Bug 1053943 - Abnormally high power consumption on ethernet device eth0(p5p1) indicated by Powertop
Summary: Abnormally high power consumption on ethernet device eth0(p5p1) indicated by ...
Keywords:
Status: CLOSED EOL
Alias: None
Product: Fedora
Classification: Fedora
Component: powertop
Version: 20
Hardware: Unspecified
OS: Unspecified
unspecified
unspecified
Target Milestone: ---
Assignee: Jaroslav Škarvada
QA Contact: Fedora Extras Quality Assurance
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2014-01-16 03:15 UTC by Zhiyuan Ma
Modified: 2015-06-29 14:29 UTC (History)
5 users (show)

Fixed In Version:
Doc Type: Bug Fix
Doc Text:
Clone Of:
Environment:
Last Closed: 2015-06-29 14:29:26 UTC
Type: Bug
Embargoed:


Attachments (Terms of Use)

Description Zhiyuan Ma 2014-01-16 03:15:25 UTC
Description of problem:

The network device eth0 (p5p1) is consuming significant amount of power, when no wired connection.

This can be seen in the powertop report below:

Power Consumption Summary

651.0 wakeups/second, 11.2 GPU ops/second, 0.0 VFS ops/sec, 9.7 GFX wakes/sec and 8.4% CPU use
Power est. 	Usage 	Events/s 	Category 	Description
12.4 W 	100.0% 		Device 	Display backlight
8.15 W 	0.0 pkts/s 		Device 	Network interface: eth0 (r8169)
830 mW 	1.6% 	237.9 	Process 	/usr/bin/pulseaudio --start
175 mW 	2.6% 	91.5 	Process 	skype
93.9 mW 	1.4% 	35.5 	Process 	/usr/bin/gnome-shell
51.9 mW 	0.8% 	0.9 	Process 	gnome-shell
44.8 mW 	0.7% 	13.9 	Process 	elegance-colors
21.2 mW 	1.9 pkts/s 		Device 	Network interface: wlo1 (ath9k)
15.1 mW 	0.2% 	16.8 	Process 	/usr/lib64/firefox/firefox
10.0 mW 	0.1% 	77.4 	Timer 	hrtimer_wakeup
8.95 mW 	0.1% 	3.0 	Process 	/usr/bin/Xorg :0 -background none -verbose -auth /run/gdm/auth-for-gdm-6AnIFT/database -seat seat0 -nolisten tcp vt1 


Version-Release number of selected component (if applicable):

the device driver is r8169

uname -a gives:
Linux ma-fedora 3.12.7-300.fc20.x86_64 #1 SMP Fri Jan 10 15:35:31 UTC 2014 x86_64 x86_64 x86_64 GNU/Linux

lshw gives:


 *-network
       description: Ethernet interface
       product: RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller
       vendor: Realtek Semiconductor Co., Ltd.
       physical id: 0
       bus info: pci@0000:05:00.0
       logical name: eth0
       version: 07
       serial: [REMOVED]
       size: 10Mbit/s
       capacity: 1Gbit/s
       width: 64 bits
       clock: 33MHz
       capabilities: bus_master cap_list ethernet physical tp mii 10bt 10bt-fd 100bt 100bt-fd 1000bt 1000bt-fd autonegotiation
       configuration: autonegotiation=on broadcast=yes driver=r8169 driverversion=2.3LK-NAPI duplex=half firmware=rtl8168e-3_0.0.4 03/27/12 latency=0 link=no multicast=yes port=MII speed=10Mbit/s
       resources: irq:50 ioport:2000(size=256) memory:d0404000-d0404fff memory:d0400000-d0403fff




How reproducible: Every time


Steps to Reproduce:
1. Boot to fedora 20
2. NO lan cable is plugged in
3. open Powertop and see the abnormal result

Actual results:

Network devcie eth0 consume a lot of power

Expected results:

much less power (less then 1 W I believe, which is what I remember for my old fedora18 installation) is consumed by eth0, 

Additional info:

Comment 1 Jaromír Cápík 2014-01-16 18:11:12 UTC
Hello.

I'm unsure whether 'ethtool' is the right component for this report. I would start with the 'powertop' tool so that we know why it shows such values. Maybe it's a matter of calibration only. I'm switching the component to powertop.

Regards,
Jaromir.

Comment 2 Fedora End Of Life 2015-05-29 10:31:28 UTC
This message is a reminder that Fedora 20 is nearing its end of life.
Approximately 4 (four) weeks from now Fedora will stop maintaining
and issuing updates for Fedora 20. It is Fedora's policy to close all
bug reports from releases that are no longer maintained. At that time
this bug will be closed as EOL if it remains open with a Fedora  'version'
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Comment 3 Fedora End Of Life 2015-06-29 14:29:26 UTC
Fedora 20 changed to end-of-life (EOL) status on 2015-06-23. Fedora 20 is
no longer maintained, which means that it will not receive any further
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