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From: rozhuk.im@gmail.com
To: "'Attilio Rao'" <attilio@freebsd.org>,
	"'Steven Atreju'" <snatreju@googlemail.com>
References: <20120502182557.GA93838@onelab2.iet.unipi.it>	<20120502215249.GT633@sherwood.local>	<CAHM0Q_NNoMrtwcz-xoQ34oVmgJSyjeb_7O6qBHCe16eFeTot_w@mail.gmail.com>	<20120503102844.GU633@sherwood.local>
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Date: Fri, 4 May 2012 01:24:11 +0900
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Cc: current@freebsd.org, 'Luigi Rizzo' <rizzo@iet.unipi.it>,
	"'K. Macy'" <kmacy@freebsd.org>, net@freebsd.org
Subject: RE: fast bcopy...
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> > guess this is a good time to thank the FreeBSD hackers for that FPU
> > stack FILD/FISTP idea!
> > I'll append the copy related notes of our doc/memperf.txt.
> > Thanks,
>=20
> I made an implementation of fpu unwinding and mmx copy to see if they
> were really making a difference years ago (reimplementing bcopy,
> memcopy, etc.).

Codecs, such as Ffdshow often contain their own functions to work with =
memory.