dequebench.swift

import Foundation

func test() {
  let object = NSObject()
  let cocoa = NSMutableArray()
  var swift = Array<AnyObject>()

  var start = Date()
  for _ in 1 ... 200_000 {
    cocoa.insert(object, at: 0)
  }
  var elapsed = -(start.timeIntervalSinceNow)
  print("Cocoa took \(elapsed) seconds to prepend 200k objects")
  
  start = Date()
  for _ in 1 ... 200_000 {
    swift.insert(object, at: 0)
  }
  elapsed = -(start.timeIntervalSinceNow)
  print("Swift took \(elapsed) seconds to prepend 200k objects")
}
test()