[GitHub] [beam] kennknowles commented on a change in pull request #10949: [BEAM-9371] Add SideInputLoadTest to Java SDK
kennknowles commented on a change in pull request #10949: [BEAM-9371] Add
SideInputLoadTest to Java SDK
URL: https://github.com/apache/beam/pull/10949#discussion_r386745270
##
File path:
sdks/java/testing/load-tests/src/main/java/org/apache/beam/sdk/loadtests/SideInputLoadTest.java
##
@@ -0,0 +1,243 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements. See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership. The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.apache.beam.sdk.loadtests;
+
+import java.io.IOException;
+import java.util.ArrayList;
+import java.util.List;
+import java.util.Map;
+import java.util.Optional;
+import java.util.Random;
+import org.apache.beam.sdk.io.synthetic.SyntheticStep;
+import org.apache.beam.sdk.options.Default;
+import org.apache.beam.sdk.options.Description;
+import org.apache.beam.sdk.options.Validation;
+import org.apache.beam.sdk.testutils.metrics.ByteMonitor;
+import org.apache.beam.sdk.transforms.DoFn;
+import org.apache.beam.sdk.transforms.ParDo;
+import org.apache.beam.sdk.transforms.View;
+import org.apache.beam.sdk.transforms.windowing.FixedWindows;
+import org.apache.beam.sdk.transforms.windowing.Window;
+import org.apache.beam.sdk.values.KV;
+import org.apache.beam.sdk.values.PCollection;
+import org.apache.beam.sdk.values.PCollectionView;
+import org.joda.time.Duration;
+import org.joda.time.Instant;
+
+/**
+ * Load test for operations involving side inputs.
+ *
+ * The purpose of this test is to measure cost of materialization or lookup
of side inputs. It
+ * uses synthetic sources and {@link SyntheticStep} which can be parametrized
to generate records
+ * with various sizes of keys and values, impose delays in the pipeline and
simulate other
+ * performance challenges.
+ *
+ * To run the test manually, use the following command:
+ *
+ *
+ * ./gradlew :sdks:java:testing:load-tests:run -PloadTest.args='
+ *--sourceOptions={"numRecords":2000, ...}
+ *--sideInputType=ITERABLE
+ *--accessPercentage=1
+ *--windowCount=200
+ *
+ */
+public class SideInputLoadTest extends LoadTest {
+
+ private static final String METRICS_NAMESPACE = "sideinput";
+ private static final Instant TIME = new Instant();
+
+ public SideInputLoadTest(String[] args) throws IOException {
+super(args, Options.class, METRICS_NAMESPACE);
+ }
+
+ @Override
+ void loadTest() throws IOException {
+Optional syntheticStep =
createStep(options.getStepOptions());
+PCollection> input =
+pipeline
+.apply(readFromSource(sourceOptions))
+.apply(ParDo.of(new AddTimestamps()))
+.apply("Collect start time metrics", ParDo.of(runtimeMonitor))
+.apply(ParDo.of(new ByteMonitor(METRICS_NAMESPACE,
"totalBytes.count")));
+
+performTestWithSideInput(
+input,
SideInputMaterializationType.valueOf(options.getSideInputType()),
syntheticStep);
+ }
+
+ private void performTestWithSideInput(
+ PCollection> input,
+ SideInputMaterializationType sideInputType,
+ Optional syntheticStep) {
+switch (sideInputType) {
+ case ITERABLE:
+performTestWithIterable(input, syntheticStep);
+break;
+ case HASHMAP:
+performTestWithHashMap(input, syntheticStep);
+break;
+ case LIST:
+performTestWithList(input, syntheticStep);
+break;
+}
+ }
+
+ private void performTestWithList(
+ PCollection> input, Optional
syntheticStep) {
+applyStepIfPresent(input, "Synthetic step", syntheticStep);
+PCollectionView>> sideInput =
input.apply(View.asList());
+input
+.apply(ParDo.of(new
SideInputTestWithList(sideInput)).withSideInputs(sideInput))
+.apply("Collect end time metrics", ParDo.of(runtimeMonitor));
+ }
+
+ private void performTestWithHashMap(
+ PCollection> input, Optional
syntheticStep) {
+applyStepIfPresent(input, "Synthetic step", syntheticStep);
