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** Changed in: linux (Ubuntu)
Status: New => Incomplete
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https://bugs.launchpad.net/bugs/1234743
Title:
init on samsung galaxy nexus is busy and consuming memory when playing
an mp4
Status in “linux” package in Ubuntu:
Incomplete
Status in “upstart” package in Ubuntu:
Incomplete
Bug description:
Playing an mp4 on a Samsung Galaxy Nexus using today's image (3 Oct
2013) for 30 minutes I observed that init is busy and also consuming
heap quite rapidly.
Attached is the output from running health-check (found in PPA:colin-
king/white) on init pid 1114.
Key points:
1. messages being read/written at ~600 messages a second, hence the high
context switch rate and ~4.9% CPU load.
2. heap consumption: ~30K a second using brk() and 2K a second via mmap
To reproduce:
Install health-check:
sudo add-apt-repository ppa:colin-king/white
sudo apt-get update && sudo apt-get install health-check
Download a large mp4 to the phone. Keep screen from blanking using:
sudo powerd-cli display on bright &
then play the mp4:
dbus-launch mediaplayer-app test.mp4
--desktop_file_hint=/usr/share/applications/mediaplayer-app.desktop
--stage_hint=main_stage
And then observe that init is busy for 300 seconds:
ps -e | grep init
1 ? 00:02:56 init
348 ? 00:00:00 init
1114 ? 00:03:22 init
sudo health-check -p 1114 -d 300
Attached are my results for a 30 minute run.
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