--- crowd-funded eco-conscious hardware: https://www.crowdsupply.com/eoma68
On Sun, Jan 14, 2018 at 7:50 AM, Richard Wilbur richard.wilbur@gmail.com wrote:
On Jan 13, 2018, at 15:11, Luke Kenneth Casson Leighton lkcl@lkcl.net wrote:
On Sat, Jan 13, 2018 at 10:05 PM, Richard Wilbur richard.wilbur@gmail.com wrote:
I was just wondering whether there were more GPIO lines we could test (by hook or by crook). My goal is the best test coverage.
i also have to think how to minimise testing time, as it will be chargeable by the minute. either that or i do it... get *everything* shipped to my apartment.... oooo i always wanted an ultra-low-power beowulf clusterrrr... ooooo :)
From what I've seen, I think we can automate a lot of this so it takes a second or two per card.
it'll be a bit longer than that :)
I expect our tall tentpole (the thing that's holding everything up) will be booting the card. Do you know how long it takes the bootloader to come up from power on?
it's about 1-2 seconds :) there's a 3 second automated delay for "user-input" which can be switched off.
How long does it take GNU/Linux to get to user login after that?
initialisation of the linux kernel depends very much on which kernel modules are compiled-in and which are modules, but let's say around 4-7 seconds. there is quite a lot of "delay" built-in, such as waiting for sd-cards to initialise, or waiting for this to initialise,waiting for that etc.
from /sbin/init to a full GUI is about another.... 10-15 seconds.
l.