---
title: MTLLibraryOptimizationLevel
framework: metal
role: symbol
role_heading: Enumeration
path: metal/mtllibraryoptimizationlevel
---

# MTLLibraryOptimizationLevel

The optimization options for the Metal compiler.

## Declaration

```swift
enum MTLLibraryOptimizationLevel
```

## Topics

### Optimization options

- [MTLLibraryOptimizationLevel.default](metal/mtllibraryoptimizationlevel/default.md)
- [MTLLibraryOptimizationLevel.size](metal/mtllibraryoptimizationlevel/size.md)

### Initializers

- [init(rawValue:)](metal/mtllibraryoptimizationlevel/init(rawvalue:).md)

## Relationships

### Conforms To

- [BitwiseCopyable](swift/bitwisecopyable.md)
- [Equatable](swift/equatable.md)
- [Hashable](swift/hashable.md)
- [RawRepresentable](swift/rawrepresentable.md)
- [Sendable](swift/sendable.md)
- [SendableMetatype](swift/sendablemetatype.md)

## See Also

### Shader library management

- [MTLLibrary](metal/mtllibrary.md)
- [MTLDynamicLibrary](metal/mtldynamiclibrary.md)
- [MTLBinaryArchive](metal/mtlbinaryarchive.md)
- [MTLCompileOptions](metal/mtlcompileoptions.md)
- [MTLLibraryType](metal/mtllibrarytype.md)
- [MTLLanguageVersion](metal/mtllanguageversion.md)
- [MTLCompileSymbolVisibility](metal/mtlcompilesymbolvisibility.md)