1:46 a.m.
Did anybody observed this issue?
-------- Original Message --------
Subject: powertop 2.4 questions
Date: Tue, 17 Sep 2013 10:14:49 -0700
From: Marc MERLIN <marc(a)merlins.org>
To: srinivas.pandruvada(a)linux.intel.com
Hi Srinivas,
As discussed, I have a couple of powertop questions, thanks for passing
them on.
I did try the mailing list:
Date: Fri, 2 Aug 2013 10:27:38 -0700
From: Marc MERLIN <marc_powertop(a)merlins.org>
To: powertop(a)ml01.01.org
but I never heard anything back. Is the list mostly dead, or is there
another list?
So, I got powertop 2.4 from
https://01.org/powertop/downloads/2013/powertop-v2.4
Like I showed you on my laptop, when I go left and right with my arrows,
I'm on the Overview screen, and I can't move to Idle stats or Freq stats
like I could in older powertops:
----------------------------------------------------------------------------
PowerTOP 2.4 Overview Idle stats Frequency stats Device stats Tunables
Summary: 1862.8 wakeups/second, 5.9 GPU ops/seconds, 0.0 VFS ops/sec and 26.5% CPU use
Power est. Usage Events/s Category Description
3.30 W 9.8% Device Display backlight
2.67 W 0.0 pkts/s Device Network interface: wlan0
(iwlwifi)
1.34 W 100.0% Device USB device: Integrated Camera
(Chicony Ele
957 mW 4.2 ms/s 43.4 Process /usr/bin/pulseaudio --start
635 mW 154.3 ms/s 1229.7 Process /usr/bin/enlightenment
----------------------------------------------------------------------------
Separately, it reports this:
1.25 W 100.0% Device USB device: Integrated Camera (Chicony Electronics Co.,
Ltd.)
It's on a thinkpad T530. I haven't found a way to stop that.
I've unloaded the uvcvideo driver, but generally haven't found
anything else I can do.
If you have any ideas, it would be greatly appreciated.
Thanks,
Marc
--
"A mouse is a device used to point at the xterm you want to type in" - A.S.R.
Microsoft is to operating systems ....
.... what McDonalds is to gourmet cooking
Home page: http://marc.merlins.org/ | PGP 1024R/763BE901
4:33 a.m.
New subject: [Powertop] Fwd: powertop 2.4 questions
On (09/18/13 08:46), Srinivas Pandruvada wrote:
Did anybody observed this issue?
-------- Original Message --------
Subject: powertop 2.4 questions
Date: Tue, 17 Sep 2013 10:14:49 -0700
From: Marc MERLIN [1]<marc(a)merlins.org>
To: [2]srinivas.pandruvada(a)linux.intel.com
Hi Srinivas,
As discussed, I have a couple of powertop questions, thanks for passing
them on.
I did try the mailing list:
Date: Fri, 2 Aug 2013 10:27:38 -0700
From: Marc MERLIN [3]<marc_powertop(a)merlins.org>
To: [4]powertop(a)ml01.01.org
but I never heard anything back. Is the list mostly dead, or is there
another list?
So, I got powertop 2.4 from
[5]https://01.org/powertop/downloads/2013/powertop-v2.4
Like I showed you on my laptop, when I go left and right with my arrows,
I'm on the Overview screen, and I can't move to Idle stats or Freq stats
like I could in older powertops:
in order to move between tabs use TAB button.
-ss
----------------------------------------------------------------------------
PowerTOP 2.4 Overview Idle stats Frequency stats Device stats Tunables
Summary: 1862.8 wakeups/second, 5.9 GPU ops/seconds, 0.0 VFS ops/sec and 26.5% CPU use
Power est. Usage Events/s Category Description
3.30 W 9.8% Device Display backlight
2.67 W 0.0 pkts/s Device Network interface: wlan0
(iwlwifi)
1.34 W 100.0% Device USB device: Integrated Camera
(Chicony Ele
957 mW 4.2 ms/s 43.4 Process /usr/bin/pulseaudio --start
635 mW 154.3 ms/s 1229.7 Process /usr/bin/enlightenment
----------------------------------------------------------------------------
Separately, it reports this:
1.25 W 100.0% Device USB device: Integrated Camera (Chicony Electronics Co.,
Ltd.)
It's on a thinkpad T530. I haven't found a way to stop that.
I've unloaded the uvcvideo driver, but generally haven't found
anything else I can do.
If you have any ideas, it would be greatly appreciated.
