linux-kernel - Re: [PATCH 00/10] AXFS: Advanced XIP filesystem

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Message-ID: <6934efce0809160830v461a115ch305aeaadaf5d9883@mail.gmail.com>
Date:	Tue, 16 Sep 2008 08:30:16 -0700
From:	"Jared Hulbert" <jaredeh@...il.com>
To:	"Ricard Wanderlof" <ricard.wanderlof@...s.com>
Cc:	"Jamie Lokier" <jamie@...reable.org>,
	"cotte@...ibm.com" <cotte@...ibm.com>,
	"Greg Ungerer" <gerg@...pgear.com>,
	"linux-embedded@...r.kernel.org" <linux-embedded@...r.kernel.org>,
	"nickpiggin@...oo.com.au" <nickpiggin@...oo.com.au>,
	"Jörn Engel" <joern@...fs.org>,
	"Linux-kernel@...r.kernel.org" <Linux-kernel@...r.kernel.org>,
	linux-mtd <linux-mtd@...ts.infradead.org>,
	"tim.bird@...sony.com" <tim.bird@...sony.com>
Subject: Re: [PATCH 00/10] AXFS: Advanced XIP filesystem

> NAND is significantly faster when writing than NOR, read speed is of the
> same magnitude, possibly slower in many cases.

Right.

Specifically, read bandwidth is on the same order of magnitude.
However the read latency of NAND is a couple orders of magnitude
higher (100ns vs 20,000ns) so it depends on what you are doing.
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