+PCollectionView> sideInput = input.apply(View.asMap());
+input
+.apply(ParDo.of(new
SideInputTestWithHashMap(sideInput)).withSideInputs(sideInput))
+.apply("Collect end time metrics", ParDo.of(runtimeMonitor));
+ }
+
+ private void performTestWithIterable(
+ PCollection> input, Optional
syntheticStep) {
+applyStepIfPresent(input,
[GitHub] [beam] kennknowles commented on a change in pull request #10949: [BEAM-9371] Add SideInputLoadTest to Java SDK
kennknowles commented on a change in pull request #10949: [BEAM-9371] Add
SideInputLoadTest to Java SDK
URL: https://github.com/apache/beam/pull/10949#discussion_r386744848
##
File path:
sdks/java/testing/load-tests/src/main/java/org/apache/beam/sdk/loadtests/SideInputLoadTest.java
##
@@ -0,0 +1,243 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements. See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership. The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.apache.beam.sdk.loadtests;
+
+import java.io.IOException;
+import java.util.ArrayList;
+import java.util.List;
+import java.util.Map;
+import java.util.Optional;
+import java.util.Random;
+import org.apache.beam.sdk.io.synthetic.SyntheticStep;
+import org.apache.beam.sdk.options.Default;
+import org.apache.beam.sdk.options.Description;
+import org.apache.beam.sdk.options.Validation;
+import org.apache.beam.sdk.testutils.metrics.ByteMonitor;
+import org.apache.beam.sdk.transforms.DoFn;
+import org.apache.beam.sdk.transforms.ParDo;
+import org.apache.beam.sdk.transforms.View;
+import org.apache.beam.sdk.transforms.windowing.FixedWindows;
+import org.apache.beam.sdk.transforms.windowing.Window;
+import org.apache.beam.sdk.values.KV;
+import org.apache.beam.sdk.values.PCollection;
+import org.apache.beam.sdk.values.PCollectionView;
+import org.joda.time.Duration;
+import org.joda.time.Instant;
+
+/**
+ * Load test for operations involving side inputs.
+ *
+ * The purpose of this test is to measure cost of materialization or lookup
of side inputs. It
+ * uses synthetic sources and {@link SyntheticStep} which can be parametrized
to generate records
+ * with various sizes of keys and values, impose delays in the pipeline and
simulate other
+ * performance challenges.
+ *
+ * To run the test manually, use the following command:
+ *
+ *
+ * ./gradlew :sdks:java:testing:load-tests:run -PloadTest.args='
+ *--sourceOptions={"numRecords":2000, ...}
+ *--sideInputType=ITERABLE
+ *--accessPercentage=1
+ *--windowCount=200
+ *
+ */
+public class SideInputLoadTest extends LoadTest {
+
+ private static final String METRICS_NAMESPACE = "sideinput";
+ private static final Instant TIME = new Instant();
+
+ public SideInputLoadTest(String[] args) throws IOException {
+super(args, Options.class, METRICS_NAMESPACE);
+ }
+
+ @Override
+ void loadTest() throws IOException {
+Optional syntheticStep =
createStep(options.getStepOptions());
+PCollection> input =
+pipeline
+.apply(readFromSource(sourceOptions))
+.apply(ParDo.of(new AddTimestamps()))
+.apply("Collect start time metrics", ParDo.of(runtimeMonitor))
+.apply(ParDo.of(new ByteMonitor(METRICS_NAMESPACE,
"totalBytes.count")));
+
+performTestWithSideInput(
+input,
SideInputMaterializationType.valueOf(options.getSideInputType()),
syntheticStep);
+ }
+
+ private void performTestWithSideInput(
+ PCollection> input,
+ SideInputMaterializationType sideInputType,
+ Optional syntheticStep) {
+switch (sideInputType) {
+ case ITERABLE:
+performTestWithIterable(input, syntheticStep);
+break;
+ case HASHMAP:
+performTestWithHashMap(input, syntheticStep);
+break;
+ case LIST:
+performTestWithList(input, syntheticStep);
+break;
+}
+ }
+
+ private void performTestWithList(
+ PCollection> input, Optional
syntheticStep) {
+applyStepIfPresent(input, "Synthetic step", syntheticStep);
+PCollectionView>> sideInput =
input.apply(View.asList());
+input
