touch-packages team mailing list archive
-
touch-packages team
-
Mailing list archive
-
Message #56121
[Bug 1422898] Re: Excessive CPU usage, even when the device is turned off
Here's a text file with the properly formatted output of the "top"
command.
** Attachment added: "formatted_top.txt"
https://bugs.launchpad.net/ubuntu/+source/unity8/+bug/1422898/+attachment/4321345/+files/formatted_top.txt
** Summary changed:
- Excessive CPU usage, even when the device is turned off
+ Excessive CPU usage, even when the screen is turned off
** Description changed:
Since mako image r102 (vivid-proposed), the CPU usage of Unity8 is very excessive and increasing over time.
- After boot, the phone runs smooth but after some time I have to restart it because the phone lacks heavily. Looking at the output of the "top" command, I can see that Unity8 is taking up a lot of CPU power.
+ After boot, the phone runs smooth but after some time it lags heavily.
- This is the output of the "top" command with the SCREEN TURNED OFF (run
- via adb):
-
- top - 21:31:07 up 3:56, 1 user, load average: 0.85, 1.26, 1.17
- Tasks: 276 total, 2 running, 265 sleeping, 9 stopped, 0 zombie
- %Cpu(s): 22.8 us, 2.0 sy, 0.0 ni, 75.2 id, 0.0 wa, 0.0 hi, 0.0 si, 0.0 st
- KiB Mem: 1878560 total, 1659076 used, 219484 free, 67828 buffers
- KiB Swap: 32764 total, 0 used, 32764 free. 827728 cached Mem
-
- PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
- 2376 phablet 20 0 519360 120648 53824 R 23.0 6.4 40:53.06 unity8
- 20192 phablet 20 0 6260 1276 832 R 2.0 0.1 0:02.92 top
- 17694 root 20 0 0 0 0 S 1.0 0.0 0:06.05 kworker/0:2
- 1086 root 0 -20 7576 552 400 S 0.7 0.0 1:13.69 mpdecision
- 2575 phablet 20 0 567088 125860 51192 S 0.3 6.7 1:04.46 unity8-dash
- 1 root 20 0 4184 2560 1100 S 0.0 0.1 0:20.28 init
- 2 root -2 0 0 0 0 S 0.0 0.0 0:01.16 kthreadd
- 3 root 20 0 0 0 0 S 0.0 0.0 0:00.28 ksoftirqd/0
- 6 root rt 0 0 0 0 S 0.0 0.0 0:00.00 migration/0
- 16 root 0 -20 0 0 0 S 0.0 0.0 0:00.00 khelper
- 17 root 20 0 0 0 0 S 0.0 0.0 0:00.03 kdevtmpfs
- 18 root 0 -20 0 0 0 S 0.0 0.0 0:00.00 netns
- 19 root 0 -20 0 0 0 S 0.0 0.0 0:00.00 suspend_sys+
- 20 root 0 -20 0 0 0 S 0.0 0.0 0:00.00 suspend
- 22 root -51 0 0 0 0 S 0.0 0.0 0:00.00 irq/203-msm+
- 23 root 20 0 0 0 0 S 0.0 0.0 0:00.10 sync_supers
- 24 root 20 0 0 0 0 S 0.0 0.0 0:00.27 bdi-default
-
- Unity8 takes up 23% of CPU power. When the screen is on, this figure is
- much higher and sometimes rises to 60%.
+ As you can see from the attached output of the "top" command, Unity8
+ takes up 23% of CPU power when the screen is TURNED OFF. When the screen
+ is on, this figure is much higher and sometimes rises up to 60%.
** Description changed:
Since mako image r102 (vivid-proposed), the CPU usage of Unity8 is very excessive and increasing over time.
After boot, the phone runs smooth but after some time it lags heavily.
As you can see from the attached output of the "top" command, Unity8
- takes up 23% of CPU power when the screen is TURNED OFF. When the screen
+ consumes 23% of CPU power when the screen is TURNED OFF. When the screen
is on, this figure is much higher and sometimes rises up to 60%.
** Description changed:
Since mako image r102 (vivid-proposed), the CPU usage of Unity8 is very excessive and increasing over time.
After boot, the phone runs smooth but after some time it lags heavily.
As you can see from the attached output of the "top" command, Unity8
- consumes 23% of CPU power when the screen is TURNED OFF. When the screen
- is on, this figure is much higher and sometimes rises up to 60%.
+ consumes 23% of CPU power when the screen is TURNED OFF (command run via
+ adb). When the screen is on, this figure is much higher and sometimes
+ rises up to 60%.
--
You received this bug notification because you are a member of Ubuntu
Touch seeded packages, which is subscribed to unity8 in Ubuntu.
https://bugs.launchpad.net/bugs/1422898
Title:
Excessive CPU usage, even when the screen is turned off
Status in unity8 package in Ubuntu:
New
Bug description:
Since mako image r102 (vivid-proposed), the CPU usage of Unity8 is very excessive and increasing over time.
After boot, the phone runs smooth but after some time it lags heavily.
As you can see from the attached output of the "top" command, Unity8
consumes 23% of CPU power when the screen is TURNED OFF (command run
via adb). When the screen is on, this figure is much higher and
sometimes rises up to 60%.
To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/unity8/+bug/1422898/+subscriptions
References