Question 1

How to measure nested code execution time in Swift?

Accepted Answer

Use Duration's nested measurement feature by calling Duration.measure inside another block; the output will be indented to show hierarchical timing, as demonstrated in the README with examples like 'Part 1 took: 100ms' under a parent measurement.

Question 2

Swift Duration vs Xcode Instruments for performance testing?

Accepted Answer

Duration is a lightweight, code-level tool for simple timing and benchmarking within Swift projects, ideal for quick profiling during development. In contrast, Xcode Instruments offers comprehensive system-wide profiling with GUI, memory analysis, and deeper integration, but requires more setup and is platform-specific.

Question 3

How to disable Duration logging in release builds?

Accepted Answer

Set Duration.logStyle = .None to disable all output, or use pushLogStyle(.None) and popLogStyle() within library code to temporarily suppress logging without affecting consumers, as outlined in the README's log control section.

Question 4

Can Duration be used for benchmarking Swift algorithms on Linux?

Accepted Answer

Yes, Duration is cross-platform and supports Linux, making it suitable for server-side Swift projects. You can use the iterative measurement feature to run multiple iterations and compute averages, helping benchmark algorithm performance across different environments.

Question 5

What are good alternatives to Duration for Swift performance measurement?

Accepted Answer

Consider using OS-signpost for integrated tracing with Xcode Instruments, or libraries like SwiftMetrics for more advanced monitoring. For lightweight timing, Swift's DispatchQueue or custom timers might suffice, but Duration adds nested and statistical features not always available elsewhere.

Question 6

Does Duration work with Swift Package Manager on all Apple platforms?

Accepted Answer

Yes, Duration is installed via Swift Package Manager and is compatible with iOS, macOS, tvOS, and Linux. The README provides a Package.swift snippet for easy integration, ensuring it works across Swift projects without additional dependencies.

Duration

What is Duration?

Overview

Use Cases

Best For

Related Projects

Found a gem we're missing?

Not Ideal For

Pros & Cons

Pros

Cons

Frequently Asked Questions