Debian Bug report logs - #935036
overview power estimations obviously wrong

Reply or subscribe to this bug.

Display info messages

Message #5 received at [email protected] (full text, mbox, reply):

From: Marc Haber <[email protected]>

To: Debian Bug Tracking System <[email protected]>

Subject: overview power estimations obviously wrong

Date: Sun, 18 Aug 2019 14:27:50 +0200

Package: powertop
Version: 2.10-1
Severity: normal

Hi,

this is what Powertop shows on my X260:

|PowerTOP v2.10    Overview   Idle stats   Frequency stats   Device stats   Tuna
|
|The battery reports a discharge rate of 6.35 W
|The power consumed was 138 J
|The estimated remaining time is 2 hours, 45 minutes
|
|Summary: 672,4 wakeups/second,  0,0 GPU ops/seconds, 0,0 VFS ops/sec and 4,5% C
|
|Power est.              Usage       Events/s    Category       Description
|  10.1 W      0,9 pkts/s                Device         nic:tun0
|  3.33 W     42,0%                      Device         Display backlight
| 75.6 mW      0,0 us/s      0,00        Process        [PID 11844] /usr/sbin/pc
|  598 uW      7,9 ms/s      17,7        Process        [PID 9789] /usr/lib/fire
|  387 uW      5,1 ms/s      20,9        Process        [PID 8710] /usr/bin/plas
|  253 uW      3,3 ms/s      48,4        Process        [PID 8807] /usr/lib/fire
|  225 uW      3,0 ms/s       4,5        Process        [PID 9417] /usr/lib/fire
|  217 uW      2,9 ms/s      76,9        Timer          hrtimer_wakeup

I fail to see how a nearly idle tunnel interface can take > 10 Watts.
This must be wrong.

Greetings
Marc

-- System Information:
Debian Release: bullseye/sid
  APT prefers unstable
  APT policy: (500, 'unstable')
Architecture: amd64 (x86_64)
Foreign Architectures: i386

Kernel: Linux 5.2.9-zgws1 (SMP w/4 CPU cores)
Kernel taint flags: TAINT_OOT_MODULE
Locale: LANG=de_DE.utf8, LC_CTYPE=de_DE.utf8 (charmap=UTF-8), LANGUAGE=en (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash
Init: systemd (via /run/systemd/system)

Versions of packages powertop depends on:
ii  libc6             2.28-10
ii  libgcc1           1:9.2.1-1
ii  libncursesw6      6.1+20190803-1
ii  libnl-3-200       3.4.0-1
ii  libnl-genl-3-200  3.4.0-1
ii  libpci3           1:3.6.2-2
ii  libstdc++6        9.2.1-1
ii  libtinfo6         6.1+20190803-1

powertop recommends no packages.

Versions of packages powertop suggests:
ii  cpufrequtils       008-1.1
pn  laptop-mode-tools  <none>

-- no debconf information

Send a report that this bug log contains spam.