gson_klaxon_benchmark.kt

import com.beust.klaxon.Klaxon
import com.google.gson.Gson

data class Person(val name: String, val age: Int)

fun main() {
    val p = Person("x", 10)
    var cnt = 0
    repeat(10000) {
        val gson = Gson()
        val personString = gson.toJson(p)
        val personJson = gson.fromJson(personString, Person::class.java)
        cnt += personJson.age
    }
    val start = System.currentTimeMillis()
    repeat(10000) {
        val gson = Gson()
        val personString = gson.toJson(p)
        val personJson = gson.fromJson(personString, Person::class.java)
        cnt += personJson.age
    }
    val end = System.currentTimeMillis()
    println("Average duration with GSON: ${(end - start)/10000.0}ms")

    repeat(10000) {
        val klaxon = Klaxon()
        val personString = klaxon.toJsonString(p)
        val personJson = klaxon.parse<Person>(personString)!!
        cnt += personJson.age
    }
    val start2 = System.currentTimeMillis()
    repeat(10000) {
        val klaxon = Klaxon()
        val personString = klaxon.toJsonString(p)
        val personJson = klaxon.parse<Person>(personString)!!
        cnt += personJson.age
    }
    val end2 = System.currentTimeMillis()
    println("Average duration with Klaxon: ${(end2 - start2)/10000.0}ms")


    val klaxon = Klaxon()
    repeat(10000) {
        val personString = klaxon.toJsonString(p)
        val personJson = klaxon.parse<Person>(personString)!!
        cnt += personJson.age
    }
    val start3 = System.currentTimeMillis()
    repeat(10000) {
        val personString = klaxon.toJsonString(p)
        val personJson = klaxon.parse<Person>(personString)!!
        cnt += personJson.age
    }
    val end3 = System.currentTimeMillis()
    println("Average duration with Klaxon() instantiated once: ${(end3 - start3)/10000.0}ms")
}