+.apply(ParDo.of(new
SideInputTestWithList(sideInput)).withSideInputs(sideInput))
+.apply("Collect end time metrics", ParDo.of(runtimeMonitor));
+ }
+
+ private void performTestWithHashMap(
+ PCollection> input, Optional
syntheticStep) {
+applyStepIfPresent(input, "Synthetic step", syntheticStep);
+PCollectionView> sideInput = input.apply(View.asMap());
+input
+.apply(ParDo.of(new
SideInputTestWithHashMap(sideInput)).withSideInputs(sideInput))
+.apply("Collect end time metrics", ParDo.of(runtimeMonitor));
+ }
+
+ private void performTestWithIterable(
+ PCollection> input, Optional
syntheticStep) {
+applyStepIfPresent(input,
[GitHub] [beam] kennknowles commented on a change in pull request #10949: [BEAM-9371] Add SideInputLoadTest to Java SDK
kennknowles commented on a change in pull request #10949: [BEAM-9371] Add
SideInputLoadTest to Java SDK
URL: https://github.com/apache/beam/pull/10949#discussion_r386743300
##
File path:
sdks/java/testing/load-tests/src/main/java/org/apache/beam/sdk/loadtests/SideInputLoadTest.java
##
@@ -0,0 +1,243 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements. See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership. The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.apache.beam.sdk.loadtests;
+
+import java.io.IOException;
+import java.util.ArrayList;
+import java.util.List;
+import java.util.Map;
+import java.util.Optional;
+import java.util.Random;
+import org.apache.beam.sdk.io.synthetic.SyntheticStep;
+import org.apache.beam.sdk.options.Default;
+import org.apache.beam.sdk.options.Description;
+import org.apache.beam.sdk.options.Validation;
+import org.apache.beam.sdk.testutils.metrics.ByteMonitor;
+import org.apache.beam.sdk.transforms.DoFn;
+import org.apache.beam.sdk.transforms.ParDo;
+import org.apache.beam.sdk.transforms.View;
+import org.apache.beam.sdk.transforms.windowing.FixedWindows;
+import org.apache.beam.sdk.transforms.windowing.Window;
+import org.apache.beam.sdk.values.KV;
+import org.apache.beam.sdk.values.PCollection;
+import org.apache.beam.sdk.values.PCollectionView;
+import org.joda.time.Duration;
+import org.joda.time.Instant;
+
+/**
+ * Load test for operations involving side inputs.
+ *
+ * The purpose of this test is to measure cost of materialization or lookup
of side inputs. It
+ * uses synthetic sources and {@link SyntheticStep} which can be parametrized
to generate records
+ * with various sizes of keys and values, impose delays in the pipeline and
simulate other
+ * performance challenges.
+ *
+ * To run the test manually, use the following command:
+ *
+ *
+ * ./gradlew :sdks:java:testing:load-tests:run -PloadTest.args='
+ *--sourceOptions={"numRecords":2000, ...}
+ *--sideInputType=ITERABLE
+ *--accessPercentage=1
+ *--windowCount=200
+ *
+ */
+public class SideInputLoadTest extends LoadTest {
+
+ private static final String METRICS_NAMESPACE = "sideinput";
+ private static final Instant TIME = new Instant();
+
+ public SideInputLoadTest(String[] args) throws IOException {
+super(args, Options.class, METRICS_NAMESPACE);
+ }
+
+ @Override
+ void loadTest() throws IOException {
+Optional syntheticStep =
createStep(options.getStepOptions());
+PCollection> input =
+pipeline
+.apply(readFromSource(sourceOptions))
+.apply(ParDo.of(new AddTimestamps()))
+.apply("Collect start time metrics", ParDo.of(runtimeMonitor))
+.apply(ParDo.of(new ByteMonitor(METRICS_NAMESPACE,
"totalBytes.count")));
+
+performTestWithSideInput(
+input,
SideInputMaterializationType.valueOf(options.getSideInputType()),
syntheticStep);
+ }
+
+ private void performTestWithSideInput(
+ PCollection> input,
+ SideInputMaterializationType sideInputType,
+ Optional syntheticStep) {
+switch (sideInputType) {
+ case ITERABLE:
+performTestWithIterable(input, syntheticStep);
+break;
+ case HASHMAP:
+performTestWithHashMap(input, syntheticStep);
