ContainsBenchmark.kt

package org.qwwdfsad.benchmarks

import org.openjdk.jmh.annotations.*
import java.util.concurrent.TimeUnit

/**
 * @author Tolstopyatov Vsevolod
 * @since 29/09/16
 */
@Fork(value = 2) //jvmArgsAppend = arrayOf("-XX:TieredStopAtLevel=1"))
@Measurement(iterations = 10)
@Warmup(iterations = 15)
@State(Scope.Benchmark)
@BenchmarkMode(Mode.AverageTime)
@OutputTimeUnit(TimeUnit.NANOSECONDS)
open class ContainsBenchmark() {

    var longValue: Long = 1L
    var intValue: Int = 1
    var doubleValue: Double = 1.0

    @Setup(Level.Iteration)
    fun init() {
        longValue = 2L
        intValue = 2
        doubleValue = 2.0
    }

    @Benchmark
    fun intIn(): Boolean {
        return intValue in 1..10
    }

    @Benchmark
    fun longIn(): Boolean {
        return longValue in 1L..10L
    }

    @Benchmark
    fun doubleIn(): Boolean {
        return doubleValue in 1.0..10.0
    }

    @Benchmark
    fun intCompare(): Boolean {
        val i = intValue
        return 1 <= i && i <= 10
    }

    @Benchmark
    fun longCompare(): Boolean {
        val i = longValue
        return 1L <= i && i <= 10L
    }

    @Benchmark
    fun doubleCompare(): Boolean {
        val i = doubleValue
        return 1.0 <= i && i <= 10.0
    }
}