][patch 1/3] slub: fix small HWCACHE_ALIGN alignment, Nick Piggin, (Thu Mar 6, 11:10 pm)
Re: [rfc][patch 1/3] slub: fix small HWCACHE_ALIGN alignment, Christoph Lameter, (Thu Mar 6, 11:18 pm)
Re: [rfc][patch 1/3] slub: fix small HWCACHE_ALIGN alignment, Nick Piggin, (Thu Mar 6, 11:22 pm)
Re: [rfc][patch 1/3] slub: fix small HWCACHE_ALIGN alignment, Christoph Lameter, (Thu Mar 6, 11:58 pm)
Re: [rfc][patch 1/3] slub: fix small HWCACHE_ALIGN alignment, Nick Piggin, (Fri Mar 7, 12:05 am)
Re: [rfc][patch 1/3] slub: fix small HWCACHE_ALIGN alignment, Pekka Enberg, (Mon Mar 3, 5:30 pm)
Re: [rfc][patch 1/3] slub: fix small HWCACHE_ALIGN alignment, Christoph Lameter, (Mon Mar 3, 5:32 pm)
Re: [rfc][patch 1/3] slub: fix small HWCACHE_ALIGN alignment, Nick Piggin, (Tue Mar 4, 8:08 pm)
Re: [rfc][patch 1/3] slub: fix small HWCACHE_ALIGN alignment, Pekka Enberg, (Mon Mar 3, 5:35 pm)
Re: [rfc][patch 1/3] slub: fix small HWCACHE_ALIGN alignment, Nick Piggin, (Tue Mar 4, 8:28 pm)
Re: [rfc][patch 1/3] slub: fix small HWCACHE_ALIGN alignment, Christoph Lameter, (Wed Mar 5, 4:56 pm)
Re: [rfc][patch 1/3] slub: fix small HWCACHE_ALIGN alignment, Nick Piggin, (Wed Mar 5, 10:49 pm)
Re: [rfc][patch 1/3] slub: fix small HWCACHE_ALIGN alignment, Christoph Lameter, (Thu Mar 6, 6:53 pm)
Re: [rfc][patch 1/3] slub: fix small HWCACHE_ALIGN alignment, Nick Piggin, (Thu Mar 6, 10:04 pm)
Re: [rfc][patch 1/3] slub: fix small HWCACHE_ALIGN alignment, Christoph Lameter, (Thu Mar 6, 10:20 pm)
Re: [rfc][patch 1/3] slub: fix small HWCACHE_ALIGN alignment, Nick Piggin, (Thu Mar 6, 10:25 pm)
Re: [rfc][patch 1/3] slub: fix small HWCACHE_ALIGN alignment, Christoph Lameter, (Thu Mar 6, 10:27 pm)
Re: [rfc][patch 1/3] slub: fix small HWCACHE_ALIGN alignment, Nick Piggin, (Thu Mar 6, 10:33 pm)
Re: [rfc][patch 1/3] slub: fix small HWCACHE_ALIGN alignment, Christoph Lameter, (Thu Mar 6, 10:33 pm)
Re: [rfc][patch 1/3] slub: fix small HWCACHE_ALIGN alignment, Nick Piggin, (Fri Mar 7, 1:23 am)
Re: [rfc][patch 1/3] slub: fix small HWCACHE_ALIGN alignment, Pekka Enberg, (Mon Mar 3, 5:44 am)
Re: [rfc][patch 1/3] slub: fix small HWCACHE_ALIGN alignment, Nick Piggin, (Mon Mar 3, 8:28 am)
[rfc][patch 3/3] use SLAB_ALIGN_SMP, Nick Piggin, (Mon Mar 3, 5:36 am)
Re: [rfc][patch 3/3] use SLAB_ALIGN_SMP, Eric Dumazet, (Mon Mar 3, 5:53 am)
Re: [rfc][patch 3/3] use SLAB_ALIGN_SMP, Nick Piggin, (Mon Mar 3, 8:41 am)
Re: [rfc][patch 3/3] use SLAB_ALIGN_SMP, Eric Dumazet, (Mon Mar 3, 9:00 am)
Re: [rfc][patch 3/3] use SLAB_ALIGN_SMP, Nick Piggin, (Mon Mar 3, 9:46 am)
