<![CDATA[How to resolve extensive CPU consumption after UBports update?]]>For the second time, my FP2 is allmost unusable after a system update. The device responds with a significant delay. The device becomes very hot behind the processor and the battery status is going down quite fast. I assume a high CPU consumption of any process.

I'm using UBports on the FP2 with a few additional installations, that might cuase the conflict after the system update:

  • Anbox with two additional Android apps
  • Libertine container
  • Addressbook synchronisation script

Has someone another solution, than flashing the device? It might be a bug, that should be solved.

]]>https://forums.ubports.com/topic/2572/how-to-resolve-extensive-cpu-consumption-after-ubports-updateRSS for NodeWed, 13 May 2026 10:14:35 GMTSat, 06 Apr 2019 19:52:49 GMT60<![CDATA[Reply to How to resolve extensive CPU consumption after UBports update? on Mon, 08 Apr 2019 19:39:37 GMT]]>@guru Makes sense.

I also agree according Android apps. I deon't need them either. I test Anbox for our planned device for a conumer market, because most people of our focus group ask clearly for Android support.

The good thing of Anbox is, that this approach is a sandboxed container with no access to system ressources outside of the container. It's not yet possible to shut down and start Anbox to be sure, that the apps are only running, if I need them, a banking app for example. But I tthink, it could be possible. I tink it would be even possible to add more controll to this Android emulation.

]]>https://forums.ubports.com/post/18961https://forums.ubports.com/post/18961Mon, 08 Apr 2019 19:39:37 GMT<![CDATA[Reply to How to resolve extensive CPU consumption after UBports update? on Mon, 08 Apr 2019 18:42:21 GMT]]>You might concider edit your post.

Any way, glad you solved your problem, even if I want to add, that I'd not install and use any Android app without having the source.

]]>https://forums.ubports.com/post/18959https://forums.ubports.com/post/18959Mon, 08 Apr 2019 18:42:21 GMT<![CDATA[Reply to How to resolve extensive CPU consumption after UBports update? on Mon, 08 Apr 2019 16:18:43 GMT]]>@guru Sorry. I don't know, how the "Not" came into the sentence. The device works fast now.

]]>https://forums.ubports.com/post/18954https://forums.ubports.com/post/18954Mon, 08 Apr 2019 16:18:43 GMT<![CDATA[Reply to How to resolve extensive CPU consumption after UBports update? on Mon, 08 Apr 2019 16:09:21 GMT]]>@marc_aurel said in How to resolve extensive CPU consumption after UBports update?:

@guru Thanks for your suggestion. I have reinstalled the boot image as described in the documentation. Not it seems to be solved:
....

Is it solved NOW or NOT?

]]>https://forums.ubports.com/post/18953https://forums.ubports.com/post/18953Mon, 08 Apr 2019 16:09:21 GMT<![CDATA[Reply to How to resolve extensive CPU consumption after UBports update? on Mon, 08 Apr 2019 19:40:09 GMT]]>@guru Thanks for your suggestion. I have reinstalled the boot image as described in the documentation. Now it seems to be solved:

adb shell
sudo reboot -f bootloader # 'adb shell' will exit after this command
wget http://cdimage.ubports.com/anbox-images/anbox-boot-$CODENAME.img
sudo fastboot flash $PARTITIONNAME anbox-boot-$CODENAME.img
sudo fastboot reboot
rm anbox-boot-$CODENAME.img

It seems, that the updates of UBports doesn't consider an Anbox installation and cause a conflict.

]]>https://forums.ubports.com/post/18952https://forums.ubports.com/post/18952Mon, 08 Apr 2019 19:40:09 GMT<![CDATA[Reply to How to resolve extensive CPU consumption after UBports update? on Mon, 08 Apr 2019 13:46:43 GMT]]>Try to solve this:

$ grep /sys/devices/virtual/net/anbox0/driver nm.tr
readlinkat(AT_FDCWD, "/sys/devices/virtual/net/anbox0/driver", 0xfaa008, 99) = -1 ENOENT (No such file or directory)
readlinkat(AT_FDCWD, "/sys/devices/virtual/net/anbox0/driver", 0xfb1440, 99) = -1 ENOENT (No such file or directory)
readlinkat(AT_FDCWD, "/sys/devices/virtual/net/anbox0/driver", 0xf87600, 99) = -1 ENOENT (No such file or directory)
readlinkat(AT_FDCWD, "/sys/devices/virtual/net/anbox0/driver", 0xfab388, 99) = -1 ENOENT (No such file or directory)
]]>https://forums.ubports.com/post/18951https://forums.ubports.com/post/18951Mon, 08 Apr 2019 13:46:43 GMT<![CDATA[Reply to How to resolve extensive CPU consumption after UBports update? on Mon, 08 Apr 2019 13:03:46 GMT]]>@marc_aurel They are a lot of entry related to anbox0, maybe an issue with Anbox ?