+break;
+ case LIST:
+performTestWithList(input, syntheticStep);
+break;
+}
+ }
+
+ private void performTestWithList(
+ PCollection> input, Optional
syntheticStep) {
+applyStepIfPresent(input, "Synthetic step", syntheticStep);
+PCollectionView>> sideInput =
input.apply(View.asList());
+input
+.apply(ParDo.of(new
SideInputTestWithList(sideInput)).withSideInputs(sideInput))
+.apply("Collect end time metrics", ParDo.of(runtimeMonitor));
+ }
+
+ private void performTestWithHashMap(
+ PCollection> input, Optional
syntheticStep) {
+applyStepIfPresent(input, "Synthetic step", syntheticStep);
+PCollectionView> sideInput = input.apply(View.asMap());
+input
+.apply(ParDo.of(new
SideInputTestWithHashMap(sideInput)).withSideInputs(sideInput))
+.apply("Collect end time metrics", ParDo.of(runtimeMonitor));
+ }
+
+ private void performTestWithIterable(
+ PCollection> input, Optional
syntheticStep) {
+applyStepIfPresent(input,
[GitHub] [beam] kennknowles commented on a change in pull request #10949: [BEAM-9371] Add SideInputLoadTest to Java SDK
kennknowles commented on a change in pull request #10949: [BEAM-9371] Add
SideInputLoadTest to Java SDK
URL: https://github.com/apache/beam/pull/10949#discussion_r386745742
##
File path:
sdks/java/testing/load-tests/src/main/java/org/apache/beam/sdk/loadtests/SideInputLoadTest.java
##
@@ -0,0 +1,243 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements. See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership. The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.apache.beam.sdk.loadtests;
+
+import java.io.IOException;
+import java.util.ArrayList;
+import java.util.List;
+import java.util.Map;
+import java.util.Optional;
+import java.util.Random;
+import org.apache.beam.sdk.io.synthetic.SyntheticStep;
+import org.apache.beam.sdk.options.Default;
+import org.apache.beam.sdk.options.Description;
+import org.apache.beam.sdk.options.Validation;
+import org.apache.beam.sdk.testutils.metrics.ByteMonitor;
+import org.apache.beam.sdk.transforms.DoFn;
+import org.apache.beam.sdk.transforms.ParDo;
+import org.apache.beam.sdk.transforms.View;
+import org.apache.beam.sdk.transforms.windowing.FixedWindows;
+import org.apache.beam.sdk.transforms.windowing.Window;
+import org.apache.beam.sdk.values.KV;
+import org.apache.beam.sdk.values.PCollection;
+import org.apache.beam.sdk.values.PCollectionView;
+import org.joda.time.Duration;
+import org.joda.time.Instant;
+
+/**
+ * Load test for operations involving side inputs.
+ *
+ * The purpose of this test is to measure cost of materialization or lookup
of side inputs. It
+ * uses synthetic sources and {@link SyntheticStep} which can be parametrized
to generate records
+ * with various sizes of keys and values, impose delays in the pipeline and
simulate other
+ * performance challenges.
+ *
+ * To run the test manually, use the following command:
+ *
+ *
+ * ./gradlew :sdks:java:testing:load-tests:run -PloadTest.args='
+ *--sourceOptions={"numRecords":2000, ...}
+ *--sideInputType=ITERABLE
+ *--accessPercentage=1
+ *--windowCount=200
+ *
+ */
+public class SideInputLoadTest extends LoadTest {
+
+ private static final String METRICS_NAMESPACE = "sideinput";
+ private static final Instant TIME = new Instant();
+
+ public SideInputLoadTest(String[] args) throws IOException {
+super(args, Options.class, METRICS_NAMESPACE);
+ }
+
+ @Override
+ void loadTest() throws IOException {
+Optional syntheticStep =
createStep(options.getStepOptions());
+PCollection> input =
+pipeline
+.apply(readFromSource(sourceOptions))
+.apply(ParDo.of(new AddTimestamps()))
+.apply("Collect start time metrics", ParDo.of(runtimeMonitor))
+.apply(ParDo.of(new ByteMonitor(METRICS_NAMESPACE,
"totalBytes.count")));
+
+performTestWithSideInput(
+input,
SideInputMaterializationType.valueOf(options.getSideInputType()),
