linux-kernel - Re: Avoid allocating during interleave from almost full nodes

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 for Android: free password hash cracker in your pocket

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

Message-Id: <20061103174206.53f2c49e.akpm@osdl.org>
Date:	Fri, 3 Nov 2006 17:42:06 -0800
From:	Andrew Morton <akpm@...l.org>
To:	Paul Jackson <pj@....com>
Cc:	clameter@....com, linux-kernel@...r.kernel.org
Subject: Re: Avoid allocating during interleave from almost full nodes

On Fri, 3 Nov 2006 17:26:05 -0800
Paul Jackson <pj@....com> wrote:

> Andrew wrote:
> > But in this application which you are proposing, any correlation with
> > elapsed walltime is very slight.  It's just the wrong baseline to use. 
> > What is the *sense* in it?
> 
> Ah - but time is cheap as dirt, and scales like the common cold virus.
> That makes it sinfully attractive for secondary affect placement cache
> hints like this.
> 
> What else would you suggest?
> 
> Same question applies, I suppose, to my zonelist caching patch that is
> sitting in your *-mm patch stack, where you also had doubts about using
> wall clock time to decay the fullnode hints.

Depends what it's doing.  "number of pages allocated" would be a good
"clock" to use in the VM.  Or pages scanned.  Or per-cpu-pages reloads. 
Something which adjusts to what's going on.
-
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/