[ubuntu-mono] [Bug 396268] Re: Banshee uses too much CPU

[Alistair Buxton]

Been doing some more testing today, and I have a testcase:

1. Completely clear out the banshee library and config:

rm -rf ~/.config/banshee-1
rm -rf ~/.gconf/apps/banshee-1
rm -rf ~/.cache/banshee-1

2. Start up banshee (it should be like the first time) and turn off all
plugins except Play Queue.

3. Import a specially crafted MP3 which is 0.1 seconds long.

4. Set Playback->Repeat->Repeat Single

5. Play the MP3

Result: Banshee CPU usage swings wildly between 0 and 125%, the UI
becomes slow and unresponsive, virtual memory usage increases by 8mb per
second, and while I was writing this, it crashed.

** Attachment added: "Crafted MP3 demonstrating the bug"
   https://bugs.launchpad.net/banshee/+bug/396268/+attachment/2018058/+files/short.mp3

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https://bugs.launchpad.net/bugs/396268

Title:
  Banshee uses too much CPU

Status in Banshee Music Player:
  Confirmed
Status in “banshee” package in Ubuntu:
  Triaged

Bug description:
  Binary package hint: banshee

  While playing and minimized to the system tray, Banshee uses 65-70%
  CPU and also pushes pulseaudio CPU usage up to around 30%.
  Additionally, when using "next" or "previous" buttons Banshee CPU
  usage goes up to 150%. Importing approximately 6000 songs took over 20
  minutes, although the first 3000 or so only took about 5 minutes.

  System: P4 2.8 Ghz with hyperthreading, 2GB RAM

  Tested with latest Banshee from Jaunty repos and also the Banshee Team
  PPA version.