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Date:      Thu, 3 May 2012 02:58:05 +0200
From:      "K. Macy" <kmacy@freebsd.org>
To:        Steven Atreju <snatreju@googlemail.com>
Cc:        Luigi Rizzo <rizzo@iet.unipi.it>, current@freebsd.org, net@freebsd.org
Subject:   Re: fast bcopy...
Message-ID:  <CAHM0Q_NNoMrtwcz-xoQ34oVmgJSyjeb_7O6qBHCe16eFeTot_w@mail.gmail.com>
In-Reply-To: <20120502215249.GT633@sherwood.local>
References:  <20120502182557.GA93838@onelab2.iet.unipi.it> <20120502215249.GT633@sherwood.local>

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It's highly chipset and processor dependent what works best. Intel now
has non-temporal loads and stores which work much better in some cases
but provide little benefit in others.

-Kip

On Wed, May 2, 2012 at 11:52 PM, Steven Atreju <snatreju@googlemail.com> wr=
ote:
> Luigi Rizzo wrote:
>> 2. apparently, bcopy is not the fastest way to copy memory.
>
> http://now.cs.berkeley.edu/Td/bcopy.html
>
> Best Regards.
>
> Steven.
> _______________________________________________
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--=20
=A0 =A0=93The real damage is done by those millions who want to 'get by.'
The ordinary men who just want to be left in peace. Those who don=92t
want their little lives disturbed by anything bigger than themselves.
Those with no sides and no causes. Those who won=92t take measure of
their own strength, for fear of antagonizing their own weakness. Those
who don=92t like to make waves=97or enemies.

=A0 =A0Those for whom freedom, honour, truth, and principles are only
literature. Those who live small, love small, die small. It=92s the
reductionist approach to life: if you keep it small, you=92ll keep it
under control. If you don=92t make any noise, the bogeyman won=92t find
you.

=A0 =A0But it=92s all an illusion, because they die too, those people who
roll up their spirits into tiny little balls so as to be safe. Safe?!
>From what? Life is always on the edge of death; narrow streets lead to
the same place as wide avenues, and a little candle burns itself out
just like a flaming torch does.

=A0 =A0I choose my own way to burn.=94

=A0 =A0Sophie Scholl



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