Re: [rfc][patch 3/3] use SLAB_ALIGN_SMP, Pekka Enberg, (Mon Mar 3, 9:53 am)
Re: [rfc][patch 3/3] use SLAB_ALIGN_SMP, Christoph Lameter, (Mon Mar 3, 3:09 pm)
Re: [rfc][patch 3/3] use SLAB_ALIGN_SMP, Nick Piggin, (Mon Mar 3, 4:10 pm)
Re: [rfc][patch 3/3] use SLAB_ALIGN_SMP, Christoph Lameter, (Mon Mar 3, 4:12 pm)
Re: [rfc][patch 3/3] use SLAB_ALIGN_SMP, Nick Piggin, (Mon Mar 3, 4:18 pm)
Re: [rfc][patch 3/3] use SLAB_ALIGN_SMP, Christoph Lameter, (Mon Mar 3, 5:14 pm)
Re: [rfc][patch 3/3] use SLAB_ALIGN_SMP, Eric Dumazet, (Mon Mar 3, 10:15 am)
Re: [rfc][patch 3/3] use SLAB_ALIGN_SMP, Christoph Lameter, (Mon Mar 3, 3:10 pm)
[rfc][patch 2/3] slab: introduce SMP alignment, Nick Piggin, (Mon Mar 3, 5:35 am)
Re: [rfc][patch 2/3] slab: introduce SMP alignment, Christoph Lameter, (Mon Mar 3, 3:06 pm)
Re: [rfc][patch 2/3] slab: introduce SMP alignment, Nick Piggin, (Mon Mar 3, 4:03 pm)
Re: [rfc][patch 2/3] slab: introduce SMP alignment, Christoph Lameter, (Mon Mar 3, 4:09 pm)
Re: [rfc][patch 2/3] slab: introduce SMP alignment, Nick Piggin, (Mon Mar 3, 4:12 pm)
Re: [rfc][patch 2/3] slab: introduce SMP alignment, Christoph Lameter, (Mon Mar 3, 4:17 pm)
Re: [rfc][patch 2/3] slab: introduce SMP alignment, Nick Piggin, (Mon Mar 3, 4:24 pm)
Re: [rfc][patch 2/3] slab: introduce SMP alignment, Christoph Lameter, (Mon Mar 3, 5:31 pm)
Re: [rfc][patch 2/3] slab: introduce SMP alignment, Nick Piggin, (Fri Mar 7, 12:37 am)
Re: [rfc][patch 2/3] slab: introduce SMP alignment, Christoph Lameter, (Fri Mar 7, 1:11 am)
Re: [rfc][patch 2/3] slab: introduce SMP alignment, Nick Piggin, (Fri Mar 7, 1:19 am)
Re: [rfc][patch 2/3] slab: introduce SMP alignment, Christoph Lameter, (Fri Mar 7, 1:26 am)
Re: [rfc][patch 2/3] slab: introduce SMP alignment, Nick Piggin, (Tue Mar 11, 3:13 am)
Re: [rfc][patch 2/3] slab: introduce SMP alignment, Christoph Lameter, (Wed Mar 12, 2:21 am)
Re: [rfc][patch 2/3] slab: introduce SMP alignment, Nick Piggin, (Fri Mar 7, 1:37 am)
Re: [rfc][patch 2/3] slab: introduce SMP alignment, Nick Piggin, (Tue Mar 4, 8:16 pm)
Re: [rfc][patch 2/3] slab: introduce SMP alignment, Pekka Enberg, (Mon Mar 3, 4:41 pm)
Re: [rfc][patch 2/3] slab: introduce SMP alignment, Christoph Lameter, (Mon Mar 3, 5:23 pm)

Mail archive search
Enter your search terms.
Optionally limit your search to a specific mailing list.
advanced
Colocation donated by:
Who's online
There are currently 3 users and 1062 guests online.

Online users

Syndicate
Syndicate content
© 2007 KernelTrap.  |  Powered by Drupal.  |  Legal statement.
speck-geostationary