A Proper Solution To The Linux ASPM Problem

[phoronix]

Phoronix: A Proper Solution To The Linux ASPM Problem

At long last, it looks like there is an adequate solution to the Active State Power Management (ASPM) problem in the Linux kernel , a.k.a. the well-known and wide-spread power regression in the Linux 2.6.38 kernel, which has been causing many laptops to go through significantly more power than they should. This is not another workaround, but rather a behavioral change in the kernel to better decide when the PCI Express ASPM support should be toggled.

http://www.phoronix.com/vr.php?view=16682

[Drago]

What a relief. I am happy today

[AlbertP]

Finally.

Actually I was planning to e-mail LKML with my solution to the problem, a white-list of ASPM supported devices on computers with a proper BIOS, which could be collected through Phoronix Test Suite.

[wpoely86]

Other regressions

[quote]
That's one regression now addressed, with only several more power management issues left in the kernel...
[\quote]

Did you find those other regressions with git-bisect?

[LinuxID10T]

'Bout fuckin' time! Seriously, this should have been fixed way earlier. If you introduce a regression, you revert to previous version, too bad the kernel devs don't get that...

[FireBurn]

'Bout fuckin' time! Seriously, this should have been fixed way earlier. If you introduce a regression, you revert to previous version, too bad the kernel devs don't get that...

That's what they did do. They introduced a power regression to get rid of a stability regression. It was the lesser of two evils until they came up with a proper solution ie try any copy what windows does

[89c51]

Michael what are the other power regressions you mention in the article?

[Michael]

Michael what are the other power regressions you mention in the article?

I'm not permitted to publicly talk about them at the moment.

[Apopas]

I'm not permitted to publicly talk about them at the moment.

Huh? Is some kind of vendor who forbids this???

[89c51]

I'm not permitted to publicly talk about them at the moment.

weird.

at least can you answer if they are taken care of???