]]>https://forums.ubports.com/post/18949https://forums.ubports.com/post/18949Mon, 08 Apr 2019 13:03:46 GMT<![CDATA[Reply to How to resolve extensive CPU consumption after UBports update? on Mon, 08 Apr 2019 12:28:24 GMT]]>@guru Thanks. Here is the document.

I have limited skills to interpret the entries of the log. There is a repeating entry with futex. I think this could be reated to the error on the screenshot, I've posted.

]]>https://forums.ubports.com/post/18947https://forums.ubports.com/post/18947Mon, 08 Apr 2019 12:28:24 GMT<![CDATA[Reply to How to resolve extensive CPU consumption after UBports update? on Mon, 08 Apr 2019 11:46:24 GMT]]>You can strace the NetworkManager proc to try to understand what it keeps so busy, run:

sudo su
strace -o /tmp/nm.tr -p PID
Ctrl-C
vi /tmp/nm.tr

PID is the proc id, 2262 in the above screen.

]]>https://forums.ubports.com/post/18944https://forums.ubports.com/post/18944Mon, 08 Apr 2019 11:46:24 GMT<![CDATA[Reply to How to resolve extensive CPU consumption after UBports update? on Mon, 08 Apr 2019 11:36:15 GMT]]>@AlainW94 Thanks, this was indeed a plausible assumption. Unfortunately enabling the flight mode, doesn't change the behaviour:

%CPU   %USR   %SYS   PID S  CPU   Time Task
29.41  21.01   8.40  2262 S    3  4.28m NetworkManager
21.85  18.49   3.36   812 S    2  3.69m dbus-daemon
15.13   6.72   8.40     1 S    2  2.09m /sbin/init
 7.56   0.84   6.72 18258 R    2  3.24s cpustat
 4.20   3.36   0.84 19903 S    0 27.49s unity8
 3.36   2.52   0.84  2471 R    2 45.48s upstart-dbus-bridge
 2.52   1.68   0.84  4142 R    3 18.83s /usr/lib/arm-linux-gnueabihf/indicator-network/indicator-network-service
 2.52   1.68   0.84  3625 S    2 18.67s /usr/lib/NetworkManager/nm-dispatcher
 2.52   1.68   0.84 28866 S    3  8.04s unity8-dash
 2.52   0.84   1.68  5008 R    2 35.56s /opt/click.ubuntu.com/dekko2.dekkoproject/current/lib/arm-linux-gnueabihf/bin/dekkod
 2.52   1.68   0.84  3556 S    2 20.62s /usr/lib/arm-linux-gnueabihf/sync-monitor/sync-monitor
 1.68   1.68   0.00 20085 R    2  0.24s upstart
 1.68   0.84   0.84  1005 S    3 19.59s /lib/systemd/systemd-udevd
 1.68   1.68   0.00 22193 S    2 13.34s /usr/bin/zeitgeist-daemon
 1.68   0.84   0.84   832 S    2 12.93s upstart-file-bridge
 1.68   0.84   0.84  5654 S    2 16.77s /usr/lib/evolution/evolution-calendar-factory-subprocess
 1.68   0.84   0.84  2163 S    0 13.54s /usr/lib/udisks2/udisksd
 1.68   0.00   1.68 27986 S    3  6.70s maliit-server
 1.68   0.84   0.84  3420 S    2 19.56s /usr/lib/arm-linux-gnueabihf/thumbnailer/thumbnailer-service
 1.68   1.68   0.00  1845 R    0 48.79s upstart
 1.68   1.68   0.00  6573 S    2 19.16s /usr/bin/msyncd
 1.68   0.00   1.68   176 S    0 13.06s [mmcqd/0]
 1.68   1.68   0.00  5610 S    2 17.24s /usr/lib/evolution/evolution-calendar-factory-subprocess
 1.68   0.84   0.84  3355 S    2 17.56s /usr/lib/evolution/evolution-addressbook-factory-subprocess
 1.68   0.84   0.84   997 S    2 17.93s upstart-udev-bridge
 1.68   0.84   0.84  2724 R    2 35.31s /usr/lib/telepathy/mission-control-5
 1.68   1.68   0.00  5199 S    2 16.77s /usr/lib/evolution/evolution-calendar-factory-subprocess
 1.68   0.00   1.68    36 S    0  6.66s [kworker/u:1]
 0.84   0.84   0.00   807 S    0 11.67s rsyslogd
 0.84   0.84   0.00  2074 R    0 13.53s upstart-udev-bridge
 0.84   0.00   0.84   297 S    2  4.24s [jbd2/mmcblk0p20]
 0.84   0.00   0.84 21454 S    2  0.17s trust-stored-skeleton
 0.84   0.84   0.00   941 S    3  5.14s /system/bin/logd
 0.84   0.00   0.84     4 S    0  1.19s [kworker/0:0]
 0.84   0.00   0.84     2 S    2  1.80s [kthreadd]
 0.84   0.84   0.00  2708 S    3 17.76s upstart-dbus-bridge
 0.84   0.00   0.84  3021 S    2 12.58s upstart-socket-bridge
 0.84   0.00   0.84  1031 S    3  2.32s /usr/lib/accountsservice/accounts-daemon
 0.84   0.00   0.84 18969 S    2  0.06s [kworker/2:1]
 0.84   0.00   0.84 31587 S    0  2.63s [kworker/u:7]
 0.84   0.00   0.84   840 S    3  4.35s /sbin/ueventd
 0.84   0.84   0.00 27982 S    0  2.78s /usr/lib/ubuntu-push-client/ubuntu-push-client
 0.84   0.00   0.84   681 S    2 12.61s upstart-local-bridge
 0.84   0.00   0.84   305 S    0  3.43s [loop0]
]]>https://forums.ubports.com/post/18941https://forums.ubports.com/post/18941Mon, 08 Apr 2019 11:36:15 GMT<![CDATA[Reply to How to resolve extensive CPU consumption after UBports update? on Mon, 08 Apr 2019 09:34:16 GMT]]>@marc_aurel I have the feeling that it's coming from network manager. Can you try to put heure phone in flight mode then start again the command and check if the phone is cooling or not after 10 minutes please ? I'm not using the metrics on the screening, what is wrong please ?

]]>https://forums.ubports.com/post/18938https://forums.ubports.com/post/18938Mon, 08 Apr 2019 09:34:16 GMT<![CDATA[Reply to How to resolve extensive CPU consumption after UBports update? on Mon, 08 Apr 2019 08:34:30 GMT]]>@AlainW94 Thanks for your suggestions. Her is the log output:

%CPU   %USR   %SYS   PID S  CPU   Time Task
32.65  26.53   6.12  2651 R    0  2.76m NetworkManager
26.53  24.49   2.04   810 S    1  2.15m dbus-daemon
11.22   2.04   9.18     1 S    1  1.19m /sbin/init
 8.16   0.00   8.16 17145 R    2  1.76s cpustat
 4.08   2.04   2.04  4140 S    1 14.98s /usr/lib/arm-linux-gnueabihf/sync-monitor/sync-monitor
 4.08   4.08   0.00  2756 R    0 21.38s /usr/lib/telepathy/mission-control-5
 4.08   2.04   2.04  2521 R    1 27.31s upstart-dbus-bridge
 3.06   3.06   0.00 27671 T    2  4.96s system-settings
 3.06   2.04   1.02  5069 S    0 16.23s unity8-dash
 3.06   1.02   2.04  3283 S    1 37.89s unity8
 3.06   2.04   1.02  1802 R    0 33.53s upstart
 2.04   1.02   1.02  4213 S    2 15.36s maliit-server
 2.04   0.00   2.04  2984 S    1  6.86s upstart-socket-bridge
 2.04   2.04   0.00 27996 S    2  2.16s /usr/bin/zeitgeist-daemon
 2.04   1.02   1.02  5501 S    0 14.26s /opt/click.ubuntu.com/dekko2.dekkoproject/current/lib/arm-linux-gnueabihf/bin/dekkod
 2.04   1.02   1.02  7053 S    2 13.59s /usr/bin/msyncd
 2.04   1.02   1.02   831 S    1  7.14s upstart-file-bridge
 2.04   0.00   2.04   934 S    0  2.43s [kworker/u:4]
 2.04   1.02   1.02  1035 S    1 10.87s /lib/systemd/systemd-udevd
 2.04   1.02   1.02  2707 S    2  9.63s /usr/lib/NetworkManager/nm-dispatcher
 2.04   1.02   1.02  3404 S    0  9.41s /usr/lib/evolution/evolution-addressbook-factory-subprocess
 2.04   1.02   1.02  3436 S    2 13.69s /usr/lib/arm-linux-gnueabihf/thumbnailer/thumbnailer-service
 2.04   1.02   1.02   685 S    1  6.95s upstart-local-bridge
 2.04   1.02   1.02  4944 S    1  8.36s /usr/lib/arm-linux-gnueabihf/indicator-network/indicator-network-service
 2.04   2.04   0.00  5940 S    0  8.78s /usr/lib/evolution/evolution-calendar-factory-subprocess
 1.02   0.00   1.02     7 D    0  2.49s [kworker/u:0H]
 1.02   1.02   0.00  2235 S    0  6.40s /usr/lib/udisks2/udisksd
 1.02   0.00   1.02     3 S    0  1.24s [ksoftirqd/0]
 1.02   0.00   1.02  5358 S    0  2.79s /usr/bin/ciborium
 1.02   0.00   1.02  2048 S    2  8.09s upstart-udev-bridge
 1.02   1.02   0.00  6365 S    0  9.60s /usr/lib/evolution/evolution-calendar-factory-subprocess
 1.02   1.02   0.00  2631 S    1  5.41s upstart-file-bridge
 1.02   0.00   1.02  2614 S    2  1.13s [ksoftirqd/2]
 1.02   1.02   0.00   806 S    1  5.22s rsyslogd
 1.02   0.00   1.02   156 S    0  0.56s [irq/253-msm_sdc]
 1.02   1.02   0.00  1273 S    2  5.78s unity-system-compositor
 1.02   1.02   0.00  3300 S    1  0.59s ofonod
 1.02   1.02   0.00  4096 S    2  3.59s /usr/lib/ubuntu-push-client/ubuntu-push-client
 1.02   0.00   1.02   176 S    0  7.30s [mmcqd/0]
 1.02   1.02   0.00   998 S    2 10.22s upstart-udev-bridge
 1.02   0.00   1.02  3277 S    0  2.41s [kworker/u:6]
 1.02   0.00   1.02   959 S    0  2.80s /system/bin/sensorservice
 1.02   1.02   0.00  2083 S    1 10.24s dbus-daemon
 1.02   0.00   1.02  2493 S    1 10.78s upstart-dbus-bridge
 1.02   0.00   1.02   939 S    1  1.28s /system/bin/logd

I also realized another problem on my startup screen:

20190408_102040.jpg

]]>https://forums.ubports.com/post/18936https://forums.ubports.com/post/18936Mon, 08 Apr 2019 08:34:30 GMT<![CDATA[Reply to How to resolve extensive CPU consumption after UBports update? on Sun, 07 Apr 2019 23:11:00 GMT]]>@marc_aurel you can try to check the cpu task with

cpustat
]]>https://forums.ubports.com/post/18931https://forums.ubports.com/post/18931Sun, 07 Apr 2019 23:11:00 GMT<![CDATA[Reply to How to resolve extensive CPU consumption after UBports update? on Sun, 07 Apr 2019 09:26:55 GMT]]>@UniSuperBox Thanks. I still can see the Android apps after a system update. However a deinstalled Anbox after a system update wouldn't explain the huge CPU load. I can allmost view how the battery loading status is going down and feel how the device gets hot

Doeas someone know a tool or command to analyze the system processes?

]]>https://forums.ubports.com/post/18913https://forums.ubports.com/post/18913Sun, 07 Apr 2019 09:26:55 GMT<![CDATA[Reply to How to resolve extensive CPU consumption after UBports update? on Sat, 06 Apr 2019 20:17:42 GMT]]>Anbox is removed between updates. You will need to reinstall Anbox to use your device normally.

]]>https://forums.ubports.com/post/18912https://forums.ubports.com/post/18912Sat, 06 Apr 2019 20:17:42 GMT