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systemd package

  1. Bug #1234743
  2. Comment #0

Comment 0 for bug 1234743

Revision history for this message
Colin Ian King (colin-king) wrote : init on samsung galaxy nexus is busy and consuming memory when playing an mp4

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.