OK. Great. Is the attached version newer than the one in Sugar 0.88?? Because the latest dextrose image is mainly based on Sugar 0.88
2011/3/24 Richard A. Smith <rich...@laptop.org> > On 03/24/2011 10:41 AM, Ismael Schinca wrote: > > I'm planning to use different XO's, all of them 1.0 hardware. I >> definately won't be able to finish today because they all have different >> OS images and I think it would be best if I update them all (even for >> future tests). Maybe tomorrow, maybe monday. >> > > Yes certainly please use the same image on all of them. If you have to > install software then please use the latest version of olpc-pwr-log. I have > it attached to this mail. > > > I think it will be very hard to perform the same test under the same >> conditions as you suggest because: >> - It will be very time consuming (though it doesn't need a lot of >> attention during the test) >> > > My goal is to automate the test and use a very short test window. ie 20 > minutes or so. > > > - The air conditioning in our building is quite frankly chaotic so >> temperature is really variable (which is actually a lot worse for us >> humans than batteries ;) ) >> > > Yes. Sorry my use of the word exactly was probably too strong. I don't > mean that it has to be 25 degC ambient and only that temperature. The temp > fluctuations in a air conditioned office should be within reason. I just > don't want the profiles generated in an office and then the test run in a > outside warehouse at 33C. Or the curves generated on a XO-1 with build 8.2 > but the test run on a 1.5 with build 10.1.3. That sort of thing. > > The closer I might get, which I think could be pretty close is: >> - Install the SAME fresh OS image and firmware version on all the test XOs >> - Disable power management in every XO. >> > > and dpms. xset -dpms from the sugar terminal other wise the screen will > turn off in 20 minutes and change the power draw. > > > - The laptops batteries are mostly charged, so it will be a charge after >> discharge, so I think temperature there is less of a concern >> - Run the tests at the same time in every XO >> > > Yes. I believe that will work fine. > > Note: I'm getting on a plane in a few minutes so this will be my last > e-mail until much later on today. Possible tonight or tomorrow. > > > -- > Richard A. Smith <rich...@laptop.org> > One Laptop per Child > -- Ismael Schinca Centro Ceibal - Depto. Técnico - I+D Avda. Italia 6201 - Edificio Los Ceibos Montevideo - Uruguay. Tel.: 2601 57 73 Int. 2232
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