 @inline(never)
 public func run_StringToDataEmpty(_ N: Int) {
     let s = ""
-    for _ in 0..<10000 * N {
+    for _ in 0..<200 * N {
         let d = Data(s.utf8)
         blackHole(d)
     }

@inline(never)
public func run_DataToStringEmpty(_ N: Int) {
    let d = Data()
    for _ in 0..<10000 * N {
        let s = String(decoding: d, as: UTF8.self)
        blackHole(s)
    }

    case .string: return sampleString()
    case .immutableBacking: return sampleBridgedNSData()
    }

}

func benchmark_AccessBytes(_ N: Int, _ data: Data) {
