On Wed, May 18, 2016 at 08:52:16AM +0200, Stefan Christ wrote: > Hi Sascha, > > On Tue, May 10, 2016 at 08:24:43AM +0200, Sascha Hauer wrote: > > subpage read support can significantly speed up scanning UBI volumes, so > > add support for it. This is inspired by the corresponding Kernel commit. > > Unlike in the kernel we add subpage read support for i.MX28 aswell. > > Testing it on i.MX28 revealed no problems. > > > > Signed-off-by: Sascha Hauer <s.hauer@xxxxxxxxxxxxxx> > > Here is my > > Tested-by: Stefan Christ <s.christ@xxxxxxxxx> > > I measured the ubiattach time for two different NAND chips after an ubiformat > on the devices. It's around 30% faster. Here are the results: Thanks for testing this. The results become even better with bigger pages. I have a board with 8k page Nand here. The scanning time reduced from 31s to 3.5s. Sascha -- Pengutronix e.K. | | Industrial Linux Solutions | http://www.pengutronix.de/ | Peiner Str. 6-8, 31137 Hildesheim, Germany | Phone: +49-5121-206917-0 | Amtsgericht Hildesheim, HRA 2686 | Fax: +49-5121-206917-5555 | _______________________________________________ barebox mailing list barebox@xxxxxxxxxxxxxxxxxxx http://lists.infradead.org/mailman/listinfo/barebox