syntheticStep);
+ }
+
+ private void performTestWithSideInput(
+ PCollection> input,
+ SideInputMaterializationType sideInputType,
+ Optional syntheticStep) {
+switch (sideInputType) {
+ case ITERABLE:
+performTestWithIterable(input, syntheticStep);
+break;
+ case HASHMAP:
+performTestWithHashMap(input, syntheticStep);
+break;
+ case LIST:
+performTestWithList(input, syntheticStep);
+break;
+}
+ }
+
+ private void performTestWithList(
+ PCollection> input, Optional
syntheticStep) {
+applyStepIfPresent(input, "Synthetic step", syntheticStep);
+PCollectionView>> sideInput =
input.apply(View.asList());
+input
+.apply(ParDo.of(new
SideInputTestWithList(sideInput)).withSideInputs(sideInput))
+.apply("Collect end time metrics", ParDo.of(runtimeMonitor));
+ }
+
+ private void performTestWithHashMap(
+ PCollection> input, Optional
syntheticStep) {
+applyStepIfPresent(input, "Synthetic step", syntheticStep);
+PCollectionView> sideInput = input.apply(View.asMap());
+input
+.apply(ParDo.of(new
SideInputTestWithHashMap(sideInput)).withSideInputs(sideInput))
+.apply("Collect end time metrics", ParDo.of(runtimeMonitor));
+ }
+
+ private void performTestWithIterable(
+ PCollection> input, Optional
syntheticStep) {
+applyStepIfPresent(input,
[GitHub] [beam] kennknowles commented on a change in pull request #10949: [BEAM-9371] Add SideInputLoadTest to Java SDK
kennknowles commented on a change in pull request #10949: [BEAM-9371] Add
SideInputLoadTest to Java SDK
URL: https://github.com/apache/beam/pull/10949#discussion_r386740644
##
File path:
sdks/java/testing/load-tests/src/main/java/org/apache/beam/sdk/loadtests/SideInputLoadTest.java
##
@@ -0,0 +1,243 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements. See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership. The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.apache.beam.sdk.loadtests;
+
+import java.io.IOException;
+import java.util.ArrayList;
+import java.util.List;
+import java.util.Map;
+import java.util.Optional;
+import java.util.Random;
+import org.apache.beam.sdk.io.synthetic.SyntheticStep;
+import org.apache.beam.sdk.options.Default;
+import org.apache.beam.sdk.options.Description;
+import org.apache.beam.sdk.options.Validation;
+import org.apache.beam.sdk.testutils.metrics.ByteMonitor;
+import org.apache.beam.sdk.transforms.DoFn;
+import org.apache.beam.sdk.transforms.ParDo;
+import org.apache.beam.sdk.transforms.View;
+import org.apache.beam.sdk.transforms.windowing.FixedWindows;
+import org.apache.beam.sdk.transforms.windowing.Window;
+import org.apache.beam.sdk.values.KV;
+import org.apache.beam.sdk.values.PCollection;
+import org.apache.beam.sdk.values.PCollectionView;
+import org.joda.time.Duration;
+import org.joda.time.Instant;
+
+/**
+ * Load test for operations involving side inputs.
+ *
+ * The purpose of this test is to measure cost of materialization or lookup
of side inputs. It
+ * uses synthetic sources and {@link SyntheticStep} which can be parametrized
to generate records
+ * with various sizes of keys and values, impose delays in the pipeline and
simulate other
+ * performance challenges.
+ *
+ * To run the test manually, use the following command:
+ *
+ *
+ * ./gradlew :sdks:java:testing:load-tests:run -PloadTest.args='
+ *--sourceOptions={"numRecords":2000, ...}
+ *--sideInputType=ITERABLE
+ *--accessPercentage=1
+ *--windowCount=200
+ *
+ */
+public class SideInputLoadTest extends LoadTest {
+
+ private static final String METRICS_NAMESPACE = "sideinput";
Review comment:
What are the metrics? Should they be described in the Javadoc? I read the
superclass and did not see much explanation there either.
The code here makes OK sense but is not enough information to use it. So I
am just wondering what the experience is for someone who wants to use the class
to build a new load test.
