[ltp] ACPI and CPU issues on Thinkpad X220 running Debian GNU/Linux

Oscar Frasciello linux-thinkpad@linux-thinkpad.org
Fri, 16 Sep 2011 09:33:59 +0200


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Hi there=2C
is there any progress about this thread?
Thanks to all
Oscar

From: lancelot1981@hotmail.it
To: linux-thinkpad@linux-thinkpad.org
Subject: RE: [ltp] ACPI and CPU issues on Thinkpad X220 running Debian GNU/=
Linux
Date: Sun=2C 4 Sep 2011 11:43:29 +0200








Dear Kumar=2C
i've powertop version 1.97-2 from Debian wheezy repos.
Thanks
Oscar
> From: a.kumar@alumni.iitm.ac.in
> To: linux-thinkpad@linux-thinkpad.org
> Subject: Re: [ltp] ACPI and CPU issues on Thinkpad X220 running Debian GN=
U/Linux
> Date: Fri=2C 2 Sep 2011 19:24:47 -0500
>=20
> On Fri=2C Sep 02=2C 2011 at 02:58:31PM +0200=2C Oscar Frasciello wrote:
> >    Dear Kumar=2C
> >    thanks for your prompt reply.
> >    Kernel version is  2.6.39-2-amd64 and it does see all cores=2C indee=
d at
> >    boot time
> >    it loads CPU0=2C CPU1=2C CPU2=2C CPU3. The same=2C however=2C happen=
s also with
> >    kernel
> >    3.0.
>=20
> OK=2C my computer has 2.6.39-bpo.2-amd64 and I also see this on
> powertop's idle stats:
>=20
>           Package   |             Core    |             CPU 0            =
   CPU 1
> POLL        0.1%    | POLL        0.1%    | POLL        0.0%    0.2 ms   =
   0.1%    5.1 ms
> C1          1.6%    | C1          3.1%    | C1          3.1%    0.4 ms   =
   3.0%    0.3 ms
> C2         95.8%    | C2         92.2%    | C2         90.6%    1.6 ms   =
  93.9%    4.7 ms
>=20
>                     |             Core    |             CPU 2            =
   CPU 3
>                     | POLL        0.2%    | POLL        0.3%   34.2 ms   =
   0 .0%    0.0 ms
>                     | C1          0.1%    | C1          0.1%    0.7 ms   =
   0.1%    0.7 ms
>                     | C2         99.4%    | C2         99.1%   60.9 ms   =
  99.6%   59.7 ms
>=20
> Please note that I use powertop 1.97. Could you please let me know
> which version of powertop you use?
>=20
> Thanks.
>=20
> Kumar
> --=20
> Kumar Appaiah
> --=20
> The linux-thinkpad mailing list home page is at:
> http://mailman.linux-thinkpad.org/mailman/listinfo/linux-thinkpad
 		 	   		   		 	   		  =

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Hi there=2C<br>is there any progress about this thread?<br>Thanks to all<br=
>Oscar<br><br><div><hr id=3D"stopSpelling">From: lancelot1981@hotmail.it<br=
>To: linux-thinkpad@linux-thinkpad.org<br>Subject: RE: [ltp] ACPI and CPU i=
ssues on Thinkpad X220 running Debian GNU/Linux<br>Date: Sun=2C 4 Sep 2011 =
11:43:29 +0200<br><br>

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<div dir=3D"ltr">
Dear Kumar=2C<br>i've powertop version 1.97-2 from Debian wheezy repos.<br>=
Thanks<br>Oscar<br><div>&gt=3B From: a.kumar@alumni.iitm.ac.in<br>&gt=3B To=
: linux-thinkpad@linux-thinkpad.org<br>&gt=3B Subject: Re: [ltp] ACPI and C=
PU issues on Thinkpad X220 running Debian GNU/Linux<br>&gt=3B Date: Fri=2C =
2 Sep 2011 19:24:47 -0500<br>&gt=3B <br>&gt=3B On Fri=2C Sep 02=2C 2011 at =
02:58:31PM +0200=2C Oscar Frasciello wrote:<br>&gt=3B &gt=3B    Dear Kumar=
=2C<br>&gt=3B &gt=3B    thanks for your prompt reply.<br>&gt=3B &gt=3B    K=
ernel version is&nbsp=3B 2.6.39-2-amd64 and it does see all cores=2C indeed=
 at<br>&gt=3B &gt=3B    boot time<br>&gt=3B &gt=3B    it loads CPU0=2C CPU1=
=2C CPU2=2C CPU3. The same=2C however=2C happens also with<br>&gt=3B &gt=3B=
    kernel<br>&gt=3B &gt=3B    3.0.<br>&gt=3B <br>&gt=3B OK=2C my computer =
has 2.6.39-bpo.2-amd64 and I also see this on<br>&gt=3B powertop's idle sta=
ts:<br>&gt=3B <br>&gt=3B           Package   |             Core    |       =
      CPU 0               CPU 1<br>&gt=3B POLL        0.1%    | POLL       =
 0.1%    | POLL        0.0%    0.2 ms      0.1%    5.1 ms<br>&gt=3B C1     =
     1.6%    | C1          3.1%    | C1          3.1%    0.4 ms      3.0%  =
  0.3 ms<br>&gt=3B C2         95.8%    | C2         92.2%    | C2         9=
0.6%    1.6 ms     93.9%    4.7 ms<br>&gt=3B <br>&gt=3B                    =
 |             Core    |             CPU 2               CPU 3<br>&gt=3B   =
                  | POLL        0.2%    | POLL        0.3%   34.2 ms      0=
 .0%    0.0 ms<br>&gt=3B                     | C1          0.1%    | C1    =
      0.1%    0.7 ms      0.1%    0.7 ms<br>&gt=3B                     | C2=
         99.4%    | C2         99.1%   60.9 ms     99.6%   59.7 ms<br>&gt=
=3B <br>&gt=3B Please note that I use powertop 1.97. Could you please let m=
e know<br>&gt=3B which version of powertop you use?<br>&gt=3B <br>&gt=3B Th=
anks.<br>&gt=3B <br>&gt=3B Kumar<br>&gt=3B -- <br>&gt=3B Kumar Appaiah<br>&=
gt=3B -- <br>&gt=3B The linux-thinkpad mailing list home page is at:<br>&gt=
=3B http://mailman.linux-thinkpad.org/mailman/listinfo/linux-thinkpad<br></=
div> 		 	   		  </div></div> 		 	   		  </div></body>
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