[ltp] ACPI and CPU issues on Thinkpad X220 running Debian
GNU/Linux
Oscar Frasciello
linux-thinkpad@linux-thinkpad.org
Sun, 4 Sep 2011 11:43:29 +0200
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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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Dear Kumar=2C<br>i've powertop version 1.97-2 from Debian wheezy repos.<br>=
Thanks<br>Oscar<br><div>>=3B From: a.kumar@alumni.iitm.ac.in<br>>=3B To=
: linux-thinkpad@linux-thinkpad.org<br>>=3B Subject: Re: [ltp] ACPI and C=
PU issues on Thinkpad X220 running Debian GNU/Linux<br>>=3B Date: Fri=2C =
2 Sep 2011 19:24:47 -0500<br>>=3B <br>>=3B On Fri=2C Sep 02=2C 2011 at =
02:58:31PM +0200=2C Oscar Frasciello wrote:<br>>=3B >=3B Dear Kumar=
=2C<br>>=3B >=3B thanks for your prompt reply.<br>>=3B >=3B K=
ernel version is =3B 2.6.39-2-amd64 and it does see all cores=2C indeed=
at<br>>=3B >=3B boot time<br>>=3B >=3B it loads CPU0=2C CPU1=
=2C CPU2=2C CPU3. The same=2C however=2C happens also with<br>>=3B >=3B=
kernel<br>>=3B >=3B 3.0.<br>>=3B <br>>=3B OK=2C my computer =
has 2.6.39-bpo.2-amd64 and I also see this on<br>>=3B powertop's idle sta=
ts:<br>>=3B <br>>=3B Package | Core | =
CPU 0 CPU 1<br>>=3B POLL 0.1% | POLL =
0.1% | POLL 0.0% 0.2 ms 0.1% 5.1 ms<br>>=3B C1 =
1.6% | C1 3.1% | C1 3.1% 0.4 ms 3.0% =
0.3 ms<br>>=3B C2 95.8% | C2 92.2% | C2 9=
0.6% 1.6 ms 93.9% 4.7 ms<br>>=3B <br>>=3B =
| Core | CPU 2 CPU 3<br>>=3B =
| POLL 0.2% | POLL 0.3% 34.2 ms 0=
.0% 0.0 ms<br>>=3B | C1 0.1% | C1 =
0.1% 0.7 ms 0.1% 0.7 ms<br>>=3B | C2 =
99.4% | C2 99.1% 60.9 ms 99.6% 59.7 ms<br>>=3B=
<br>>=3B Please note that I use powertop 1.97. Could you please let me k=
now<br>>=3B which version of powertop you use?<br>>=3B <br>>=3B Thank=
s.<br>>=3B <br>>=3B Kumar<br>>=3B -- <br>>=3B Kumar Appaiah<br>>=
=3B -- <br>>=3B The linux-thinkpad mailing list home page is at:<br>>=
=3B http://mailman.linux-thinkpad.org/mailman/listinfo/linux-thinkpad<br></=
div> </div></body>
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