     }
 
     func testSingleThreadPerformanceRead() {
-        let iterations = 100_000
+        let iterations = 250_000
         func doNothing() {}
 
         measure {

    }

    func test90PercentReads4ThreadsLock() {
        let iterations = 100_000
        let numberOfThreads = max(ProcessInfo.processInfo.processorCount, 2)
        let group = DispatchGroup()
        func doNothing() {}

    }

    func testSingleThreadPerformanceWrite() {
        let iterations = 250_000
        func doNothing() {}

        measure {
