High wakeups/sec + high power consumption

[senuketo]

Changed my repository from the local one(nearest one) to a general one.
Ran update/upgrade and lots more upgradables appeared.
/Was looking for a way to try 5.3.0-46-generic kernel/
Now I'm with kernel -46 which broke my WiFi, bluetooth and audio output is quite bad, maybe the subwoofer is broken.


Started powertop and it was getting to 3.5 W at idle, minimum screen brightness, no apps. - Interesting, getting there.


so I did the following to fix the WiFi:

git clone https://git.kernel.org/pub/scm/linux...rt-iwlwifi.git
cd backport-iwlwifi/
make defconfig-iwlwifi-public
sed -i 's/CPTCFG_IWLMVM_VENDOR_CMDS=y/# CPTCFG_IWLMVM_VENDOR_CMDS is not set/' .config
make -j4
sudo make install
sudo modprobe iwlwifi

After reboot WiFi is back. Having problems with the bluetooth though.
Brighntess at minimum, no apps, WiFi On - 3.7 W

The battery reports a discharge rate of 3.70 W
Summary: 240,9 wakeups/second, 0,0 GPU ops/seconds, 0,0 VFS ops/sec and 3,6% CP


Power est. Usage Events/s Category Description
3.09 W 0,0% Device Display backlight
1.11 W 0,0 pkts/s Device Network interface: enp0s3
803 mW 0,1 pkts/s Device Network interface: wlp0s2
130 mW 682,7 µs/s 63,7 Timer tick_sched_timer
102 mW 21,2 ms/s 42,1 Process [PID 2164] /usr/bin/gnome
50.2 mW 295,2 µs/s 24,6 Process [PID 11] [rcu_sched]

Much happier with the results. Almost twice as little consumption at idle.


Brightness about 30%, Chrome with 13 tabs, WiFi ON, text editor and Slack only 5.5 W:

The battery reports a discharge rate of 5.38 W
Summary: 1252,0 wakeups/second, 0,0 GPU ops/seconds, 0,0 VFS ops/sec and 25,4%


Power est. Usage Events/s Category Description
3.30 W 5,0% Device Display backlight
909 mW 1,0 pkts/s Device Network interface: wlp0s2
780 mW 0,0 pkts/s Device Network interface: enp0s3
480 mW 4,0 ms/s 245,5 Timer tick_sched_timer
374 mW 0,8 ms/s 191,9 Interrupt [17] idma64.1
312 mW 1,4 ms/s 152,8 Process [PID 3048] /opt/google/ch
177 mW 49,9 ms/s 59,6 Process [PID 2164] /usr/bin/gnome
153 mW 2,6 ms/s 77,9 Process [PID 704] [irq/164-SYNA80

Much much better.

Still pretty high number of wakeups/second. If you direct me on how to find who's the culprit, would be great. Tried a couple of things but they didn't help much as mentioned in the first post.

[senuketo]

Tried the previous kernel-30, again 8 W idle.
So it's the kernel.

[daniewicz]

Sounds like progress to me!

[senuketo]

Yes, definitely!
Could it be the new kernel just broke some devices I'm not seeing

Also just saw that because of the daylight I couldn't see that the keyboard backlight was on.
Without it consumption fell to 2.7 W (soul ejaculation).

With average consumption under normal use 6 W with a 52Wh battery I can reach about 8.5h. Naish!