PowerManagementASPM
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Comment: added Lenovo X220T with SSD
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||Apple MacBook Pro 7,1||MBP81.88Z.0039.B0B.1006012305||64||3.0.0-13-generic||16.76||3.0.0-13-generic||15.84|||||| | ||Apple MacBook Pro 7,1||MBP81.88Z.0039.B0B.1006012305||64||3.0.0-13-generic||16.76||3.0.0-13-generic||15.84||7 ||Unity 3D|| |
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||Lenovo Thinkpad X220T with SSD||8DET49WW (1.19 )||64||3.0.0-13.generic||9,08||3.0.0-13.generic||6,24||||Unity 3D|| | ||Lenovo Thinkpad X220||8DET42WW (1.12)||64||3.0.0-13.generic||19.4||3.0.0-13.generic||15.7||||Unity 3d|| ||Lenovo Thinkpad X220T with SSD (i915.i915_enable_rc6=1 i915.i915_enable_fbc=1 i915.lvds_downclock=1)||8DET49WW (1.19 )||64||3.0.0-13.generic||9,08||3.0.0-13.generic||6,24||||Unity 3D|| |
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1.#7 Using nouveau instead of nvidia binary driver. |
ASPM PCIe Bug
As noted by Phoronix ASPM PCIe power saving has been problematic and a recent patch by Matthew Garrett has re-worked this to clear the ASPM state on all devices on a successful handoff of PCIe control to the OS.
We therefore are providing patched kernels carrying Matthew's fix for testing purposes only to see how well this works across a broad range of machines. Kernels can be found in:
For power measurement, we currently recommend using the older version of powertop 1.13 as this clearly displays the ACPI estimated power consumption. A .deb for powertop-1 can be found here. We recommend running powertop as follows:
- Boot the machine, start powertop-1
- Wait until you get an ACPI estimated power consumption value.
- Gather 15 measurements (it is updated regularly).
- Discard the first 5 results.
- Take average of the last 10 results (total/10)
Testing procedure:
- Ensure laptop is fully charged
- Unplug AC power
- Run powertop-1 on an idle system and note power consumption
- Plug in AC power
- Install the new kernel containing the ASPM fix
- Restart laptop and choose the new kernel
- Ensure laptop is fully charged
- Unplug AC power
- Run powertop-1 on an idle system and note power consumption
- Gather the BIOS version using: sudo dmidecode -t 0 | grep "Version:"
- Add results to the table below:
Please try and keep table in sorted order on the machine name. Thanks!
Machine |
BIOS |
32/64 bit kernel |
Original Kernel |
Original Kernel Power |
ASPM fix Kernel |
ASPM fix Power |
Notes |
Desktop |
Acer Aspire AO722 |
JE10BZ V1.04 |
64 |
3.0.0-12-generic |
11.43W ± 0.39 |
3.0.0-13-generic |
11.25W ± 0.26 |
3 |
|
Acer Aspire One 533 |
V1.05 |
32 |
3.0.0-13-generic |
7.58W |
3.0.0-13-generic |
7.7W |
2 |
|
Acer Aspire One AOA110 |
v0.3310 |
32 |
3.0.0-13-generic |
11.23 |
3.0.0-13-generic |
11.13 |
||
Apple MacBook Pro 7,1 |
MBP81.88Z.0039.B0B.1006012305 |
64 |
3.0.0-13-generic |
16.76 |
3.0.0-13-generic |
15.84 |
7 |
Unity 3D |
Asus W5F |
307 |
32 |
3.0.0-12-generic |
12.69W |
3.0.0-13-generic |
12.47W |
||
Dell Latitude D620 |
OTD761 A02 |
32 |
3.0.0-12-generic |
22.27W ± 1.13 |
3.0.0-13-generic |
21.31W ± 0.20 |
3 |
|
Dell Latitude E6510 |
A03 |
32 |
3.0.0-13-generic-pae |
18.06 ± 1.13 |
3.0.0-13-generic-pae |
16.92 ± 0.99 |
||
Dell Vostro 3450 |
A07 |
32 |
