Long scene load times on Android device since updating Unity

Target Platforms Mobile
1

Hi

My game had a load time of around 5-7 seconds when published from Unity 4. I’ve upgraded the project to Unity 5 and it now takes 30+ seconds. How can I debug this?

(its not using il2cpp)

Thanks

2

How many scenes do you have and how big is your project?

3

So I’ve narrowed this down to Audio. When I take audio out of the scene it loads in 7 seconds, with Audio is it loading in 1.5 minutes!

Whats the best format / compression for audio on Android? I’ve got lots of short samples fx, and 2 x 20 second loops for background audio.

Thanks

4

What is the version you are currently using?

I have a fix which is about to land in 5.3 beta, and then will be backported to 5.2 patch release.

5

I’ve got 5.2.1p4

Specifically what is the bug with this that is being fixed in 5.3?

Thanks

6

Audio moved to a new file which wasn’t handled properly on Android - that is why it’s slow.

7

Moved to a new file? There is no way for me to fix this in 5.2? Its not an import setting issue? Good to know its not just me.

Can I get on to the 5.3 beta to fix this issue? As long as it doesn’t break other stuff in my app.

Thanks

8

No that’s not an asset import setting or issue - it’s about the way Android Player handles packaged assets, and we have a fix for that in our code.
You’ll have it fixed in one of the upcoming 5.2 patch releases, probably in a week or two. Stay tuned!

9

Thanks for the update. Is there a link to the issue on the public bug tracker?

This is a critical issue for anyone publishing Android games, as massively increased load times = unhappy players, low review scores and loss of earnings.

Please try and make sure this bug fix is top priority for the next patch release.

Many thanks

10

The fix is planned for 5.2.2 Patch 4, expected on 11th November. Check it out and let me know if it works for you.

11

:frowning: my iphone6plus start up less than 1 second. but android need 4-5 seconds in Splash window…

12

@ChiuanWei , are you checking an Android phone with similar hardware/price, or a cheap alternative? :slight_smile:

I’m not an iOS expert, but on Android we show the splash screen after the engine is initialized, while iOS “cheats” and shows it before the initialization.

13

great, how is 5.2.2 p4 going?

14

Looks like it has been postponed due to some issues. Planned to go live on Monday.

15

Thank you, a slightly unrelated question, are you aware of any issues with Unity 4.6.9x and Android 6 on scene loading.
It seems to be a strange issue when user downloads game first time scene loading takes ages and nothing happens.
Then when the user restarts device, all is fine… Tested on Nexus 9 pad - Android 6

16

@MrEsquire - never heard of that.
What do you see in the logs?

17

See this thread, maybe related: Unity Bug Fix - Problem (Android 6) - Urgent - Unity Engine - Unity Discussions
Please provide me official reply as for sure there few Android 6 issues around.

18

Just updated to the patch release, load times have dropped from 1:15 to 0:15

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