/* __ __ __ __ __ ___
* \ \ / / \ \ / / __/
* \ \/ / /\ \ \/ / /
* \____/__/ \__\____/__/.ɪᴏ
* ᶜᵒᵖʸʳᶦᵍʰᵗ ᵇʸ ᵛᵃᵛʳ ⁻ ˡᶦᶜᵉⁿˢᵉᵈ ᵘⁿᵈᵉʳ ᵗʰᵉ ᵃᵖᵃᶜʰᵉ ˡᶦᶜᵉⁿˢᵉ ᵛᵉʳˢᶦᵒⁿ ᵗʷᵒ ᵈᵒᵗ ᶻᵉʳᵒ
*/
package io.vavr.collection;
import io.vavr.JmhRunner;
import org.eclipse.collections.api.list.MutableList;
import org.junit.Test;
import org.openjdk.jmh.annotations.*;
import org.openjdk.jmh.infra.Blackhole;
import scala.collection.generic.CanBuildFrom;
import scala.math.Ordering;
import scala.math.Ordering$;
import java.util.Comparator;
import java.util.Objects;
import java.util.Random;
import static java.util.Arrays.asList;
import static java.util.stream.Collectors.groupingBy;
import static java.util.stream.Collectors.toList;
import static io.vavr.JmhRunner.Includes.*;
import static io.vavr.JmhRunner.*;
import static io.vavr.collection.Collections.areEqual;
import static io.vavr.collection.Vector.collector;
import static scala.collection.JavaConverters.asJavaCollection;
import static scala.collection.JavaConverters.asScalaBuffer;
@SuppressWarnings({ "ALL", "unchecked", "rawtypes" })
public class VectorBenchmark {
static final Array<Class<?>> CLASSES = Array.of(
Create.class,
Head.class,
Tail.class,
Get.class,
Update.class,
Map.class,
Filter.class,
Prepend.class,
PrependAll.class,
Append.class,
AppendAll.class,
Insert.class,
GroupBy.class,
Slice.class,
Sort.class,
Iterate.class
);
@Test
public void testAsserts() { JmhRunner.runDebugWithAsserts(CLASSES); }
public static void main(String... args) {
JmhRunner.runDebugWithAsserts(CLASSES);
JmhRunner.runNormalNoAsserts(CLASSES, JAVA, FUNCTIONAL_JAVA, PCOLLECTIONS, ECOLLECTIONS, CLOJURE, SCALA, VAVR);
}
@State(Scope.Benchmark)
public static class Base {
@Param({ "10", "100", "1026" })
public int CONTAINER_SIZE;
int EXPECTED_AGGREGATE;
Integer[] ELEMENTS;
int[] INT_ELEMENTS;
int[] RANDOMIZED_INDICES;
/* Only use this for non-mutating operations */
java.util.ArrayList<Integer> javaMutable;
fj.data.Seq<Integer> fjavaPersistent;
org.pcollections.PVector<Integer> pCollectionsPersistent;
org.eclipse.collections.api.list.ImmutableList<Integer> eCollectionsPersistent;
clojure.lang.PersistentVector clojurePersistent;
scala.collection.immutable.Vector<Integer> scalaPersistent;
io.vavr.collection.Vector<Integer> vavrPersistent;
io.vavr.collection.Vector<Integer> vavrPersistentInt;
io.vavr.collection.Vector<Byte> vavrPersistentByte;
@Setup
public void setup() {
final Random random = new Random(0);
ELEMENTS = getRandomValues(CONTAINER_SIZE, false, random);
INT_ELEMENTS = ArrayType.asPrimitives(int.class, Array.of(ELEMENTS));
RANDOMIZED_INDICES = shuffle(Array.range(0, CONTAINER_SIZE).toJavaStream().mapToInt(Integer::intValue).toArray(), random);
EXPECTED_AGGREGATE = Array.of(ELEMENTS).reduce(JmhRunner::aggregate);
javaMutable = create(java.util.ArrayList::new, asList(ELEMENTS), v -> areEqual(v, asList(ELEMENTS)));
fjavaPersistent = create(fj.data.Seq::fromJavaList, javaMutable, v -> areEqual(v, javaMutable));
pCollectionsPersistent = create(org.pcollections.TreePVector::from, javaMutable, v -> areEqual(v, javaMutable));
eCollectionsPersistent = create(org.eclipse.collections.impl.factory.Lists.immutable::ofAll, javaMutable, v -> areEqual(v, javaMutable));
clojurePersistent = create(clojure.lang.PersistentVector::create, javaMutable, v -> areEqual(v, javaMutable));
scalaPersistent = create(v -> (scala.collection.immutable.Vector<Integer>) scala.collection.immutable.Vector$.MODULE$.apply(asScalaBuffer(v)), javaMutable, v -> areEqual(asJavaCollection(v), javaMutable));
vavrPersistent = create(io.vavr.collection.Vector::ofAll, javaMutable, v -> areEqual(v, javaMutable));
vavrPersistentInt = create(v -> io.vavr.collection.Vector.ofAll(INT_ELEMENTS), javaMutable, v -> areEqual(v, javaMutable) && (v.trie.type.type() == int.class));
