stan/jdk-24
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

8343844: Add benchmarks for superword/autovectorization in FFM BulkOperations

Browse Source 
Reviewed-by: mcimadamore
This commit is contained in:
Per Minborg 2024-11-08 16:36:57 +00:00
parent 72f67fb16a
commit 2fb0c1dd62
1 changed files with 36 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

36
test/micro/org/openjdk/bench/java/lang/foreign/SegmentBulkFill.java
View File

@ -38,6 +38,7 @@ import org.openjdk.jmh.annotations.Warmup;
import java.lang.foreign.Arena; import java.lang.foreign.Arena;
import java.lang.foreign.MemorySegment; import java.lang.foreign.MemorySegment;
import java.lang.foreign.ValueLayout;
import java.nio.ByteBuffer; import java.nio.ByteBuffer;
import java.util.Arrays; import java.util.Arrays;
import java.util.concurrent.TimeUnit; import java.util.concurrent.TimeUnit;
@ -74,6 +75,20 @@ public class SegmentBulkFill {
Arrays.fill(array, (byte) 0); Arrays.fill(array, (byte) 0);
} }
@Benchmark
public void arraysFillLoop() {
for (int i = 0; i < array.length; i++) {
array[i] = 0;
}
}
@Benchmark
public void bufferFillLoop() {
for (int i = 0; i < array.length; i++) {
buffer.put(i, (byte)0);
}
}
@Fork(value = 3, jvmArgs = {"-Djava.lang.foreign.native.threshold.power.fill=31"}) @Fork(value = 3, jvmArgs = {"-Djava.lang.foreign.native.threshold.power.fill=31"})
@Benchmark @Benchmark
public void heapSegmentFillJava() { public void heapSegmentFillJava() {
@ -86,6 +101,13 @@ public class SegmentBulkFill {
heapSegment.fill((byte) 0); heapSegment.fill((byte) 0);
} }
@Benchmark
public void heapSegmentFillLoop() {
for (long i = 0; i < heapSegment.byteSize(); i++) {
heapSegment.set(ValueLayout.JAVA_BYTE, i, (byte) 0);
}
}
@Fork(value = 3, jvmArgs = {"-Djava.lang.foreign.native.threshold.power.fill=31"}) @Fork(value = 3, jvmArgs = {"-Djava.lang.foreign.native.threshold.power.fill=31"})
@Benchmark @Benchmark
public void nativeSegmentFillJava() { public void nativeSegmentFillJava() {
@ -98,6 +120,13 @@ public class SegmentBulkFill {
nativeSegment.fill((byte) 0); nativeSegment.fill((byte) 0);
} }
@Benchmark
public void nativeSegmentFillLoop() {
for (long i = 0; i < nativeSegment.byteSize(); i++) {
nativeSegment.set(ValueLayout.JAVA_BYTE, i, (byte) 0);
}
}
@Fork(value = 3, jvmArgs = {"-Djava.lang.foreign.native.threshold.power.fill=31"}) @Fork(value = 3, jvmArgs = {"-Djava.lang.foreign.native.threshold.power.fill=31"})
@Benchmark @Benchmark
public void unalignedSegmentFillJava() { public void unalignedSegmentFillJava() {
@ -110,4 +139,11 @@ public class SegmentBulkFill {
unalignedSegment.fill((byte) 0); unalignedSegment.fill((byte) 0);
} }
@Benchmark
public void unalignedSegmentFillLoop() {
for (long i = 0; i < unalignedSegment.byteSize(); i++) {
unalignedSegment.set(ValueLayout.JAVA_BYTE, i, (byte) 0);
}
}
} }