Thanks,
Marc
--
"A mouse is a device used to point at the xterm you want to type in" - A.S.R.
Microsoft is to operating systems ....
.... what McDonalds is to gourmet cooking
Home page: [6]http://marc.merlins.org/ | PGP 1024R/763BE901
References
Visible links
1. mailto:marc@merlins.org
2. mailto:srinivas.pandruvada@linux.intel.com
3. mailto:marc_powertop@merlins.org
4. mailto:powertop@ml01.01.org
5. https://01.org/powertop/downloads/2013/powertop-v2.4
6. http://marc.merlins.org/
_______________________________________________
PowerTop mailing list
PowerTop(a)lists.01.org
https://lists.01.org/mailman/listinfo/powertop
5:29 a.m.
New subject: [Powertop] Fwd: powertop 2.4 questions
On Wed, Sep 18, 2013 at 09:33:53PM +0300, Sergey Senozhatsky wrote:
> So, I got powertop 2.4 from
> [5]https://01.org/powertop/downloads/2013/powertop-v2.4
>
> Like I showed you on my laptop, when I go left and right with my arrows,
> I'm on the Overview screen, and I can't move to Idle stats or Freq stats
> like I could in older powertops:
in order to move between tabs use TAB button.
That works indeed, I didn't realize it changed.
Thanks,
Marc
--
"A mouse is a device used to point at the xterm you want to type in" - A.S.R.
Microsoft is to operating systems ....
.... what McDonalds is to gourmet cooking
Home page: http://marc.merlins.org/ | PGP 1024R/763BE901
5:42 a.m.
New subject: [Powertop] Fwd: powertop 2.4 questions
On Wed, Sep 18, 2013 at 12:29 PM, Marc MERLIN <marc_powertop(a)merlins.org> wrote:
On Wed, Sep 18, 2013 at 09:33:53PM +0300, Sergey Senozhatsky wrote:
> > So, I got powertop 2.4 from
> > [5]https://01.org/powertop/downloads/2013/powertop-v2.4
> >
> > Like I showed you on my laptop, when I go left and right with my arrows,
> > I'm on the Overview screen, and I can't move to Idle stats or Freq
stats
> > like I could in older powertops:
>
> in order to move between tabs use TAB button.
That works indeed, I didn't realize it changed.
I think Chris had to do that since he implemented scrollable ncurses
windows, and you need up/down/left/right to move the viewport around.
It's been a while that this code was in and the announcement went
out... sadly it's hard to get distros to pick up details like that.
Auke
5:53 a.m.
New subject: [Powertop] Fwd: powertop 2.4 questions
On Wed, Sep 18, 2013 at 12:42:17PM -0700, Kok, Auke-jan H wrote:
On Wed, Sep 18, 2013 at 12:29 PM, Marc MERLIN
<marc_powertop(a)merlins.org> wrote:
> On Wed, Sep 18, 2013 at 09:33:53PM +0300, Sergey Senozhatsky wrote:
>> > So, I got powertop 2.4 from
>> > [5]https://01.org/powertop/downloads/2013/powertop-v2.4
>> >
>> > Like I showed you on my laptop, when I go left and right with my arrows,
>> > I'm on the Overview screen, and I can't move to Idle stats or Freq
stats
>> > like I could in older powertops:
>>
>> in order to move between tabs use TAB button.
>
> That works indeed, I didn't realize it changed.
I think Chris had to do that since he implemented scrollable ncurses
windows, and you need up/down/left/right to move the viewport around.
It's been a while that this code was in and the announcement went
out... sadly it's hard to get distros to pick up details like that.
No worries at all, it happens :)
By the way, my more nagging question was, how can I stop the built in camera
in my T530 from taking so much power? (I'm sure the number is wrong, but still)
The battery reports a discharge rate of 18.4 W
The estimated remaining time is 4 hours, 18 minutes
Summary: 657.6 wakeups/second, 28.4 GPU ops/seconds, 0.0 VFS ops/sec and 9.3% CPU use
Power est. Usage Events/s Category Description
12.2 W 100.0% Device USB device: Integrated Camera (Chicony
Electronics Co., Ltd.)
997 mW 60.0% Device Display backlight
76.1 mW 34.9 µs/s 34.8 Process [rcu_preempt]
23.1 mW 1.5 ms/s 16.5 Process xfce4-terminal -T window11
--role=window11
9.20 mW 59.0 ms/s 347.4 Process /usr/bin/enlightenment
Note that tunables says:
Good Autosuspend for USB device Integrated Camera [Chicony Electronics Co.,
Ltd.]
