linux-kernel - Re: [this_cpu_xx V6 7/7] this_cpu: slub aggressive use of this

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <alpine.DEB.1.10.0910141418480.9708@gentwo.org>
Date:	Wed, 14 Oct 2009 14:19:40 -0400 (EDT)
From:	Christoph Lameter <cl@...ux-foundation.org>
To:	Pekka Enberg <penberg@...helsinki.fi>
cc:	Mel Gorman <mel@....ul.ie>, David Rientjes <rientjes@...gle.com>,
	Tejun Heo <tj@...nel.org>, linux-kernel@...r.kernel.org,
	Mathieu Desnoyers <mathieu.desnoyers@...ymtl.ca>,
	Zhang Yanmin <yanmin_zhang@...ux.intel.com>
Subject: Re: [this_cpu_xx V6 7/7] this_cpu: slub aggressive use of this_cpu
  operations in the hotpaths

On Wed, 14 Oct 2009, Pekka Enberg wrote:

> Yeah, that should help but it's probably not something we can do for
> mainline. I'm not sure how we can fix SLUB to support large objects
> out-of-the-box as efficiently as SLAB does.

We could add a per cpu "queue" through a pointer array in kmem_cache_cpu.
Which is more SLQB than SLUB.

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