final byte[] BYTE_ELEMENTS = new byte[CONTAINER_SIZE];
random.nextBytes(BYTE_ELEMENTS);
vavrPersistentByte = create(v -> io.vavr.collection.Vector.ofAll(BYTE_ELEMENTS), javaMutable, v -> areEqual(v, Array.ofAll(BYTE_ELEMENTS)) && (v.trie.type.type() == byte.class));
}
}
/** Bulk creation from array based, boxed source */
public static class Create extends Base {
@Benchmark
public Object java_mutable() {
final java.util.List<Integer> values = new java.util.ArrayList<>(java.util.Arrays.asList(ELEMENTS));
assert areEqual(values, javaMutable);
return values;
}
@Benchmark
public Object java_mutable_boxed() {
final java.util.List<Integer> values = new java.util.ArrayList<>();
for (int i = 0; i < CONTAINER_SIZE; i++) {
values.add(INT_ELEMENTS[i]);
}
assert areEqual(values, javaMutable);
return values;
}
@Benchmark
public Object java_mutable_boxed_stream() {
final java.util.List<Integer> values = java.util.Arrays.stream(INT_ELEMENTS).boxed().collect(toList());
assert areEqual(values, javaMutable);
return values;
}
@Benchmark
public Object fjava_persistent() {
final fj.data.Seq<Integer> values = fj.data.Seq.fromJavaList(javaMutable);
assert areEqual(values, javaMutable);
return values;
}
@Benchmark
public Object pcollections_persistent() {
final org.pcollections.PVector<Integer> values = org.pcollections.TreePVector.from(javaMutable);
assert areEqual(values, javaMutable);
return values;
}
@Benchmark
public Object ecollections_persistent() {
final org.eclipse.collections.api.list.ImmutableList<Integer> values = org.eclipse.collections.impl.factory.Lists.immutable.ofAll(javaMutable);
assert areEqual(values, javaMutable);
return values;
}
@Benchmark
public Object clojure_persistent() {
final clojure.lang.PersistentVector values = clojure.lang.PersistentVector.create(javaMutable);
assert areEqual(values, javaMutable);
return values;
}
@Benchmark
public Object scala_persistent() {
final scala.collection.immutable.Vector<?> values = scala.collection.immutable.Vector$.MODULE$.apply(scalaPersistent);
assert Objects.equals(values, scalaPersistent);
return values;
}
@Benchmark
public Object vavr_persistent() {
final io.vavr.collection.Vector<Integer> values = io.vavr.collection.Vector.ofAll(javaMutable);
assert areEqual(values, javaMutable);
return values;
}
@Benchmark
public Object vavr_persistent_int() {
final io.vavr.collection.Vector<Integer> values = io.vavr.collection.Vector.ofAll(INT_ELEMENTS);
assert (values.trie.type.type() == int.class) && areEqual(values, javaMutable);
return values;
}
}
public static class Head extends Base {
@Benchmark
public Object java_mutable() {
final Object head = javaMutable.get(0);
assert Objects.equals(head, ELEMENTS[0]);
return head;
}
@Benchmark
public Object fjava_persistent() {
final Object head = fjavaPersistent.head();
assert Objects.equals(head, javaMutable.get(0));
return head;
}
@Benchmark
public Object pcollections_persistent() {
final Object head = pCollectionsPersistent.get(0);
assert Objects.equals(head, javaMutable.get(0));
return head;
}
@Benchmark
public Object ecollections_persistent() {
final Object head = eCollectionsPersistent.getFirst();
assert Objects.equals(head, javaMutable.get(0));
return head;
}
@Benchmark
public Object clojure_persistent() {
final Object head = clojurePersistent.nth(0);
assert Objects.equals(head, javaMutable.get(0));
return head;
}
@Benchmark
public Object scala_persistent() {
final Object head = scalaPersistent.head();
assert Objects.equals(head, javaMutable.get(0));
return head;
}
@Benchmark
public Object vavr_persistent() {
final Object head = vavrPersistent.head();
assert Objects.equals(head, javaMutable.get(0));
return head;
}
}
public static class Tail extends Base {
@State(Scope.Thread)
public static class Initialized {
