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Date:      Wed, 12 Sep 2012 08:43:42 -0600
From:      Ian Lepore <freebsd@damnhippie.dyndns.org>
To:        obrien@freebsd.org
Cc:        Arthur Mesh <arthurmesh@gmail.com>, Doug Barton <dougb@freebsd.org>, freebsd-rc@freebsd.org, RW <rwmaillists@googlemail.com>, Dag-Erling =?UTF-8?Q?=EF=BF=BD?= <des@des.no>, d@delphij.net
Subject:   Re: svn commit: r239569 - head/etc/rc.d
Message-ID:  <1347461022.1110.29.camel@revolution.hippie.lan>
In-Reply-To: <20120912000738.GA90897@dragon.NUXI.org>
References:  <86sjao7q8c.fsf@ds4.des.no> <20120911205302.27484fd6@gumby.homeunix.com> <20120911200925.GA88456@dragon.NUXI.org> <504FA76A.5000209@delphij.net> <20120911211730.GB89188@dragon.NUXI.org> <504FAB87.3020701@delphij.net> <20120911215212.GA89515@dragon.NUXI.org> <504FBD15.8040907@delphij.net> <20120911230121.GA90289@dragon.NUXI.org> <504FC7B0.2060706@delphij.net> <20120912000738.GA90897@dragon.NUXI.org>

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On Tue, 2012-09-11 at 17:07 -0700, David O'Brien wrote:
> On Tue, Sep 11, 2012 at 04:22:24PM -0700, Xin Li wrote:
> > Please consider using sha512...
> 
> What is the performance (boot time) impact on low-end MIPS and ARM
> systems?
> 
> I'm all for sha512, but don't want to be shot with a machine gun (vs.
> simple pistol).
> 

For the embedded systems I take care of, the performance problem on
low-end systems is likely to be solved by ignoring all of this angels
dancing on a pin stuff and supplying an alternate kickstart mechanism
appropriate to the way the system is used (which almost surely won't be
in any national security datacenter).

I can assure you that neither shaXXX nor gzip nor anything else that
eats that many cycles will be involved. :)

I just hope one of things coming out of all this is a reasonable
mechanism for supplying alternate kickstart data.

-- Ian





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