Hi, On Fri, Aug 27, 2010 at 12:34:37AM +0200, Loïc Minier wrote: > - testing our linux-linaro-2.6.35 kernel and u-boot-linaro bootloader > and reporting any missing features / bugs when compared to other > distros > - measuring boot time of the various pieces (x-loader, u-boot, kernel, > userspace) perhaps breaking each piece open and seeing where time is > spent in the kernel init; how does NAND boot versus MMC boot compare > with your MMC?
Note that just testing things "as they are" might not give the fanciest results :-) For example, we have an i.MX35 @ 532 MHz booting from NAND, and it takes 336 ms from the first user-changable assembler instruction (after the ROM bootloader) up to /sbin/init is started (we toggle a GPIO in both places). However, achieving that needed some funny parallelization hacks in Barebox, plus a creative block size of the Linux kernel. If you configure it with the off-the-shelf configuration, it will surely need longer. > - creating a barebox package building a beagleboard version; does it > have regression over u-boot? (perhaps some fixes which went into > u-boot are missing?) Note that Michael Grzeschik <m...@pengutronix.de> recently worked on bringing Barebox support for the beagle board up to date, the results didn't hit the Barebox mainline yet. We are working on a step-by-step documentation for the elinux.org wiki. rsc -- 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 | _______________________________________________ linaro-dev mailing list linaro-dev@lists.linaro.org http://lists.linaro.org/mailman/listinfo/linaro-dev