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[GitHub] [beam] kennknowles commented on a change in pull request #10949: [BEAM-9371] Add SideInputLoadTest to Java SDK
kennknowles commented on a change in pull request #10949: [BEAM-9371] Add
SideInputLoadTest to Java SDK
URL: https://github.com/apache/beam/pull/10949#discussion_r386743669
##
File path:
sdks/java/testing/load-tests/src/main/java/org/apache/beam/sdk/loadtests/SideInputLoadTest.java
##
@@ -0,0 +1,243 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements. See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership. The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.apache.beam.sdk.loadtests;
+
+import java.io.IOException;
+import java.util.ArrayList;
+import java.util.List;
+import java.util.Map;
+import java.util.Optional;
+import java.util.Random;
+import org.apache.beam.sdk.io.synthetic.SyntheticStep;
+import org.apache.beam.sdk.options.Default;
+import org.apache.beam.sdk.options.Description;
+import org.apache.beam.sdk.options.Validation;
+import org.apache.beam.sdk.testutils.metrics.ByteMonitor;
+import org.apache.beam.sdk.transforms.DoFn;
+import org.apache.beam.sdk.transforms.ParDo;
+import org.apache.beam.sdk.transforms.View;
+import org.apache.beam.sdk.transforms.windowing.FixedWindows;
+import org.apache.beam.sdk.transforms.windowing.Window;
+import org.apache.beam.sdk.values.KV;
+import org.apache.beam.sdk.values.PCollection;
+import org.apache.beam.sdk.values.PCollectionView;
+import org.joda.time.Duration;
+import org.joda.time.Instant;
+
+/**
+ * Load test for operations involving side inputs.
+ *
+ * The purpose of this test is to measure cost of materialization or lookup
of side inputs. It
+ * uses synthetic sources and {@link SyntheticStep} which can be parametrized
to generate records
+ * with various sizes of keys and values, impose delays in the pipeline and
simulate other
+ * performance challenges.
+ *
+ * To run the test manually, use the following command:
+ *
+ *
+ * ./gradlew :sdks:java:testing:load-tests:run -PloadTest.args='
+ *--sourceOptions={"numRecords":2000, ...}
+ *--sideInputType=ITERABLE
+ *--accessPercentage=1
+ *--windowCount=200
+ *
+ */
+public class SideInputLoadTest extends LoadTest {
+
+ private static final String METRICS_NAMESPACE = "sideinput";
+ private static final Instant TIME = new Instant();
+
+ public SideInputLoadTest(String[] args) throws IOException {
+super(args, Options.class, METRICS_NAMESPACE);
+ }
+
+ @Override
+ void loadTest() throws IOException {
+Optional syntheticStep =
createStep(options.getStepOptions());
+PCollection> input =
+pipeline
+.apply(readFromSource(sourceOptions))
+.apply(ParDo.of(new AddTimestamps()))
+.apply("Collect start time metrics", ParDo.of(runtimeMonitor))
+.apply(ParDo.of(new ByteMonitor(METRICS_NAMESPACE,
"totalBytes.count")));
+
+performTestWithSideInput(
+input,
SideInputMaterializationType.valueOf(options.getSideInputType()),
syntheticStep);
+ }
+
+ private void performTestWithSideInput(
+ PCollection> input,
+ SideInputMaterializationType sideInputType,
+ Optional syntheticStep) {
+switch (sideInputType) {
+ case ITERABLE:
+performTestWithIterable(input, syntheticStep);
+break;
+ case HASHMAP:
+performTestWithHashMap(input, syntheticStep);
+break;
+ case LIST:
+performTestWithList(input, syntheticStep);
+break;
+}
+ }
+
+ private void performTestWithList(
+ PCollection> input, Optional
syntheticStep) {
+applyStepIfPresent(input, "Synthetic step", syntheticStep);
+PCollectionView>> sideInput =
input.apply(View.asList());
+input
+.apply(ParDo.of(new
SideInputTestWithList(sideInput)).withSideInputs(sideInput))
+.apply("Collect end time metrics", ParDo.of(runtimeMonitor));
+ }
+
+ private void performTestWithHashMap(
+ PCollection> input, Optional
syntheticStep) {
+applyStepIfPresent(input, "Synthetic step", syntheticStep);
+PCollectionView> sideInput = input.apply(View.asMap());
+input
+.apply(ParDo.of(new
SideInputTestWithHashMap(sideInput)).withSideInputs(sideInput))
+.apply("Collect end time metrics", ParDo.of(runtimeMonitor));
+ }
+
+ private void performTestWithIterable(
+ PCollection> input, Optional
syntheticStep) {
+applyStepIfPresent(input,