final java.util.ArrayList<Integer> javaMutable = new java.util.ArrayList<>();
@Setup(Level.Invocation)
public void initializeMutable(Base state) {
java.util.Collections.addAll(javaMutable, state.ELEMENTS);
assert areEqual(javaMutable, asList(state.ELEMENTS));
}
@TearDown(Level.Invocation)
public void tearDown() { javaMutable.clear(); }
}
@Benchmark
public Object java_mutable(Initialized state) {
java.util.List<Integer> values = state.javaMutable;
for (int i = 0; i < CONTAINER_SIZE; i++) {
values = values.subList(1, values.size()); /* remove(0) would copy everything, but this will slow access down because of nesting */
}
assert values.isEmpty();
return values;
}
@Benchmark
public Object fjava_persistent() {
fj.data.Seq<Integer> values = fjavaPersistent;
for (int i = 0; i < CONTAINER_SIZE; i++) {
values = values.tail();
}
assert values.isEmpty();
return values;
}
@Benchmark
public Object pcollections_persistent() {
org.pcollections.PVector<Integer> values = pCollectionsPersistent;
for (int i = 0; i < CONTAINER_SIZE; i++) {
values = values.minus(0);
}
assert values.isEmpty();
return values;
}
@Benchmark
public Object ecollections_persistent() {
org.eclipse.collections.api.list.ImmutableList<Integer> values = eCollectionsPersistent;
for (int i = 0; i < CONTAINER_SIZE; i++) {
values = values.drop(1);
}
assert values.isEmpty() && (values != eCollectionsPersistent);
return values;
}
@Benchmark
public void clojure_persistent(Blackhole bh) { /* stores the whole collection underneath */
java.util.List<?> values = clojurePersistent;
while (!values.isEmpty()) {
values = values.subList(1, values.size());
bh.consume(values);
}
}
@Benchmark
public Object scala_persistent() {
scala.collection.immutable.Vector<Integer> values = scalaPersistent;
for (int i = 0; i < CONTAINER_SIZE; i++) {
values = values.tail();
}
assert ((scala.collection.immutable.Seq) values).isEmpty();
return values;
}
@Benchmark
public Object vavr_persistent() {
io.vavr.collection.Vector<Integer> values = vavrPersistent;
for (int i = 0; i < CONTAINER_SIZE; i++) {
values = values.tail();
}
assert values.isEmpty();
return values;
}
@Benchmark
public Object vavr_persistent_int() {
io.vavr.collection.Vector<Integer> values = vavrPersistentInt;
for (int i = 0; i < CONTAINER_SIZE; i++) {
values = values.tail();
}
assert values.isEmpty();
return values;
}
}
/** Aggregated, randomized access to every element */
public static class Get extends Base {
@Benchmark
public int java_mutable() {
int aggregate = 0;
for (int i : RANDOMIZED_INDICES) {
aggregate ^= javaMutable.get(i);
}
assert aggregate == EXPECTED_AGGREGATE;
return aggregate;
}
@Benchmark
public int fjava_persistent() {
int aggregate = 0;
for (int i : RANDOMIZED_INDICES) {
aggregate ^= fjavaPersistent.index(i);
}
assert aggregate == EXPECTED_AGGREGATE;
return aggregate;
}
@Benchmark
public int pcollections_persistent() {
int aggregate = 0;
for (int i : RANDOMIZED_INDICES) {
aggregate ^= pCollectionsPersistent.get(i);
}
assert aggregate == EXPECTED_AGGREGATE;
return aggregate;
}
@Benchmark
public int ecollections_persistent() {
int aggregate = 0;
for (int i : RANDOMIZED_INDICES) {
aggregate ^= eCollectionsPersistent.get(i);
}
assert aggregate == EXPECTED_AGGREGATE;
return aggregate;
}
@Benchmark
public int clojure_persistent() {
int aggregate = 0;
for (int i : RANDOMIZED_INDICES) {
aggregate ^= (int) clojurePersistent.get(i);
}
assert aggregate == EXPECTED_AGGREGATE;
return aggregate;
}
@Benchmark
public int scala_persistent() {
int aggregate = 0;
for (int i : RANDOMIZED_INDICES) {
aggregate ^= scalaPersistent.apply(i);
}
assert aggregate == EXPECTED_AGGREGATE;
return aggregate;
}
@Benchmark
public int vavr_persistent() {
int aggregate = 0;
for (int i : RANDOMIZED_INDICES) {
aggregate ^= vavrPersistent.get(i);