Kernel 3.10.6.
Any ideas?
Thanks,
Marc
--
"A mouse is a device used to point at the xterm you want to type in" - A.S.R.
Microsoft is to operating systems ....
.... what McDonalds is to gourmet cooking
Home page: http://marc.merlins.org/ | PGP 1024R/763BE901
12:38 a.m.
New subject: [Powertop] Fwd: powertop 2.4 questions
On Thu, Sep 19, 2013 at 2:53 AM, Marc MERLIN <marc_powertop(a)merlins.org> wrote:
By the way, my more nagging question was, how can I stop the built in
camera
in my T530 from taking so much power? (I'm sure the number is wrong, but still)
How about unloading/blacklisting its driver?
The battery reports a discharge rate of 18.4 W
The estimated remaining time is 4 hours, 18 minutes
Summary: 657.6 wakeups/second, 28.4 GPU ops/seconds, 0.0 VFS ops/sec and 9.3% CPU use
Power est. Usage Events/s Category Description
12.2 W 100.0% Device USB device: Integrated Camera (Chicony
Electronics Co., Ltd.)
997 mW 60.0% Device Display backlight
76.1 mW 34.9 µs/s 34.8 Process [rcu_preempt]
23.1 mW 1.5 ms/s 16.5 Process xfce4-terminal -T window11
--role=window11
9.20 mW 59.0 ms/s 347.4 Process /usr/bin/enlightenment
Note that tunables says:
Good Autosuspend for USB device Integrated Camera [Chicony Electronics Co.,
Ltd.]
Kernel 3.10.6.
Any ideas?
Thanks,
Marc
1:22 p.m.
New subject: [Powertop] Fwd: powertop 2.4 questions
On Thu, Sep 19, 2013 at 09:38:22PM +0700, Andika Triwidada wrote:
On Thu, Sep 19, 2013 at 2:53 AM, Marc MERLIN
<marc_powertop(a)merlins.org> wrote:
> By the way, my more nagging question was, how can I stop the built in camera
> in my T530 from taking so much power? (I'm sure the number is wrong, but still)
How about unloading/blacklisting its driver?
That didn't help.
It might work if I blacklist the driver and never use it after boot, but
that's not super compatible with google talk/hangouts.
That said, if I can't get the driver/device to behave, I might do that.
Marc
--
"A mouse is a device used to point at the xterm you want to type in" - A.S.R.
Microsoft is to operating systems ....
.... what McDonalds is to gourmet cooking
Home page: http://marc.merlins.org/ | PGP 1024R/763BE901
9:54 a.m.
New subject: [Powertop] USB devices get wrong power use values
So, I asked on the linux-usb list, and one thing I quickly found out is that the
Watt value given by powertop 2.4 is way off for USB devices:
Alan Stern wrote the following:
Do you have a bug on powertop 2.4 mis-calculating USB power use, both when
power is plugged in and when it's not?
Thanks,
Marc
On Sun, Sep 22, 2013 at 12:38:56PM -0400, Alan Stern wrote:
> > gandalfthegreat:/sys/bus/usb/devices/3-1.6/power# grep . *
> > active_duration:61227648
> > async:enabled
> > autosuspend:2
> > autosuspend_delay_ms:2000
> > connected_duration:66830880
> > control:auto
> > level:auto
> > persist:1
> > runtime_active_kids:0
> > runtime_active_time:18870052
> > runtime_enabled:enabled
> > runtime_status:active
> > runtime_suspended_time:5324088
> > runtime_usage:0
>
> This all looks correct.
Since then, I've confirmed that I don't have the problem some time after
reboot. It may be that the device doesn't seem to sleep well after I've used
it once.
What's interesting, is that I see this when power is plugged in:
Power est. Events/s Category Description
8.18 W 100.0% Device USB device: Yubico Yubikey II (Yubico)
8.13 W 100.0% Device USB device: Integrated Camera (Chicony Electronics
Co., Ltd.)
Once I go to batteries, I see this:
Summary: 760.1 wakeups/second, 718.9 GPU ops/seconds, 0.0 VFS ops/sec and 6.9% CPU use
Power est. Usage Events/s Category Description
8.32 W 100.0% Device USB device: Yubico Yubikey II
(Yubico)
2.52 W 73.3% Device Display backlight
Somehow I know that my Yubikey isn't using 8W, so powertop numbers need to
be taken with a grain of salt.
