On Tue, Mar 17, 2009 at 05:42:36AM -0400, John Watlington wrote: > On Mar 17, 2009, at 5:34 AM, Tomeu Vizoso wrote: > > On Tue, Mar 17, 2009 at 04:48, John Watlington <w...@laptop.org> wrote: > >> I would expect it to be faster on other processors. > > > > I don't think the processor is the biggest factor. In my profiling, I > > have seen bigger impact from jffs2/nand, the graphics subsystem and > > the lack of swap. > > > If you run Soas-1 on a sd card with some swap space, you will see how > > the XO feels much faster. > > The difference here is that read access to data/programs on an SD > card is about twice as fast as JFFS2 (and incurs little processor > overhead, whereas JFFS2 tends to occupy the processor 100%), and > write access is about 15 times faster than JFFS2. I doubt the > speedup is due to the presence of swap.
I seem to recall this is one of those conversations that comes up periodically, and that once someone / people created a wiki page with thoughts on a partitioning layout design that could be of broad use. Does anyone know where that wiki page is? I couldn't find it with some naive google searches... Martin
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