Il 10/01/2011 18:35, Luck, Tony ha scritto: >> You'd be better running ext2 over special block device, >> it is quite simple. > > Marco, > > You might want to spend some more time answering this question > (it is a particularly good one). What are the reasons to use > pramfs, rather than a ext2 over a mem<->block driver. You covered > some in your part 0 patch (like ext2 wastes time getting optimal > block placement for rotating media). But it might be a good idea > to go back over them here. From my (lightweight) reading of your > code, it looks like the biggest benefit is avoiding duplicating > the data in the pramfs memory region and the VM page cache ... > which is a big deal for your target audience of hand held devices > where memory is a somewhat scarce resource. But you probably > have other goodness in there too. > > -Tony > I can add that you can "place" the fs wherever you want, ext2 not without to build something "special" as Pavel said. Sincerely I don't know what other add. I think documentation, web site information and benchmark say all. You have got a fs that it's simple, it doesn't consume a lot of resources (you can do a fine tuning via N and bpi options for the metadata space for example), better in performance in this "environment", with the memory protection feature when available....other? I could write a piece of code that it turn on your coffee machine at morning, what do you think? :) Marco -- To unsubscribe from this list: send the line "unsubscribe linux-embedded" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
