linux-kernel - RE: [PATCH 1/3] slub: set a criteria for slub node partial adding

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.LFD.2.02.1112140846290.1841@tux.localdomain>
Date:	Wed, 14 Dec 2011 08:47:36 +0200 (EET)
From:	Pekka Enberg <penberg@...nel.org>
To:	Eric Dumazet <eric.dumazet@...il.com>
cc:	"Alex,Shi" <alex.shi@...el.com>,
	David Rientjes <rientjes@...gle.com>,
	Christoph Lameter <cl@...ux.com>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"linux-mm@...ck.org" <linux-mm@...ck.org>
Subject: RE: [PATCH 1/3] slub: set a criteria for slub node partial adding

On Wed, 14 Dec 2011, Eric Dumazet wrote:
> We should try to batch things a bit, instead of doing a very small unit
> of work in slow path.
>
> We now have a very fast fastpath, but inefficient slow path.
>
> SLAB has a litle cache per cpu, we could add one to SLUB for freed
> objects, not belonging to current slab. This could avoid all these
> activate/deactivate overhead.

Yeah, this is definitely worth looking at.

 			Pekka
--
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/