[PATCH 00/10] AXFS: Advanced XIP filesystem

[Jared Hulbert]

On Fri, Aug 22, 2008 at 11:13 AM, Jamie Lokier <jamie at shareable.org> wrote:
> Greg Ungerer wrote:
>> One thing for sure is that many people who do non-MMU setups
>> are interested in XIP to get the space savings. These are very
>> often small devices with very constrained RAM and flash. (For
>> whatever it is worth single NOR flash only boards are common in
>> these smaller form factors :-)
>
> I'm using XIP on a device with 32MB RAM.  The reason I use it is
> _partly_ to save RAM, partly because programs start about 10 times
> faster (reading NOR flash is slow and I keep the XIP region in RAM)

What kind of NOR you using?  That is not what I measure with fast
synchronous burst NOR's.