linux-kernel - Re: quicklists confuse meminfo

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: <20080309123432.GA3267@elte.hu>
Date:	Sun, 9 Mar 2008 13:34:32 +0100
From:	Ingo Molnar <mingo@...e.hu>
To:	KOSAKI Motohiro <kosaki.motohiro@...fujitsu.com>
Cc:	Thomas Gleixner <tglx@...utronix.de>,
	LKML <linux-kernel@...r.kernel.org>,
	Linus Torvalds <torvalds@...ux-foundation.org>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Christoph Lameter <clameter@....com>,
	Bart Van Assche <bart.vanassche@...il.com>
Subject: Re: quicklists confuse meminfo

* Ingo Molnar <mingo@...e.hu> wrote:

> > IMHO we need shrink pgtable cache mecanism.
> 
> ouch! Could you try the patch below? How large is the quicklist cache 
> with this applied?

hm, Thomas pointed it out that this wont solve all the problems as 
quicklists have a built-in "preserve me" throttle (which is rather 
stupid).

the right solution is to get rid of quicklists altogether (Thomas 
expects to have patches for that later today).

If anyone implements a _sane_ general purpose allocator that can 
preserve constructed objects then i'm all for utilizing it in x86 too, 
but quicklists arent that mechanism ...

	Ingo
--
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/