Fix for long benchmarks (#4396)

performance/shared/src/main/kotlin/org/jetbrains/benchmarksLauncher/launcher.kt

@@ -81,7 +81,10 @@ abstract class Launcher {
         if (benchmark.useAutoEvaluatedNumberOfMeasure) {
             val time = runBenchmark(benchmarkInstance, benchmark, 1)
             if (time < expectedDuration)
-                autoEvaluatedNumberOfMeasureIteration = (expectedDuration / time).toInt() / 4 * 4
+                // Made auto evaluated number of measurements to be a multiple of 4.
+                // Loops which iteration number is a multiple of 4 execute optimally,
+                // because of different optimizations on processor (e.g. LSD)
+                autoEvaluatedNumberOfMeasureIteration = ((expectedDuration / time).toInt() / 4 + 1) * 4
         }
         logger.log("Running benchmark $name ")
         for (k in 0.until(numberOfAttempts)) {