}
assert aggregate == EXPECTED_AGGREGATE;
return aggregate;
}
}
/** Randomized update of every element */
public static class Update extends Base {
@State(Scope.Thread)
public static class Initialized {
final java.util.ArrayList<Integer> javaMutable = new java.util.ArrayList<>();
@Setup(Level.Invocation)
public void initializeMutable(Base state) {
java.util.Collections.addAll(javaMutable, state.ELEMENTS);
assert areEqual(javaMutable, asList(state.ELEMENTS));
}
@TearDown(Level.Invocation)
public void tearDown() { javaMutable.clear(); }
}
@Benchmark
public Object java_mutable(Initialized state) {
final java.util.ArrayList<Integer> values = state.javaMutable;
for (int i : RANDOMIZED_INDICES) {
values.set(i, 0);
}
assert Array.ofAll(values).forAll(e -> e == 0);
return values;
}
@Benchmark
public Object fjava_persistent() {
fj.data.Seq<Integer> values = fjavaPersistent;
for (int i : RANDOMIZED_INDICES) {
values = values.update(i, 0);
}
assert Array.ofAll(values).forAll(e -> e == 0);
return values;
}
@Benchmark
public Object pcollections_persistent() {
org.pcollections.PVector<Integer> values = pCollectionsPersistent;
for (int i : RANDOMIZED_INDICES) {
values = values.with(i, 0);
}
assert Array.ofAll(values).forAll(e -> e == 0);
return values;
}
@Benchmark
public Object ecollections_persistent() {
org.eclipse.collections.api.list.ImmutableList<Integer> values = eCollectionsPersistent;
for (int i : RANDOMIZED_INDICES) {
final MutableList<Integer> copy = values.toList();
copy.set(i, 0);
values = copy.toImmutable();
}
assert Array.ofAll(values).forAll(e -> e == 0) && (values != eCollectionsPersistent);
return values;
}
@Benchmark
public Object clojure_persistent() {
clojure.lang.PersistentVector values = clojurePersistent;
for (int i : RANDOMIZED_INDICES) {
values = values.assocN(i, 0);
}
assert Array.of(values.toArray()).forAll(e -> Objects.equals(e, 0));
return values;
}
@Benchmark
public Object scala_persistent() {
scala.collection.immutable.Vector<Integer> values = scalaPersistent;
for (int i : RANDOMIZED_INDICES) {
values = values.updateAt(i, 0);
}
assert Array.ofAll(asJavaCollection(values)).forAll(e -> e == 0);
return values;
}
@Benchmark
public Object vavr_persistent() {
io.vavr.collection.Vector<Integer> values = vavrPersistent;
for (int i : RANDOMIZED_INDICES) {
values = values.update(i, 0);
}
assert values.forAll(e -> e == 0);
return values;
}
@Benchmark
public Object vavr_persistent_int() {
io.vavr.collection.Vector<Integer> values = vavrPersistentInt;
for (int i : RANDOMIZED_INDICES) {
values = values.update(i, 0);
}
assert (values.trie.type.type() == int.class) && values.forAll(e -> e == 0);
return values;
}
}
public static class Map extends Base {
final CanBuildFrom canBuildFrom = scala.collection.immutable.Vector.canBuildFrom();
private static int mapper(int i) { return i + 1; }
@Benchmark
public Object java_mutable_loop() {
final Integer[] values = ELEMENTS.clone();
for (int i = 0; i < CONTAINER_SIZE; i++) {
values[i] = mapper(values[i]);
}
assert areEqual(Array.of(values), Array.of(ELEMENTS).map(Map::mapper));
return values;
}
@Benchmark
public Object java_mutable() {
final java.util.List<Integer> values = javaMutable.stream().map(Map::mapper).collect(toList());
assert areEqual(values, Array.of(ELEMENTS).map(Map::mapper));
return values;
}
@Benchmark
public Object ecollections_persistent() {
final org.eclipse.collections.api.list.ImmutableList<Integer> values = eCollectionsPersistent.collect(Map::mapper);
assert areEqual(values, Array.of(ELEMENTS).map(Map::mapper));
return values;
}
@Benchmark
public Object scala_persistent() {
final scala.collection.immutable.Vector<Integer> values = (scala.collection.immutable.Vector<Integer>) ((scala.collection.Traversable<Integer>) scalaPersistent).map(Map::mapper, canBuildFrom);
