8312420: Integrate Graal's blender micro benchmark

Reviewed-by: dnsimon, thartmann, ksakata
This commit is contained in:
Joshua Cao 2023-08-01 10:48:38 +00:00 committed by Koichi Sakata
parent 0a3c6d6bd0
commit e36960ec6d

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@ -0,0 +1,104 @@
/*
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* 2 along with this work; if not, write to the Free Software Foundation,
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package org.openjdk.bench.vm.compiler.pea;
import org.openjdk.jmh.annotations.Benchmark;
import org.openjdk.jmh.annotations.BenchmarkMode;
import org.openjdk.jmh.annotations.Fork;
import org.openjdk.jmh.annotations.Measurement;
import org.openjdk.jmh.annotations.Mode;
import org.openjdk.jmh.annotations.Param;
import org.openjdk.jmh.annotations.Scope;
import org.openjdk.jmh.annotations.State;
import org.openjdk.jmh.annotations.OutputTimeUnit;
import org.openjdk.jmh.annotations.Warmup;
import java.util.concurrent.TimeUnit;
@BenchmarkMode(Mode.AverageTime)
@OutputTimeUnit(TimeUnit.NANOSECONDS)
@Warmup(iterations = 5, time = 1, timeUnit = TimeUnit.SECONDS)
@Measurement(iterations = 1, time = 1, timeUnit = TimeUnit.SECONDS)
@State(Scope.Benchmark)
@Fork(value = 3)
public class Blender {
@Param({"1", "2", "3", "4", "5", "6", "7", "8", "9", "10"})
int iteration;
private static class Color {
double r, g, b;
private Color(double r, double g, double b) {
this.r = r;
this.g = g;
this.b = b;
}
public static Color color() {
return new Color(0, 0, 0);
}
public void add(Color other) {
r += other.r;
g += other.g;
b += other.b;
}
public void add(double nr, double ng, double nb) {
r += nr;
g += ng;
b += nb;
}
public void multiply(double factor) {
r *= factor;
g *= factor;
b *= factor;
}
}
private static final Color[][][] colors = new Color[100][100][100];
@Benchmark
public void initialize() {
Color id = new Color(iteration / 20, 0, 1);
for (int x = 0; x < colors.length; x++) {
Color[][] plane = colors[x];
for (int y = 0; y < plane.length; y++) {
Color[] row = plane[y];
for (int z = 0; z < row.length; z++) {
Color color = new Color(x, y, z);
color.add(id);
if ((color.r + color.g + color.b) % 42 == 0) {
// PEA only allocates a color object here
row[z] = color;
} else {
// Here the color object is not allocated at all
}
}
}
}
}
}