---
title: "setIOCycleUsage(_:)"
framework: Core Audio
role: symbol
role_heading: Instance Method
platforms: [macOS 15.0+]
path: "coreaudio/audiohardwaredevice/setiocycleusage(_:)"
---

# setIOCycleUsage(_:)

Set the ioCycleUsage property.

## Declaration

```swift
func setIOCycleUsage(_ usage: Float) throws
```

## Parameters

- `usage`: A Float whose range is from 0 to 1. This value indicates how much of the client portion of the IO cycle the process will use.