[olpc-nz] power logging

[Richard A. Smith]

On 01/15/2011 06:00 AM, Tom Parker wrote:

> Please find attached power logging for two relatively short au860-4
> sessions on two XO-1.5s. Shadow is a prototype with power saving turned
> off, I believe Ivy is a production unit and had power saving turned on.

Thanks.  Yes Ivy is a 0xD1 board rev which IIRC means that a suspend 
will cause your wireless card to disappear.  Its still useful data for 
comparison purposes.

> I did follow your instructions for new-pwrlog thing, but my comment
> didn't seem to show up in the file.

The powerd version in your build has a bug that causes the log comments 
to not get displayed.  Although not absolutely required upgrading would 
be nice as there are some other logging bugs that were fixed too.

> We'll send more logs next week (and thereafter if you want).
>
> How important is the new-pwrlog thing? In our testing environment, it is
> much easier to mark the files after the fact than to do special commands
> at the beginning of testing.

I don't want to create a lot of extra work for you so feel free to 
suggest a work flow that fits in with your testing.  The reason for the 
new-pwrlog thing is to provide a known starting point.  Powerd logs 
continuously from when the system is started so that provides an easy 
way for me to know which of the logs you send are valid.  I was trying 
to make it so you didn't have to post-process the logs.

I process the logs in bulk with my processing scripts so I either need 
some sort of marker in the logs or individual logs so I know where 
things start.

If post-processing works better for you then lets figure out a good way 
to add that into your testing.  Perhaps Paul and I can give you some 
scripts that make things easier.  Please describe your testing 
environment workflow to us and why the post-processing is easier than a 
new-pwrlog.

Thanks for your help.

P.S.  I'm in Taiwan at the 1.75 A2 board bring up.  I'll try to process 
these logs soon but that and my responses to mail may lag a bit as I'm 
really busy.

-- 
Richard A. Smith  <richard at laptop.org>
One Laptop per Child