assert areEqual(asJavaCollection(values), Array.of(ELEMENTS).map(Map::mapper));
return values;
}
@Benchmark
public Object vavr_persistent() {
final io.vavr.collection.Vector<Integer> values = vavrPersistent.map(Map::mapper);
assert areEqual(values, Array.of(ELEMENTS).map(Map::mapper));
return values;
}
@Benchmark
public Object vavr_persistent_int() {
final io.vavr.collection.Vector<Integer> values = vavrPersistentInt.map(Map::mapper);
assert areEqual(values, Array.of(ELEMENTS).map(Map::mapper));
return values;
}
}
public static class Filter extends Base {
private static boolean isOdd(int i) { return (i & 1) == 1; }
@Benchmark
public Object java_mutable() {
final java.util.List<Integer> someValues = javaMutable.stream().filter(Filter::isOdd).collect(toList());
assert areEqual(someValues, Array.of(ELEMENTS).filter(Filter::isOdd));
return someValues;
}
@Benchmark
public Object ecollections_persistent() {
final org.eclipse.collections.api.list.ImmutableList<Integer> someValues = eCollectionsPersistent.select(Filter::isOdd);
assert areEqual(someValues, Array.of(ELEMENTS).filter(Filter::isOdd));
return someValues;
}
@Benchmark
public Object scala_persistent() {
final scala.collection.immutable.Vector<Integer> someValues = (scala.collection.immutable.Vector<Integer>) ((scala.collection.Traversable<Integer>) scalaPersistent).filter(Filter::isOdd);
assert areEqual(asJavaCollection(someValues), Array.of(ELEMENTS).filter(Filter::isOdd));
return someValues;
}
@Benchmark
public Object vavr_persistent() {
final io.vavr.collection.Vector<Integer> someValues = vavrPersistent.filter(Filter::isOdd);
assert areEqual(someValues, Array.of(ELEMENTS).filter(Filter::isOdd));
return someValues;
}
@Benchmark
public Object vavr_persistent_int() {
final io.vavr.collection.Vector<Integer> someValues = vavrPersistentInt.filter(Filter::isOdd);
assert (someValues.trie.type.type() == int.class) && areEqual(someValues, Array.of(ELEMENTS).filter(Filter::isOdd));
return someValues;
}
}
public static class Prepend extends Base {
@Benchmark
public Object java_mutable() {
final java.util.ArrayList<Integer> values = new java.util.ArrayList<>(); /* no initial value, as we're simulating dynamic usage */
for (Integer element : ELEMENTS) {
values.add(0, element);
}
assert areEqual(Array.ofAll(values).reverse(), javaMutable);
return values;
}
@Benchmark
public Object fjava_persistent() {
fj.data.Seq<Integer> values = fj.data.Seq.empty();
for (Integer element : ELEMENTS) {
values = values.cons(element);
}
assert areEqual(Array.ofAll(values).reverse(), javaMutable);
return values;
}
@Benchmark
public Object pcollections_persistent() {
org.pcollections.PVector<Integer> values = org.pcollections.TreePVector.empty();
for (Integer element : ELEMENTS) {
values = values.plus(0, element);
}
assert areEqual(Array.ofAll(values).reverse(), javaMutable);
return values;
}
@Benchmark
public Object ecollections_persistent() {
org.eclipse.collections.api.list.ImmutableList<Integer> values = org.eclipse.collections.impl.factory.Lists.immutable.empty();
for (Integer element : ELEMENTS) {
final org.eclipse.collections.api.list.MutableList<Integer> copy = values.toList();
copy.add(0, element);
values = copy.toImmutable();
}
assert areEqual(values.toReversed(), javaMutable) && (values != eCollectionsPersistent);
return values;
}
@Benchmark
public Object clojure_persistent() {
clojure.lang.PersistentVector values = clojure.lang.PersistentVector.EMPTY;
for (int i = 0; i < ELEMENTS.length; i++) {
clojure.lang.PersistentVector prepended = clojure.lang.PersistentVector.create(ELEMENTS[i]);
for (Object value : values) {
prepended = prepended.cons(value); /* rebuild everything via append */
}
values = prepended;
}
assert areEqual(Array.ofAll(values).reverse(), javaMutable);