I don't know where powertop gets its numbers from. Perhaps it uses the
value reported by the device (bMaxPower). That value is only a
maximum; it doesn't change to reflect the actual usage.
--
"A mouse is a device used to point at the xterm you want to type in" - A.S.R.
Microsoft is to operating systems ....
.... what McDonalds is to gourmet cooking
Home page: http://marc.merlins.org/
10:16 p.m.
New subject: [Powertop] USB devices get wrong power use values
On (09/22/13 16:54), Marc MERLIN wrote:
So, I asked on the linux-usb list, and one thing I quickly found out
is that the
Watt value given by powertop 2.4 is way off for USB devices:
Alan Stern wrote the following:
Do you have a bug on powertop 2.4 mis-calculating USB power use, both when
power is plugged in and when it's not?
powertop uses
/sys/bus/usb/devices/%s/power/active_duration
and
/sys/bus/usb/devices/%s/power/connected_duration
-ss
Thanks,
Marc
On Sun, Sep 22, 2013 at 12:38:56PM -0400, Alan Stern wrote:
> > > gandalfthegreat:/sys/bus/usb/devices/3-1.6/power# grep . *
> > > active_duration:61227648
> > > async:enabled
> > > autosuspend:2
> > > autosuspend_delay_ms:2000
> > > connected_duration:66830880
> > > control:auto
> > > level:auto
> > > persist:1
> > > runtime_active_kids:0
> > > runtime_active_time:18870052
> > > runtime_enabled:enabled
> > > runtime_status:active
> > > runtime_suspended_time:5324088
> > > runtime_usage:0
> >
> > This all looks correct.
>
> Since then, I've confirmed that I don't have the problem some time after
> reboot. It may be that the device doesn't seem to sleep well after I've
used
> it once.
>
> What's interesting, is that I see this when power is plugged in:
>
> Power est. Events/s Category Description
> 8.18 W 100.0% Device USB device: Yubico Yubikey II (Yubico)
> 8.13 W 100.0% Device USB device: Integrated Camera (Chicony
Electronics Co., Ltd.)
>
> Once I go to batteries, I see this:
> Summary: 760.1 wakeups/second, 718.9 GPU ops/seconds, 0.0 VFS ops/sec and 6.9% CPU
use
>
> Power est. Usage Events/s Category Description
> 8.32 W 100.0% Device USB device: Yubico Yubikey II
(Yubico)
> 2.52 W 73.3% Device Display backlight
>
> Somehow I know that my Yubikey isn't using 8W, so powertop numbers need to
> be taken with a grain of salt.
I don't know where powertop gets its numbers from. Perhaps it uses the
value reported by the device (bMaxPower). That value is only a
maximum; it doesn't change to reflect the actual usage.
--
"A mouse is a device used to point at the xterm you want to type in" - A.S.R.
Microsoft is to operating systems ....
.... what McDonalds is to gourmet cooking
Home page: http://marc.merlins.org/
2:33 a.m.
New subject: [Powertop] USB devices get wrong power use values
On 9/22/2013 4:54 PM, Marc MERLIN wrote:
So, I asked on the linux-usb list, and one thing I quickly found out
is that the
Watt value given by powertop 2.4 is way off for USB devices:
what makes you think the value is off?
> Power est. Events/s Category Description
> 8.18 W 100.0% Device USB device: Yubico Yubikey II (Yubico)
> 8.13 W 100.0% Device USB device: Integrated Camera (Chicony
Electronics Co., Ltd.)
having a USB device active also generally makes the CPU/etc use much more power,
which Powertop "charges" to the USB device in question.
8 Watts sounds entirely reasonable for that to me...
3:22 a.m.
New subject: [Powertop] USB devices get wrong power use values
On Sun, Oct 13, 2013 at 08:33:51AM -0700, Arjan van de Ven wrote:
On 9/22/2013 4:54 PM, Marc MERLIN wrote:
>So, I asked on the linux-usb list, and one thing I quickly found out is that the
>Watt value given by powertop 2.4 is way off for USB devices:
what makes you think the value is off?
>>Power est. Events/s Category Description
>> 8.18 W 100.0% Device USB device: Yubico Yubikey II (Yubico)
>> 8.13 W 100.0% Device USB device: Integrated Camera (Chicony
Electronics Co., Ltd.)
having a USB device active also generally makes the CPU/etc use much more power,
which Powertop "charges" to the USB device in question.
8 Watts sounds entirely reasonable for that to me...
Aah, if the CPU gets involved, then yes, it's a bit more possible.
