From: Rony Ross <rony.ross at gmail.com>
To: powertop@lists.01.org
Subject: [Powertop] Package C states over Haswell platform
Date: Tue, 28 Oct 2014 18:20:31 +0200 [thread overview]
Message-ID: <002401cff2cb$1aeaebc0$50c0c340$@gmail.com> (raw)
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Hi,
I'm working on DELL E7440 platform (Haswell based) with dual OS: Windows 8.1
and Ubuntu 14.04.1 (based on 3.13).
When I use Win 8.1, using BLA I get ~90% PC7 when idle. However, when I use
the Ubuntu, using powertop I get only as high as PC3.
Since it's the same platform, it seems to rule out a HW issue. Any idea what
can be the problem? Is Haswell fully supported by powertop?
Package | Core | CPU 0 CPU 2
| | C0 active 0.2% 0.1%
| | POLL 0.0% 0.0 ms 0.0%
0.0 ms
| | C1E-HSW 0.0% 0.1 ms 0.0%
0.0 ms
C2 (pc2) 0.1% | |
C3 (pc3) 3.7% | C3 (cc3) 0.0% | C3-HSW 0.0% 0.4 ms 0.0%
0.4 ms
C6 (pc6) 0.0% | C6 (cc6) 0.0% | C6-HSW 0.0% 0.0 ms 0.0%
0.2 ms
C7 (pc7) 0.0% | C7 (cc7) 99.0% | C7s-HSW 0.1% 0.9 ms 0.1%
1.8 ms
C8 (pc8) 0.0% | | C8-HSW 0.1% 1.4 ms 0.2%
2.5 ms
C9 (pc9) 0.0% | | C9-HSW 0.4% 4.0 ms 2.3%
8.0 ms
C10 (pc10) 0.0% | | C10-HSW 98.9% 44.5 ms 97.0%
36.5 ms
| Core | CPU 1 CPU 3
| | C0 active 0.2% 0.1%
| | POLL 0.0% 0.0 ms 0.0%
0.0 ms
| | C1E-HSW 0.0% 0.0 ms 1.0%
50.1 ms
| |
| C3 (cc3) 0.0% | C3-HSW 0.0% 0.7 ms 0.0%
0.6 ms
| C6 (cc6) 0.0% | C6-HSW 0.0% 0.5 ms 0.0%
0.0 ms
| C7 (cc7) 98.0% | C7s-HSW 0.1% 0.7 ms 0.4%
25.7 ms
| | C8-HSW 0.0% 4.9 ms 0.0%
1.5 ms
| | C9-HSW 0.6% 4.7 ms 0.7%
19.5 ms
| | C10-HSW 98.5% 93.5 ms 97.8%
78.0 ms
| GPU |
| |
| Powered On 12.1% |
| RC6 87.9% |
| RC6p 0.0% |
| RC6pp 0.0% |
Thanks
Rony
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next reply other threads:[~2014-10-28 16:20 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-10-28 16:20 Rony Ross [this message]
-- strict thread matches above, loose matches on Subject: below --
2014-10-28 16:45 [Powertop] Package C states over Haswell platform Arjan van de Ven
2014-10-28 18:04 Kalowsky, Daniel
2014-10-29 3:37 Alexandra Yates
2014-10-29 3:57 Alexandra Yates
2014-10-29 12:23 Rony Ross
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