linux-kernel - Re: Downsides to madvise/fadvise(willneed) for application startup

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: <20100415164216.26848906.akpm@linux-foundation.org>
Date:	Thu, 15 Apr 2010 16:42:16 -0400
From:	Andrew Morton <akpm@...ux-foundation.org>
To:	Zan Lynx <zlynx@....org>
Cc:	Taras Glek <tglek@...illa.com>, linux-kernel@...r.kernel.org
Subject: Re: Downsides to madvise/fadvise(willneed) for application startup

On Thu, 15 Apr 2010 17:21:25 -0600 Zan Lynx <zlynx@....org> wrote:

> On 4/15/10 4:53 PM, Andrew Morton wrote:
> 
> > This just isn't an interesting case.  World-wide, the number of people
> > who compile their own web browser and execute it from the file which ld
> > produced is, umm, seven.
> 
> Gentoo users? Linux From Scratch?
> 
> There are many more than 7 of us. Unless you are talking about the build 
> environments always running some tool after ld which I am not aware of.
> 

OK, eight then.

But I still don't think it's the case we should optimise for.  Not if
it impacts the common case even the slightest.  It'd be far far better
to change those distros to perform the very cheap, once-off step of
straightening out their executables (including shared libraries).

--
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/