lkml.org 
[lkml]   [2013]   [Jul]   [9]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: /sys/module/pcie_aspm/parameters/policy not writable?
Hi!

> > My thinkpad has rather high ping latencies... and perhaps it is due to
> > PCIE ASPM.
>
> Why would that be the problem? The odds that the PCIE bus is the issue
> seems strange to me.

Well, I google a bit. Apparently, the issue is common on x60/t60
machine and was never fixed properly.

And indeed some patches point in that direction, in particular:

https://launchpadlibrarian.net/17463623/e1000e-0.4.1.7.diff

(It is from comment #27 here:

https://bugs.launchpad.net/ubuntu/+source/linux-source-2.6.22/+bug/42572

).

If you have any idea what else it could be...
Pavel
--
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html


\
 
 \ /
  Last update: 2013-07-10 23:30    [W:0.201 / U:0.124 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site