So, a simple USB keyboard that's unused can keep one core awake and burn 8
watts if something else goes wrong in the kernel to cause that?
Thanks,
Marc
--
"A mouse is a device used to point at the xterm you want to type in" - A.S.R.
Microsoft is to operating systems ....
.... what McDonalds is to gourmet cooking
Home page: http://marc.merlins.org/ | PGP 1024R/763BE901
5:48 a.m.
New subject: [Powertop] USB devices get wrong power use values
On 10/13/2013 9:22 AM, Marc MERLIN wrote:
> having a USB device active also generally makes the CPU/etc use
much more power,
> which Powertop "charges" to the USB device in question.
>
> 8 Watts sounds entirely reasonable for that to me...
Aah, if the CPU gets involved, then yes, it's a bit more possible.
So, a simple USB keyboard that's unused can keep one core awake and burn 8
watts if something else goes wrong in the kernel to cause that?
a bad USB keyboard can keep the processor out of deep package C states..
not a lot the software can do about that...
but yet it can be THAT much power delta.
(we've seen for example on some servers that a cheap keyboard makes > 15 Watts
difference, but measured
at the wall socket, so after the power supply/etc)
9:10 a.m.
New subject: [Powertop] USB devices get wrong power use values
On Sun, Oct 13, 2013 at 11:48:25AM -0700, Arjan van de Ven wrote:
On 10/13/2013 9:22 AM, Marc MERLIN wrote:
>>having a USB device active also generally makes the CPU/etc use much more power,
>>which Powertop "charges" to the USB device in question.
>>
>>8 Watts sounds entirely reasonable for that to me...
>
>Aah, if the CPU gets involved, then yes, it's a bit more possible.
>So, a simple USB keyboard that's unused can keep one core awake and burn 8
>watts if something else goes wrong in the kernel to cause that?
a bad USB keyboard can keep the processor out of deep package C states..
not a lot the software can do about that...
but yet it can be THAT much power delta.
(we've seen for example on some servers that a cheap keyboard makes > 15 Watts
difference, but measured
at the wall socket, so after the power supply/etc)
So note that it's actually a very small USB widget that behaves as a
keyboard (it's an OTP token).
I've only had that OTP token show as 7W once, and it was suspicious that
it was at the exact same time as my built in camera.
So from what you're staying, you're pretty sure that the measuring code
was correct and that somehow the USB system was wedged or that power
management suspend failed in a way that both devices were taking 14W
together, more than what the entire laptop uses when on batteries with
CPUs mostly asleep?
Marc
--
"A mouse is a device used to point at the xterm you want to type in" - A.S.R.
Microsoft is to operating systems ....
.... what McDonalds is to gourmet cooking
Home page: http://marc.merlins.org/ | PGP 1024R/763BE901
9:38 a.m.
New subject: [Powertop] USB devices get wrong power use values
So note that it's actually a very small USB widget that behaves as a
keyboard (it's an OTP token).
I've only had that OTP token show as 7W once, and it was suspicious that
it was at the exact same time as my built in camera.
So from what you're staying, you're pretty sure that the measuring code
was correct and that somehow the USB system was wedged or that power
management suspend failed in a way that both devices were taking 14W
together, more than what the entire laptop uses when on batteries with
CPUs mostly asleep?
well powertop cannot measure, only model these things
if you go WAAAY outside the current model (by adding devices never seen before)
the accuracy will go up over time, but initially might be off by a bit.
11:01 a.m.
New subject: [Powertop] USB devices get wrong power use values
On Sun, Oct 13, 2013 at 09:22:12AM -0700, Marc MERLIN wrote:
On Sun, Oct 13, 2013 at 08:33:51AM -0700, Arjan van de Ven wrote:
> On 9/22/2013 4:54 PM, Marc MERLIN wrote:
> >So, I asked on the linux-usb list, and one thing I quickly found out is that
the
> >Watt value given by powertop 2.4 is way off for USB devices:
>
> what makes you think the value is off?
>
> >>Power est. Events/s Category Description
> >> 8.18 W 100.0% Device USB device: Yubico Yubikey II
(Yubico)
> >> 8.13 W 100.0% Device USB device: Integrated Camera
(Chicony Electronics Co., Ltd.)
>
> having a USB device active also generally makes the CPU/etc use much more power,
> which Powertop "charges" to the USB device in question.
>
> 8 Watts sounds entirely reasonable for that to me...
