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8334397: RISC-V: verify perf of ReverseBytesS/US

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Reviewed-by: fyang, luhenry
This commit is contained in:
Hamlin Li 2024-06-25 14:06:03 +00:00
parent 75a2afacc8
commit cae94b268d
4 changed files with 98 additions and 31 deletions
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24
test/micro/org/openjdk/bench/java/lang/Characters.java
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@ -35,6 +35,7 @@ import org.openjdk.jmh.annotations.Setup;
import org.openjdk.jmh.annotations.State;
import org.openjdk.jmh.annotations.Warmup;
import java.util.Random;
import java.util.concurrent.TimeUnit;
@BenchmarkMode(Mode.AverageTime)
@ -48,6 +49,29 @@ public class Characters {
@Param({"9", "65", "97", "223", "430"})
private int codePoint;
@Param("500")
private int size;
private char[] chars;
private char[] res;
@Setup
public void setup() {
Random r = new Random(0);
chars = new char[size];
res = new char[size];
for (int i = 0; i < size; i++) {
chars[i] = (char)r.nextInt(Character.MAX_VALUE + 1);
}
}
@Benchmark
public void reverseBytes() {
for (int i = 0; i < size; i++) {
res[i] = Character.reverseBytes(chars[i]);
}
}
@Benchmark
public boolean isDigit() {
return Character.isDigit(codePoint);