linux-kernel - [PATCH 0/3] Slab allocator array operations V2

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-next>] [day] [month] [year] [list]

Date:	Tue, 10 Feb 2015 13:48:04 -0600
From:	Christoph Lameter <cl@...ux.com>
To:	akpm@...uxfoundation.org
Cc:	linux-mm@...ck.org, penberg@...nel.org, iamjoonsoo@....com,
	Jesper Dangaard Brouer <brouer@...hat.com>
Subject: [PATCH 0/3] Slab allocator array operations V2

V1->V2:
- Allocator will determine how to acquire the objects. Remove
  the flags that we exposed to the subsystems in V1.
- Restructure patch a bit to minimize size
- Add material provided by Jesper.

Attached a series of 3 patches to implement functionality to allocate
arrays of pointers to slab objects. This can be used by the slab
allocators to offer more optimized allocation and free paths.

Allocator performance issues were discovered by the network subsystem
developers when trying to get the kernel to send at line rate to
saturate a 40G link. Jesper developed special queueing methods
to compensate for the performance issues. See the following material:

LWN: Improving Linux networking performance
 - http://lwn.net/Articles/629155/
 - YouTube: https://www.youtube.com/watch?v=3XG9-X777Jo

LWN: Toward a more efficient slab allocator
 - http://lwn.net/Articles/629152/
 - YouTube: https://www.youtube.com/watch?v=s0lZzP1jOzI

--
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/