PerformanceTracing.swift

import os.log

// Example adds logging for specific opertaion which can be traced and analyzed 
// later by Xcode Profile Instruments

let log = OSLog(subsystem: "com.yourapp.subsystem", category: "performance")
let signpostID = OSSignpostID(log: log)

func performOperation() {
    os_signpost(.begin, log: log, name: "Perform Operation", signpostID: signpostID)
    
    // Simulated operation
    for _ in 0..<1000000 {
        _ = 1 + 1
    }
    
    os_signpost(.end, log: log, name: "Perform Operation", signpostID: signpostID)
}

// Example usage
performOperation()