Aah, if the CPU gets involved, then yes, it's a bit more possible.
So, a simple USB keyboard that's unused can keep one core awake and burn 8
watts if something else goes wrong in the kernel to cause that?
So, I just upgraded to 3.11.5, and see things like this below. Can alsa sound
really take 10W when I'm batteries?
Let me put it another way, it just cannot be correct. Full power use is 15W and
if you removed 10W for audio (I'm sure that's wrong) and 3W for wifi (that may be
correct)
it means my quad core laptop is running at 2W with the screen on?
Not possible at all.
So there has to be a bug in powertop 2.4 USB device power calculation.
For what it's worth, I got the data below right after running
powertop --calibrate and letting it go through a full cycle.
----------------------------------------------------------------------------
The battery reports a discharge rate of 15.1 W
The estimated remaining time is 4 hours, 53 minutes
Summary: 572.4 wakeups/second, 18.3 GPU ops/seconds, 0.0 VFS ops/sec and 8.3% CPU use
Power est. Usage Events/s Category Description
10.5 W 100.0% Device Audio codec alsa:hwC0D0: thinkpad
(Realtek)
3.10 W 7.0 pkts/s Device Network interface: wlan0 (iwlwifi)
772 mW 25.1 ms/s 208.4 Process /usr/bin/enlightenment
13.4 mW 1.2 ms/s 8.5 Process xfce4-terminal -T window10
--role=window10 --tab
(...)
----------------------------------------------------------------------------
Calibrate results if that helps:
gandalfthegreat:~# powertop --calibrate
Loaded 750 prior measurements
RAPL device for cpu 0
RAPL device for cpu 0
RAPL device for cpu 0
Starting PowerTOP power estimate calibration
Calibrating idle
Calibrating: disk usage
Calibrating backlight
.... device /sys/class/backlight/intel_backlight/brightness
.... device /sys/class/backlight/acpi_video0/brightness
Calibrating idle
Calibrating: CPU usage on 1 threads
Calibrating: CPU usage on 4 threads
Calibrating: CPU wakeup power consumption
Calibrating: CPU wakeup power consumption
Calibrating: CPU wakeup power consumption
Calibrating USB devices
.... device /sys/bus/usb/devices/3-1/power/control
.... device /sys/bus/usb/devices/4-1/power/control
.... device /sys/bus/usb/devices/usb1/power/control
.... device /sys/bus/usb/devices/usb2/power/control
.... device /sys/bus/usb/devices/usb3/power/control
.... device /sys/bus/usb/devices/usb4/power/control
.... device /sys/bus/usb/devices/3-1.2/power/control
.... device /sys/bus/usb/devices/3-1.6/power/control
Calibrating radio devices
.... device /sys/class/rfkill/rfkill0/soft
.... device /sys/class/rfkill/rfkill1/soft
.... device /sys/class/rfkill/rfkill0/soft
.... device /sys/class/rfkill/rfkill1/soft
Finishing PowerTOP power estimate calibration
Parameters after calibration:
Parameter state
----------------------------------
Value Name
2.23 alsa-codec-power (2)
0.37 backlight (3)
3.51 backlight-boost-100 (4)
2.52 backlight-boost-40 (5)
6.65 backlight-boost-80 (6)
0.00 backlight-power (7)
0.21 base power (8)
0.00 cpu-consumption (9)
0.00 cpu-wakeups (10)
0.00 disk-operations (11)
0.00 disk-operations-hard (12)
0.00 eth0-link-100 (13)
10.93 eth0-link-1000 (14)
0.00 eth0-link-high (15)
0.00 eth0-packets (16)
0.00 eth0-powerunsave (17)
0.00 eth0-up (18)
0.20 gpu-operations (19)
0.00 radio:hci0 (20)
0.00 radio:phy0 (21)
0.31 radio:tpacpi_bluetooth_sw (22)
0.00 runtime-0000:00:00.0 (23)
0.00 runtime-0000:00:02.0 (24)
0.00 runtime-0000:00:14.0 (25)
0.00 runtime-0000:00:16.0 (26)
0.00 runtime-0000:00:16.3 (27)
0.00 runtime-0000:00:19.0 (28)
0.00 runtime-0000:00:1a.0 (29)
0.00 runtime-0000:00:1b.0 (30)
0.00 runtime-0000:00:1c.0 (31)
0.00 runtime-0000:00:1c.1 (32)
0.00 runtime-0000:00:1c.2 (33)
0.00 runtime-0000:00:1d.0 (34)
