linux-kernel - Re: [PATCH 0/4] WorkStruct: Shrink work

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: <1164040326.5700.46.camel@lade.trondhjem.org>
Date:	Mon, 20 Nov 2006 11:32:06 -0500
From:	Trond Myklebust <trond.myklebust@....uio.no>
To:	David Howells <dhowells@...hat.com>
Cc:	torvalds@...l.org, akpm@...l.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 0/4] WorkStruct: Shrink work_struct by two thirds

On Mon, 2006-11-20 at 14:27 +0000, David Howells wrote:
> 
> The workqueue struct is huge, and this limits it's usefulness.  On a 64-bit
> architecture it's nearly 100 bytes in size, of which the timer_list is half.
> These patches shrink work_struct by 8 of the 12 words it ordinarily consumes.
> This is done by:
> 
>  (1) Splitting the timer out so that delayable work items are defined by a
>      separate structure which incorporates a basic work_struct and a timer.

Why not simply add a timer argument to 'queue_delayed_work()' and
'cancel_delayed_work()'? That may allow you to reuse an existing timer
struct if you already have it embedded somewhere else.

Cheers
  Trond

-
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/