return values;
}
@Benchmark
public Object scala_persistent() {
scala.collection.immutable.Vector<Integer> values = scala.collection.immutable.Vector$.MODULE$.empty();
for (Integer element : ELEMENTS) {
values = values.appendFront(element);
}
assert areEqual(Array.ofAll(asJavaCollection(values)).reverse(), javaMutable);
return values;
}
@Benchmark
public Object vavr_persistent() {
io.vavr.collection.Vector<Integer> values = io.vavr.collection.Vector.empty();
for (Integer element : ELEMENTS) {
values = values.prepend(element);
}
assert areEqual(values.reverse(), javaMutable);
return values;
}
@Benchmark
public Object vavr_persistent_int() {
io.vavr.collection.Vector<Integer> values = io.vavr.collection.Vector.ofAll(ELEMENTS[0]);
for (int i = 1; i < ELEMENTS.length; i++) {
values = values.prepend(ELEMENTS[i]);
}
assert (values.trie.type.type() == int.class) && areEqual(values.reverse(), javaMutable);
return values;
}
}
public static class PrependAll extends Base {
final CanBuildFrom canBuildFrom = scala.collection.immutable.Vector.canBuildFrom();
@Benchmark
public void scala_persistent(Blackhole bh) {
for (int i = 0; i < CONTAINER_SIZE; i++) {
final java.util.List<Integer> front = javaMutable.subList(0, i);
final scala.collection.immutable.Vector<Integer> back = scalaPersistent.slice(i, CONTAINER_SIZE);
scala.collection.immutable.Vector<Integer> values = back;
for (int j = front.size() - 1; j >= 0; j--) {
values = values.appendFront(front.get(j));
}
assert areEqual(asJavaCollection(values), javaMutable);
bh.consume(values);
}
}
@Benchmark
public void vavr_persistent(Blackhole bh) {
for (int i = 0; i < CONTAINER_SIZE; i++) {
final java.util.List<Integer> front = javaMutable.subList(0, i);
final io.vavr.collection.Vector<Integer> back = vavrPersistent.slice(i, CONTAINER_SIZE);
final io.vavr.collection.Vector<Integer> values = back.prependAll(front);
assert areEqual(values, javaMutable);
bh.consume(values);
}
}
}
/** Add all elements (one-by-one, as we're not testing bulk operations) */
public static class Append extends Base {
@Benchmark
public Object java_mutable() {
final java.util.ArrayList<Integer> values = new java.util.ArrayList<>(); /* no initial value as we're simulating dynamic usage */
for (Integer element : ELEMENTS) {
values.add(element);
}
assert areEqual(values, javaMutable);
return values;
}
@Benchmark
public Object fjava_persistent() {
fj.data.Seq<Integer> values = fj.data.Seq.empty();
for (Integer element : ELEMENTS) {
values = values.snoc(element);
}
assert areEqual(values, javaMutable);
return values;
}
@Benchmark
public Object ecollections_persistent() {
org.eclipse.collections.api.list.ImmutableList<Integer> values = org.eclipse.collections.impl.factory.Lists.immutable.empty();
for (Integer element : ELEMENTS) {
final org.eclipse.collections.api.list.MutableList<Integer> copy = values.toList();
copy.add(element);
values = copy.toImmutable();
}
assert areEqual(values, javaMutable) && (values != eCollectionsPersistent);
return values;
}
@Benchmark
public Object pcollections_persistent() {
org.pcollections.PVector<Integer> values = org.pcollections.TreePVector.empty();
for (Integer element : ELEMENTS) {
values = values.plus(element);
}
assert areEqual(values, javaMutable);
return values;
}
@Benchmark
public Object clojure_persistent() {
clojure.lang.PersistentVector values = clojure.lang.PersistentVector.EMPTY;
for (Integer element : ELEMENTS) {
values = values.cons(element);
}
assert areEqual(values, javaMutable);
return values;
}
@Benchmark
public Object scala_persistent() {
scala.collection.immutable.Vector<Integer> values = scala.collection.immutable.Vector$.MODULE$.empty();
for (Integer element : ELEMENTS) {
values = values.appendBack(element);
}