0.00 runtime-0000:00:1f.0 (35)
0.00 runtime-0000:00:1f.2 (36)
0.00 runtime-0000:00:1f.3 (37)
0.00 runtime-0000:02:00.0 (38)
0.00 runtime-0000:03:00.0 (39)
0.00 thinkpad-fan (40)
0.00 thinkpad-fan-cub (41)
0.00 thinkpad-fan-sqr (42)
0.00 thinkpad-light (43)
0.00 usb-device-0403-6001 (44)
0.00 usb-device-04e8-6860 (45)
0.00 usb-device-04e8-6864 (46)
2.58 usb-device-04f2-b2ea (47)
0.00 usb-device-058f-6387 (48)
0.00 usb-device-091e-0003 (49)
1.34 usb-device-0a5c-21e6 (50)
9.82 usb-device-1050-0010 (51)
0.00 usb-device-18d1-4ee2 (52)
0.00 usb-device-18d1-4ee4 (53)
0.00 usb-device-1d6b-0002 (54)
0.00 usb-device-1d6b-0003 (55)
0.00 usb-device-8087-0024 (56)
0.00 usb0-link-100 (57)
0.00 usb0-link-1000 (58)
0.00 usb0-link-high (59)
0.00 usb0-packets (60)
0.00 usb0-powerunsave (61)
0.00 usb0-up (62)
0.00 vboxnet0-link-100 (63)
0.00 vboxnet0-link-1000 (64)
0.00 vboxnet0-link-high (65)
0.00 vboxnet0-packets (66)
0.00 vboxnet0-powerunsave (67)
0.00 vboxnet0-up (68)
0.00 wlan0-link-100 (69)
0.00 wlan0-link-1000 (70)
0.00 wlan0-link-high (71)
0.00 wlan0-packets (72)
1.64 wlan0-powerunsave (73)
0.00 wlan0-up (74)
0.00 xwakes (75)
Score: 2.6 (104691.5)
Guess: 13.2
Actual: 13.6
----------------------------------
--
"A mouse is a device used to point at the xterm you want to type in" - A.S.R.
Microsoft is to operating systems ....
.... what McDonalds is to gourmet cooking
Home page: http://marc.merlins.org/
11:24 a.m.
New subject: [Powertop] USB devices get wrong power use values
On Thu, Oct 17, 2013 at 05:01:54PM -0700, Marc MERLIN wrote:
On Sun, Oct 13, 2013 at 09:22:12AM -0700, Marc MERLIN wrote:
> On Sun, Oct 13, 2013 at 08:33:51AM -0700, Arjan van de Ven wrote:
> > On 9/22/2013 4:54 PM, Marc MERLIN wrote:
> > >So, I asked on the linux-usb list, and one thing I quickly found out is
that the
> > >Watt value given by powertop 2.4 is way off for USB devices:
> >
> > what makes you think the value is off?
> >
> > >>Power est. Events/s Category Description
> > >> 8.18 W 100.0% Device USB device: Yubico Yubikey II
(Yubico)
> > >> 8.13 W 100.0% Device USB device: Integrated Camera
(Chicony Electronics Co., Ltd.)
> >
> > having a USB device active also generally makes the CPU/etc use much more
power,
> > which Powertop "charges" to the USB device in question.
> >
> > 8 Watts sounds entirely reasonable for that to me...
>
> Aah, if the CPU gets involved, then yes, it's a bit more possible.
> So, a simple USB keyboard that's unused can keep one core awake and burn 8
> watts if something else goes wrong in the kernel to cause that?
So, I just upgraded to 3.11.5, and see things like this below. Can alsa sound
really take 10W when I'm batteries?
Let me put it another way, it just cannot be correct. Full power use is 15W and
if you removed 10W for audio (I'm sure that's wrong) and 3W for wifi (that may be
correct)
it means my quad core laptop is running at 2W with the screen on?
Not possible at all.
So there has to be a bug in powertop 2.4 USB device power
calculation.
For what it's worth, I got the data below right after running
powertop --calibrate and letting it go through a full cycle.
----------------------------------------------------------------------------
The battery reports a discharge rate of 15.1 W
The estimated remaining time is 4 hours, 53 minutes
Summary: 572.4 wakeups/second, 18.3 GPU ops/seconds, 0.0 VFS ops/sec and 8.3% CPU use
Power est. Usage Events/s Category Description
10.5 W 100.0% Device Audio codec alsa:hwC0D0: thinkpad
(Realtek)
3.10 W 7.0 pkts/s Device Network interface: wlan0
(iwlwifi)
772 mW 25.1 ms/s 208.4 Process /usr/bin/enlightenment
13.4 mW 1.2 ms/s 8.5 Process xfce4-terminal -T window10
--role=window10 --tab
(...)
