Perf problems with Music on iPads

Hi,

I'm developing a game in the browser mainly for Apple hardware (I don't have much choice in the matter) and I'm encountering a problem that completely destroys the game experience.

After countless tests, I'm pretty sure that there is a memory leak when I play music on Apple hardware. Indeed, after playing a certain number of tunes, the game starts to gradually lose fps until it restarts the page due to a memory shortage problem.

These problems have been seen on Gen 6 iPads and on my old Macbook Pro 2011. On Safari, and also on Chrome.

For some reason I can't figure out, this problem does not appear on an iPad Pro.

While testing with a low-end android (wiko), a recent samsung galaxy, a Windows computer, no problem either.

Possible ways to solve the problem

I obviously tried a number of things:

• unload the music once it's finished: it's useless
• stop the music once it's finished: it's useless (Apple devices don't manage several audio tracks simultaneously and stop the previous track as soon as a new one is launched)
• I'm starting to wonder if I don't want to turn the music into sounds to test it. Any optinion?

Has anyone encountered a similar problem?

To illustrate this problem, I made an example that plays music every second (at -50db not to ruin your ears). The problem explained is fairly well reproduced in this example, but takes a few minutes to crash the page.

A link to the .c3p

Thanks for your insights!

Try to set the Framerate mode to v-sync in the advanced properties settings and look if that helps.

Unlimited should only used for testing.

Indeed. The unlimited mode was set in order to see more variation in the FPS during the test.

The game is indeed in V-sync.

Quick update:

If I put all the music in the sounds folder and preload the sounds, I have no leak. However, as soon as I start to try unloading the sounds (to lighten the memory load), I have crashes again.

As my game has 10 minutes of sounds, it's a 100MB to store in addition to all the visuals... It's not really ideal, especially for low-end devices.