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Subject: Re: Real-time flash simulator
From: Artem Bityutskiy <dedekind@infradead.org>
To: =?ISO-8859-1?Q?J=F6rn?= Engel <joern@logfs.org>
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Date: Fri, 22 Jun 2007 13:59:54 +0300
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	Martin =?ISO-8859-1?Q?D=E4umler?= <martin.daeumler@s2003.tu-chemnitz.de>
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On Fri, 2007-06-22 at 12:24 +0200, J=C3=B6rn Engel wrote:
> On Fri, 22 June 2007 12:11:29 +0200, Martin D=C3=A4umler wrote:
> >=20
> > that is right! The idea is to use a (not specified) file system which=20
> > performs in-place updates on top of this layer. This layer should map
> > logical to physical erase units. So, wear-levelling possibly could be
> > used to "displace" garbage collection. The goal is to decrase latency
> > and above all make it more deterministic.
>=20
> Sounds just like FAT on smartmedia.  Worst case latency is both
> deterministic and low.  Random writes of small blocks are also
> prohibitively slow.  Works great when writing few large files, like jpg
> images in digital cameras.

It is about EB mappings, not FTL.

--=20
Best regards,
Artem Bityutskiy (=D0=91=D0=B8=D1=82=D1=8E=D1=86=D0=BA=D0=B8=D0=B9 =D0=90=
=D1=80=D1=82=D1=91=D0=BC)