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8267844: Replace Integer/Long.valueOf() with Integer/Long.parse*() where applicable

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Reviewed-by: redestad
This commit is contained in:
Sergey Tsypanov 2021-08-12 10:03:52 +00:00 • committed by Claes Redestad
parent d38b31438d
commit b29fbad940
6 changed files with 31 additions and 13 deletions
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14
test/micro/org/openjdk/bench/java/lang/Longs.java
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@ -35,6 +35,7 @@ import org.openjdk.jmh.annotations.State;
import org.openjdk.jmh.annotations.Warmup;
import org.openjdk.jmh.infra.Blackhole;
import java.util.concurrent.ThreadLocalRandom;
import java.util.concurrent.TimeUnit;
@BenchmarkMode(Mode.AverageTime)
@ -48,16 +49,20 @@ public class Longs {
@Param("500")
private int size;
private String[] strings;
private long[] longArraySmall;
private long[] longArrayBig;
@Setup
public void setup() {
var random = ThreadLocalRandom.current();
strings = new String[size];
longArraySmall = new long[size];
longArrayBig = new long[size];
for (int i = 0; i < size; i++) {
strings[i] = "" + (random.nextLong(10000) - 5000);
longArraySmall[i] = 100L * i + i + 103L;
longArrayBig[i] = ((100L * i + i) << 32) + 4543 + i * 4;
longArrayBig[i] = ((100L * i + i) << 32) + 4543 + i * 4L;
}
}
@ -69,6 +74,13 @@ public class Longs {
}
}
@Benchmark
public void decode(Blackhole bh) {
for (String s : strings) {
bh.consume(Long.decode(s));
}
}
/** Performs toString on large values, around 10 digits. */
@Benchmark
public void toStringBig(Blackhole bh) {