Do we know why the Tesla iOS app is 760 MB? Can it be made smaller? Does a bear...nvm
This is a fun one, b/c the Tesla app does something not many other apps do
🔬 Taking a look at Tesla's app size + exploring
This is a fun one, b/c the Tesla app does something not many other apps do
🔬 Taking a look at Tesla's app size + exploring
Immediately what jumps out is that ~30% of the app is `Tesla.pck` (241.2 MB)
A .pck is a file format for bundling Godot assets (scenes, scripts, shaders, etc)
Out of all the app's that we download, this is *by far* the largest .pck included in an app
A .pck is a file format for bundling Godot assets (scenes, scripts, shaders, etc)
Out of all the app's that we download, this is *by far* the largest .pck included in an app
We can see Godot included in all of Tesla's plugins + the main app target
This is how Tesla creates 3d model interactivity in the app
(remember this b/c we'll be coming back to the plugins)
This is how Tesla creates 3d model interactivity in the app
(remember this b/c we'll be coming back to the plugins)
The cool thing about a .pck (and the internet) is that we can actually decompile it to see raw assets + project structure.
We can even open it in Godot 👀
We can even open it in Godot 👀
That's the Godot functionality - how could Tesla make the app smaller?
Remember how Godot was shipping in each Plugin? There are 5 plugins in Tesla for a total of 188.3 MB
The contents of each Plugin appear to be ~nearly~ identical
Remember how Godot was shipping in each Plugin? There are 5 plugins in Tesla for a total of 188.3 MB
The contents of each Plugin appear to be ~nearly~ identical
We can see this pretty clearly in the diff between v4.47.0 and v4.42.0 when the app increased by 50 MB
Each plugin added the same three `SwiftModules_*.bundle` files + had similar increases in binary size
Each plugin added the same three `SwiftModules_*.bundle` files + had similar increases in binary size
A better way to look at it - the deep red is duplicate nodes (there are quite a few)
So ~190 MB (25%) of Tesla is coming from Plugins, which could be significantly reduced by using a dynamic framework
So ~190 MB (25%) of Tesla is coming from Plugins, which could be significantly reduced by using a dynamic framework
Other area for improvement - Tesla (uses RN) has a 96.6 MB main.jsbundle, but 26.7 MB is "debug info"
The debug info is meant to provide better stack traces, but it doesn't need to be in prod b/c you can provide it separately to crash reporters
The debug info is meant to provide better stack traces, but it doesn't need to be in prod b/c you can provide it separately to crash reporters
A few other areas Tesla can reduce size
- Image optimization
- removing unneeded binary metadata
- minifying localizations
- Image optimization
- removing unneeded binary metadata
- minifying localizations
Some links if you're looking to dive in more:
Using Dynamic Frameworks
emergetools.com/blog/posts/mak…
Using Dynamic Frameworks
emergetools.com/blog/posts/mak…
gdsdecomp, the Godot decompiler we used
github.com/GDRETools/gdsd…
github.com/GDRETools/gdsd…
S/o @ssickle42 for the initial tag!
https://x.com/ssickle42/status/1967695694359302182
And lastly... now that we have our feet under us at @getsentry we're going to get back to active here so plz tag us if you want to know about an app!
You might even see a pretty different UI soon 👀👀👀
You might even see a pretty different UI soon 👀👀👀
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