68 lines
2.0 KiB
Kotlin
68 lines
2.0 KiB
Kotlin
/*
|
|
* Copyright 2025 Sergey S. Chernov real.sergeych@gmail.com
|
|
*
|
|
* Licensed under the Apache License, Version 2.0 (the "License");
|
|
* you may not use this file except in compliance with the License.
|
|
* You may obtain a copy of the License at
|
|
*
|
|
* http://www.apache.org/licenses/LICENSE-2.0
|
|
*
|
|
* Unless required by applicable law or agreed to in writing, software
|
|
* distributed under the License is distributed on an "AS IS" BASIS,
|
|
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
* See the License for the specific language governing permissions and
|
|
* limitations under the License.
|
|
*
|
|
*/
|
|
|
|
/*
|
|
* JVM micro-benchmark for scope frame pooling on instance method calls.
|
|
*/
|
|
|
|
import kotlinx.coroutines.runBlocking
|
|
import net.sergeych.lyng.PerfFlags
|
|
import net.sergeych.lyng.Scope
|
|
import net.sergeych.lyng.obj.ObjInt
|
|
import kotlin.test.Test
|
|
import kotlin.test.assertEquals
|
|
|
|
class MethodPoolingBenchmarkTest {
|
|
@Test
|
|
fun benchmarkInstanceMethodCallsWithPooling() = runBlocking {
|
|
val n = 300_000
|
|
val script = """
|
|
class C() {
|
|
var x = 0
|
|
fun add1() { x = x + 1 }
|
|
fun get() { x }
|
|
}
|
|
val c = C()
|
|
var i = 0
|
|
while (i < $n) {
|
|
c.add1()
|
|
i = i + 1
|
|
}
|
|
c.get()
|
|
""".trimIndent()
|
|
|
|
// Pool OFF
|
|
PerfFlags.SCOPE_POOL = false
|
|
val scope1 = Scope()
|
|
val t0 = System.nanoTime()
|
|
val r1 = (scope1.eval(script) as ObjInt).value
|
|
val t1 = System.nanoTime()
|
|
println("[DEBUG_LOG] [BENCH] method-loop x$n [SCOPE_POOL=OFF]: ${(t1 - t0)/1_000_000.0} ms")
|
|
|
|
// Pool ON
|
|
PerfFlags.SCOPE_POOL = true
|
|
val scope2 = Scope()
|
|
val t2 = System.nanoTime()
|
|
val r2 = (scope2.eval(script) as ObjInt).value
|
|
val t3 = System.nanoTime()
|
|
println("[DEBUG_LOG] [BENCH] method-loop x$n [SCOPE_POOL=ON]: ${(t3 - t2)/1_000_000.0} ms")
|
|
|
|
assertEquals(n.toLong(), r1)
|
|
assertEquals(n.toLong(), r2)
|
|
}
|
|
}
|