assert areEqual(asJavaCollection(values), javaMutable);
return values;
}
@Benchmark
public Object vavr_persistent() {
io.vavr.collection.Vector<Integer> values = io.vavr.collection.Vector.empty();
for (Integer element : ELEMENTS) {
values = values.append(element);
}
assert areEqual(values, javaMutable);
return values;
}
@Benchmark
public Object vavr_persistent_int() {
io.vavr.collection.Vector<Integer> values = io.vavr.collection.Vector.ofAll(INT_ELEMENTS[0]);
for (int i = 1; i < INT_ELEMENTS.length; i++) {
values = values.append(INT_ELEMENTS[i]);
}
assert (values.trie.type.type() == int.class) && areEqual(values, javaMutable);
return values;
}
}
public static class AppendAll extends Base {
final CanBuildFrom canBuildFrom = scala.collection.immutable.Vector.canBuildFrom();
@Benchmark
public void scala_persistent(Blackhole bh) {
for (int i = 0; i < CONTAINER_SIZE; i++) {
final scala.collection.immutable.Vector<Integer> front = scalaPersistent.slice(0, i);
final java.util.List<Integer> back = javaMutable.subList(i, CONTAINER_SIZE);
final scala.collection.immutable.Vector<Integer> values = front.$plus$plus(asScalaBuffer(back), (CanBuildFrom<scala.collection.immutable.Vector<Integer>, Integer, scala.collection.immutable.Vector<Integer>>) canBuildFrom);
assert areEqual(asJavaCollection(values), javaMutable);
bh.consume(values);
}
}
@Benchmark
public void vavr_persistent(Blackhole bh) {
for (int i = 0; i < CONTAINER_SIZE; i++) {
final io.vavr.collection.Vector<Integer> front = vavrPersistent.slice(0, i);
final java.util.List<Integer> back = javaMutable.subList(i, CONTAINER_SIZE);
final io.vavr.collection.Vector<Integer> values = front.appendAll(back);
assert areEqual(values, javaMutable);
bh.consume(values);
}
}
}
public static class Insert extends Base {
@Benchmark
public void vavr_persistent(Blackhole bh) {
for (int i = 0; i < CONTAINER_SIZE; i++) {
final Vector<Integer> values = vavrPersistent.insert(i, 0);
assert values.size() == CONTAINER_SIZE + 1;
bh.consume(values);
}
}
}
public static class GroupBy extends Base {
@Benchmark
public Object java_mutable() { return javaMutable.stream().collect(groupingBy(Integer::bitCount)); }
@Benchmark
public Object scala_persistent() { return ((scala.collection.Seq<Integer>) scalaPersistent).groupBy(Integer::bitCount); }
@Benchmark
public Object vavr_persistent() { return vavrPersistent.groupBy(Integer::bitCount); }
}
/** Consume the vector one-by-one, from the front and back */
public static class Slice extends Base {
@Benchmark
public void java_mutable(Blackhole bh) { /* stores the whole collection underneath */
java.util.List<Integer> values = javaMutable;
while (!values.isEmpty()) {
values = values.subList(1, values.size());
values = values.subList(0, values.size() - 1);
bh.consume(values);
}
}
@Benchmark
public void pcollections_persistent(Blackhole bh) {
org.eclipse.collections.api.list.ImmutableList<Integer> values = eCollectionsPersistent;
for (int i = 1; !values.isEmpty(); i++) {
values = values.subList(1, values.size());
values = values.subList(0, values.size() - 1);
bh.consume(values);
}
}
@Benchmark
public void clojure_persistent(Blackhole bh) { /* stores the whole collection underneath */
java.util.List<?> values = clojurePersistent;
while (!values.isEmpty()) {
values = values.subList(1, values.size());
values = values.subList(0, values.size() - 1);
bh.consume(values);
}
}
@Benchmark
public void scala_persistent(Blackhole bh) {
scala.collection.immutable.Vector<Integer> values = scalaPersistent;
while (!values.isEmpty()) {
values = values.slice(1, values.size());
values = values.slice(0, values.size() - 1);
bh.consume(values);
}
}
@Benchmark
public void vavr_persistent(Blackhole bh) {
io.vavr.collection.Vector<Integer> values = vavrPersistent;
for (int i = 1; !values.isEmpty(); i++) {