----------------------------------------------------------------------------
Just after I wrote this, I'm now seeing my yubikey back to 10W when it was
alsa holding the slot earlier.
----------------------------------------------------------------------------
The
battery reports a discharge rate of 21.3 W
The estimated remaining time is 3 hours, 0 minutes
Summary: 2685.1 wakeups/second, 149.8 GPU ops/seconds, 0.0 VFS ops/sec and 31.2% CPU use
Power est. Usage Events/s Category Description
10.4 W 100.0% Device USB device: Yubico Yubikey II
(Yubico)
5.50 W 13.0% Device Display backlight
1.51 W 17.4 pkts/s Device Network interface: wlan0 (iwlwifi)
566 mW 85.8 ms/s 1520.4 Process /usr/bin/enlightenment
109 mW 100.0% Device Audio codec alsa:hwC0D0: thinkpad
(Realtek)
43.2 mW 5.2 ms/s 72.9 Process xfce4-terminal -T window5
--role=window5
25.9 mW 0.8 ms/s 14.8 Process xfce4-terminal -T window9
--role=window9 --tab
----------------------------------------------------------------------------
I hope this is useful.
Marc
--
"A mouse is a device used to point at the xterm you want to type in" - A.S.R.
Microsoft is to operating systems ....
.... what McDonalds is to gourmet cooking
Home page: http://marc.merlins.org/
5:59 a.m.
New subject: [Powertop] Fwd: powertop 2.4 questions
On Wed, Sep 18, 2013 at 12:29 PM, Marc MERLIN
<marc_powertop@merlins.org<mailto:marc_powertop@merlins.org>> wrote:
> On Wed, Sep 18, 2013 at 09:33:53PM +0300, Sergey Senozhatsky wrote:
>> > So, I got powertop 2.4 from
>> > [5]https://01.org/powertop/downloads/2013/powertop-v2.4
>> >
>> > Like I showed you on my laptop, when I go left and right with my
>> > arrows, I'm on the Overview screen, and I can't move to Idle stats
>> > or Freq stats like I could in older powertops:
>>
>> in order to move between tabs use TAB button.
>
> That works indeed, I didn't realize it changed.
I think Chris had to do that since he implemented scrollable ncurses windows, and you need
up/down/left/right to move the viewport around.
It's been a while that this code was in and the announcement went out... sadly
it's hard to get distros to pick up details like that.
Auke
Yes it's been that way for a while now.
5:49 a.m.
New subject: [Powertop] Fwd: powertop 2.4 questions
On (09/18/13 12:29), Marc MERLIN wrote:
On Wed, Sep 18, 2013 at 09:33:53PM +0300, Sergey Senozhatsky wrote:
> > So, I got powertop 2.4 from
> > [5]https://01.org/powertop/downloads/2013/powertop-v2.4
> >
> > Like I showed you on my laptop, when I go left and right with my arrows,
> > I'm on the Overview screen, and I can't move to Idle stats or Freq
stats
> > like I could in older powertops:
>
> in order to move between tabs use TAB button.
That works indeed, I didn't realize it changed.
---
Tue Sep 11 10:23:26 2012 -0700
PowerTOP UI navigation enhancement(v3).
"Arrow Keys" now scroll the tab windows
"Page up/down" scroll tab windows up and down
"TAB" cycles the next window tab
"SHIFT+TAB" cycles the previous window tab
"ENTER" toggles tunables
"SPACE BAR" toggles tunables
"r KEY" refresh results and resets view of tab window.
---
it was in 2.2 release. I think the problem is that there was no
2.2 release annoucement and that change went unmentioned, so one
year later we still sometimes see such questions.
-ss
Thanks,
Marc
--
"A mouse is a device used to point at the xterm you want to type in" - A.S.R.
Microsoft is to operating systems ....
.... what McDonalds is to gourmet cooking
Home page: http://marc.merlins.org/ | PGP 1024R/763BE901
3257
days inactive
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17 comments
7 participants
participants (7)
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Andika Triwidada -
Arjan van de Ven -
Ferron, Chris E -
Kok, Auke-jan H -
Marc MERLIN -
Sergey Senozhatsky -
Srinivas Pandruvada