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// Copyright Yahoo. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
package com.yahoo.vespa.hosted.provision;
import com.yahoo.config.provision.Flavor;
import com.yahoo.config.provision.NodeFlavors;
import com.yahoo.config.provision.NodeResources;
import com.yahoo.config.provision.NodeType;
import com.yahoo.config.provisioning.FlavorsConfig;
import com.yahoo.vespa.hosted.provision.node.IP;
import com.yahoo.vespa.hosted.provision.provisioning.FlavorConfigBuilder;
import com.yahoo.vespa.hosted.provision.provisioning.ProvisioningTester;
import org.junit.Ignore;
import org.junit.Test;
import java.time.Duration;
import java.time.Instant;
import java.util.ArrayList;
import java.util.Collection;
import java.util.List;
import java.util.Optional;
import java.util.Random;
/**
* @author hmusum
*/
public class NodeListMicroBenchmarkTest {
private static final NodeFlavors nodeFlavors = createNodeFlavors();
private final NodeResources resources0 = new NodeResources(1, 30, 20, 1.5);
private int nodeCounter = 0;
private static final int hostCount = 1000;
@Ignore
@Test
public void testChildrenOf() {
List<Node> nodes = createHosts();
List<Node> childNodes = nodes.stream().map(host -> createNodes(host.hostname())).flatMap(Collection::stream).toList();
nodes.addAll(childNodes);
NodeList nodeList = new NodeList(nodes, false);
int iterations = 100000;
Random random = new Random(0);
ArrayList<Integer> indexes = new ArrayList<>();
for (int i = 0; i < iterations; i++) {
indexes.add(random.nextInt(hostCount));
}
// Warmup for stable results.
for (int i = 0; i < 10000; i++) {
nodeList.childrenOf(nodes.get(indexes.get(i)));
}
Instant start = Instant.now();
for (int i = 0; i < iterations; i++) {
nodeList.childrenOf(nodes.get(indexes.get(i)));
}
Duration duration = Duration.between(start, Instant.now());
System.out.println("Calling NodeList.childrenOf took " + duration + " (" + duration.toNanos() / iterations / 1000 + " microseconds per invocation)");
}
private List<Node> createHosts() {
List<Node> hosts = new ArrayList<>();
for (int i = 0; i < hostCount; i++) {
hosts.add(Node.create("host" + i, IP.Config.of(List.of("::1"), createIps(), List.of()),
"host" + i, getFlavor("host"), NodeType.host).build());
}
return hosts;
}
private List<Node> createNodes(String parentHostname) {
List<Node> nodes = new ArrayList<>();
for (int i = 0; i < 10; i++) {
nodeCounter++;
Node node = Node.reserve(List.of("::2"), "node" + nodeCounter, parentHostname, resources0, NodeType.tenant).build();
nodes.add(node);
}
return nodes;
}
private static NodeFlavors createNodeFlavors() {
FlavorConfigBuilder builder = new FlavorConfigBuilder();
builder.addFlavor("host", 30, 30, 40, 3, Flavor.Type.BARE_METAL);
builder.addFlavor("node", 3, 3, 4, 3, Flavor.Type.DOCKER_CONTAINER);
FlavorsConfig flavorsConfig = builder.build();
return new NodeFlavors(Optional.ofNullable(flavorsConfig).orElseGet(ProvisioningTester::createConfig));
}
private Flavor getFlavor(String name) {
return nodeFlavors.getFlavor(name).orElseThrow(() -> new RuntimeException("Unknown flavor"));
}
private List<String> createIps() {
// Allow 4 containers
int start = 2;
int count = 4;
var ipAddressPool = new ArrayList<String>();
for (int i = start; i < (start + count); i++) {
ipAddressPool.add("::" + i);
}
return ipAddressPool;
}
}
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