XO 1.75 battery life?
Richard A. Smith
richard at laptop.org
Sun Dec 4 01:58:53 EST 2011
On 12/02/2011 11:38 PM, Chris Leonard wrote:
> On Fri, Dec 2, 2011 at 4:12 PM, Richard A. Smith<richard at laptop.org> wrote:
>> If you wanted to help and you have a 1.5 you can. People with 1.5s can
>> provide accurate usage info they install the latest release, make sure the
>> date is set correctly, and then allow powerd to do ASR (ie don't disable
>> it). Then use the XO as you normally would but use it on battery as much as
>> possible. Only charge up the battery when it gets low. Powerd logs are kept
>> in /home/olpc/power-logs . After a few cycles of the battery send me all
>> the logs in that directory.
> Do you really mean XO 1.5 or did you intend to write XO 1.75 in the
> paragraph above?
I meant 1.5. Few people have 1.75 and since ASR is not fully operational
its not fun testing when your system crashes.
You can even do it on a XO-1 if you allow ASR to happen which is
disabled by default.
Powerd logs transitions into and out of suspend. So given a powerd
logfile you can determine how much suspend % was achieved. The % of
time you can go into suspend is much more workload dependent than it is
machine dependent. The % suspend on a 1.5 should roughly the same as it
would be on a 1.75.
Again for testing you must be using the latest OS release. The last
release (build 860) had a bug that makes this data difficult to extract.
Richard A. Smith <richard at laptop.org>
One Laptop per Child
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