values = values.slice(1, values.size());
values = values.slice(0, values.size() - 1);
bh.consume(values);
}
}
@Benchmark
public void vavr_persistent_int(Blackhole bh) {
io.vavr.collection.Vector<Integer> values = this.vavrPersistentInt;
while (!values.isEmpty()) {
values = values.slice(1, values.size());
values = values.slice(0, values.size() - 1);
bh.consume(values);
}
}
}
public static class Sort extends Base {
static final Ordering<Integer> SCALA_ORDERING = Ordering$.MODULE$.comparatorToOrdering(Integer::compareTo);
@State(Scope.Thread)
public static class Initialized {
final java.util.ArrayList<Integer> javaMutable = new java.util.ArrayList<>();
@Setup(Level.Invocation)
public void initializeMutable(Base state) {
java.util.Collections.addAll(javaMutable, state.ELEMENTS);
assert areEqual(javaMutable, asList(state.ELEMENTS));
}
@TearDown(Level.Invocation)
public void tearDown() { javaMutable.clear(); }
}
@Benchmark
public Object java_mutable(Initialized state) {
state.javaMutable.sort(Comparator.naturalOrder());
assert areEqual(state.javaMutable, vavrPersistent.sorted());
return state.javaMutable;
}
@Benchmark
public Object scala_persistent() {
final scala.collection.Seq<Integer> results = ((scala.collection.Seq<Integer>) scalaPersistent).sorted(SCALA_ORDERING);
assert areEqual(asJavaCollection(results), vavrPersistent.sorted());
return results;
}
@Benchmark
public Object vavr_persistent() {
final Vector<Integer> results = vavrPersistent.sorted();
assert areEqual(results, vavrPersistent.toJavaStream().sorted().collect(collector()));
return results;
}
}
/** Sequential access for all elements */
public static class Iterate extends Base {
@Benchmark
public int java_mutable() {
int aggregate = 0;
for (final java.util.Iterator<Integer> iterator = javaMutable.iterator(); iterator.hasNext(); ) {
aggregate ^= iterator.next();
}
assert aggregate == EXPECTED_AGGREGATE;
return aggregate;
}
@Benchmark
public int fjava_persistent() {
int aggregate = 0;
for (final java.util.Iterator<Integer> iterator = fjavaPersistent.iterator(); iterator.hasNext(); ) {
aggregate ^= iterator.next();
}
assert aggregate == EXPECTED_AGGREGATE;
return aggregate;
}
@Benchmark
public int ecollections_persistent() {
int aggregate = 0;
for (final java.util.Iterator<Integer> iterator = eCollectionsPersistent.iterator(); iterator.hasNext(); ) {
aggregate ^= iterator.next();
}
assert aggregate == EXPECTED_AGGREGATE;
return aggregate;
}
@Benchmark
public int pcollections_persistent() {
int aggregate = 0;
for (final java.util.Iterator<Integer> iterator = pCollectionsPersistent.iterator(); iterator.hasNext(); ) {
aggregate ^= iterator.next();
}
assert aggregate == EXPECTED_AGGREGATE;
return aggregate;
}
@Benchmark
public int clojure_persistent() {
int aggregate = 0;
for (final java.util.Iterator<Integer> iterator = clojurePersistent.iterator(); iterator.hasNext(); ) {
aggregate ^= iterator.next();
}
assert aggregate == EXPECTED_AGGREGATE;
return aggregate;
}
@Benchmark
public int scala_persistent() {
int aggregate = 0;
for (final scala.collection.Iterator<Integer> iterator = scalaPersistent.iterator(); iterator.hasNext(); ) {
aggregate ^= iterator.next();
}
assert aggregate == EXPECTED_AGGREGATE;
return aggregate;
}
@Benchmark
public int vavr_persistent() {
int aggregate = 0;
for (final Iterator<Integer> iterator = vavrPersistent.iterator(); iterator.hasNext(); ) {
aggregate ^= iterator.next();
}
assert aggregate == EXPECTED_AGGREGATE;
return aggregate;
}
@Benchmark
public int vavr_persistent_int() {
final int[] aggregate = { 0 };
vavrPersistentInt.trie.<int[]> visit((ordinal, leaf, start, end) -> {
for (int i = start; i < end; i++) {
aggregate[0] ^= leaf[i];
}
return -1;
});
assert aggregate[0] == EXPECTED_AGGREGATE;
return aggregate[0];
}
}
}