[ltp] T41p suspend to RAM on 2.6.11.3

Daniel Stodden linux-thinkpad@linux-thinkpad.org
Thu, 17 Mar 2005 11:58:09 +0100


On Thu, 2005-03-17 at 10:13 +0100, Daniel Stodden wrote:

> i've just written a small script to measure sleep power consumption on
> each suspend to ram. results below, though i did not take the full 15
> minutes.
> 
> Mar 17 09:59:42 localhost acpi: enter: 1111049982 s, 40340 mWh
> Mar 17 10:07:38 localhost acpi: leave: 1111050458 s, 40270 mWh
> Mar 17 10:07:38 localhost acpi: power consumption: 70 mWh / 476 s = 529
> mWh/h

update:

Mar 17 11:20:11 localhost acpi: power consumption: 580 mWh / 3168 s = 659 mWh/h

> that already seems to roughly match the approximate 600mWh targeted by
> the patches theo ts'o sent around yesterday.
> 
> > Are you using an unpatched 2.6.11.3 kernel ?
> 
> currently based on vanilla 2.6.11.3 + swsusp2 + a small number of
> patches totally unrelated to power management. non-stock modules, e.g.
> recent ibm-acpi, not counted as patches.

regards,
daniel