Offline deletion take too long time to remove a downloaded content

[nampdn]

• What version of Shaka Player are you using?
  2.0.6

  • Can you reproduce the issue with our latest release version?
    Yes
  • Can you reproduce the issue with the latest code from master?
    Yes

• Are you using the demo app or your own custom app?
  Custom

  • If custom app, can you reproduce the issue using our demo app?

• What browser and OS are you using?
  Chrome Android, Crosswalk + Ionic + Cordova

• What did you do?
  Remove downloaded offline file. 18MB of content take ~34 seconds to remove.

  • What content did you load?
    My own content

    • If standard demo asset, which one?

    • If custom asset, what manifest and license server URIs?

  • How did you interact with the content, if at all?

• What did you expect to happen?
  Immediate or nearly immediate content deletion.

• What actually happened?
  Deletion take very long time to remove the offline content.

[joeyparrish]

@phamduongnhatnam, can you reproduce this issue:

1. on desktop Chrome?
2. on Android Chrome directly without Crosswalk or Cordova?

[nampdn]

Yes,

1. On Chrome desktop:

• Download 207MB of content then delete it takes 17.49 seconds.

2. On Cordova with Crosswalk latest (on Chrome Android has a little bit faster):

• Download the same file with 207MB, it takes 59.4 seconds.

P/s: Sometimes in Cordova (with Crosswalk) delete bigger file would cause the app to crash, I don't know but I think it consumes a lot of memory to delete a file.

[joeyparrish]

@phamduongnhatnam, I can't support Cordova or Crosswalk directly, but since you can reproduce slow deletes on desktop Chrome, it should be easy enough for us to look into. Thanks for the report.

[nampdn]

@joeyparrish Thanks, I know that cordova/crosswalk is not a main point for us.

[vaage]

@phamduongnhatnam I was able to improve the delete performance. Please run this through your benchmarking and let us know if it meets your expectations.

[joeyparrish]

This fix was just released in v2.1.2.

[nampdn]

@joeyparrish Once again your work is awesome!

[joeyparrish]

I'm just the messenger! Thanks belong to @vaage for this one.