# init(identifier:displayName:value:) Initializes a performance measurement for a single iteration with the value. ``` convenience init(identifier: String, displayName: String, value: Measurement) ``` ## Parameters `identifier` A unique identifier for the measurement. `displayName` A human-readable name for the measurement. `value` A value for the measurement. --- Copyright © 2026 Apple Inc. All rights reserved. | [Terms of Use](https://www.apple.com/legal/internet-services/terms/site.html) | [Privacy Policy](https://www.apple.com/privacy/privacy-policy)