On Wed, May 18, 2011 at 11:39 AM, Riku Voipio <riku.voi...@linaro.org> wrote: > On 18 May 2011 16:53, Dave Martin <dave.mar...@linaro.org> wrote: >> On Tue, May 17, 2011 at 5:53 PM, Tom Gall <tom.g...@linaro.org> wrote: > >>> https://wiki.linaro.org/BootChart > >> Due to the poor I/O throughput, it looks a bit like we might be >> hitting the known SD card write behaviour issues; mounting with >> noatime and/or journaling disabled (noload for ext4) might also make a >> difference. > > The long time of "mount" looks fishy. Are you sure you are booting > with a clean filesystem? > > Other than that we see that > > 1) we start too much (cron, gdm, ...) for our use case
That's because we're using the ubuntu-netbook task, that brings a lot of additional daemons. > 2) too many shells started to parse shell scripts I can see a lot of 'sh', 'cat', 'rm', 'sleep', 'run-parts', I think this could all be optimized. > As for finding files writes to on boot, using a "find / -mtime -2" or > some variation to pick up files modified since boot is easiest. Yeah, would be good to see what was actually changed at the filesystem. Having the bootchart with a usb driver can also help comparing the results. Cheers, -- Ricardo Salveti de Araujo _______________________________________________ linaro-dev mailing list linaro-dev@lists.linaro.org http://lists.linaro.org/mailman/listinfo/linaro-dev