3.0.0-12-generic-pae |
20.45 |
3.0.0-13-generic-pae |
19.55 |
||
Dell Inspiron 6400 |
A13 |
64 |
3.1.0-2-generic |
23.3W |
3.1.0-2-generic |
23.2W |
Unity 3D |
|
Dell Inspiron N4010 |
A13 |
64 |
3.1.0-2-generic |
1.21W |
3.1.0-2-generic |
0.95W |
1 |
|
Dell Studio 1558 |
A12 |
64 |
3.0.0-13-generic |
2.22W |
3.0.0-13-generic |
1.8W |
1 |
|
HP Mini 210 |
F0.2 |
64 |
3.0.0-12-generic |
14.3W |
3.0.0-13-generic |
8.7W |
Unity 3D |
|
HP Mini 210 |
F0.4 |
32 |
3.1.0-2-generic |
11.3W |
3.1.0-2-generic |
11.7W |
||
HP ProBook 5420s |
68AZZ Ver. F.0F |
64 |
3.0.0-12-generic |
25.06W |
3.0.0-13-generic |
25.66W |
||
Lenovo 3000N200 |
68ET27WW |
64 |
3.1.0-2-generic |
24.3W |
3.1.0-2-generic |
25.4W |
||
Lenovo IdeaPad S12 |
19CN1AWW |
32 |
3.0.0-13-generic |
10.65W |
3.0.0-13-generic |
10.67W |
2 |
|
Lenovo Thinkpad L520 |
8GET36WW(1.13) |
64 |
3.0.0-12-generic |
18,05W |
3.0.0-13-generic |
18,18W |
||
Lenovo ThinkPad T400 |
7UET92WW (3.22) |
64 |
3.0.0-12-generic |
18.07W |
3.0.0-13-generic |
18.10W |
6 |
|
Lenovo Thinkpad T420s (i915.i915_enable_rc6=1) |
8CET46WW (1.26) |
64 |
3.1.0-2-generic |
12.29W |
3.1.0-2-generic |
9.14W |
||
Lenovo Thinkpad T420s |
8CET48WW (1.28 ) |
64 |
3.0.0-12-generic |
22.56V |
3.0.0-13-generic |
19.54W |
||
Lenovo Thinkpad T510 |
6MET84WW (1.44) |
32 |
3.0.0-12-generic-pae |
16.03W |
3.0.0-13-generic-pae |
14.01W |
||
Lenovo Thinkpad T60 |
79ET62WW (1.07) |
32 |
3.0.0-13-generic |
22.17W ± 0.38W |
3.0.0-13-generic |
22.19W ± 0.36W |
4 |
|
Lenovo Thinkpad X201 |
6QET52WW (1.22 ) |
64 |
3.0.0-13.generic |
11.0 |
3.0.0-13.generic |
10.0 |
||
Lenovo Thinkpad X220 |
8DET41WW (1.11) |
64 |
3.0.0-13.generic |
21.4 |
3.0.0-13.generic |
19.9 |
||
Lenovo Thinkpad X220 |
8DET42WW (1.12) |
64 |
3.0.0-13.generic |
19.4 |
3.0.0-13.generic |
15.7 |
Unity 3d |
|
Lenovo Thinkpad X220T with SSD (i915.i915_enable_rc6=1 i915.i915_enable_fbc=1 i915.lvds_downclock=1) |
8DET49WW (1.19 ) |
64 |
3.0.0-13.generic |
9,08 |
3.0.0-13.generic |
6,24 |
Unity 3D |
|
Lenovo Thinkpad X301 |
6EET54WW (3.14 ) |
64 |
3.1.0-2-generic |
11.4W |
3.1.0-2-generic |
11.4W |
||
Lenovo Thinkpad X301 |
6EET44WW (3.04) |
64 |
3.1.0-2-generic |
10.4W |
3.1.0-2-generic |
10.4W |
||
Lenovo Thinkpad X60s |
7BETC7WW (2.08) |
32 |
3.0.0-13.generic |
13.76W |
3.0.0-13.generic |
13.81W |
||
Samsung NF310 |
03MY.M029.20101228.JIP |
64 |
3.0.0-13-generic |
6.81W |
3.0.0-13-generic |
6.14W |
||
Toshiba NB505 |
V1.90 |
64 |
3.0.0-13-generic |
7.98W |
3.0.0-13-generic |
7.92W |
||
Toshiba Satellite P100 PSPA3A-05S00P |
V3.30 |
32 |
3.0.0-12-generic |
26.49 |
3.0.0-13-generic+mjgaspmfix |
26.64W |
5 |
Notes:
- It is probable that these machines are incorrectly reporting power such that the value is reported as 1/10th of the actual.
- This variance (up) is likely within the accuracy of the figures for this machine.
- near-default power settings, no savings enabled
- With pcie_aspm=force and the original kernel this machine reports 18.84W ± 0.47W.
- This machine is from 2006 - not sure if this is still helpful
With pcie_aspm=force on 3.0.0-12-generic the consumption was 17.78W. Combining this with tlp reduced the consumption to 14.42W.
- Using nouveau instead of nvidia binary driver.
Kernel/PowerManagementASPM (last edited 2012-02-19 14:59:07 by AAnnecy-552-1-244-103)