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Stresstest fix - Add limits to the graph mutation stress test #244

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Merged
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Jul 10, 2025
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Stresstest fix - Add limits to the graph mutation stress test #244

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11 changes: 9 additions & 2 deletions ...test/src/jmh/java/com/datadoghq/profiler/stresstest/scenarios/counters/GraphMutation.java
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Expand Up @@ -3,17 +3,24 @@
import org.openjdk.jmh.annotations.Benchmark;
import org.openjdk.jmh.annotations.Threads;

import java.util.Queue;
import java.util.concurrent.ConcurrentLinkedQueue;
import java.util.concurrent.ThreadLocalRandom;
import java.util.concurrent.atomic.AtomicLong;

public class GraphMutation {

public static class GraphNode {
private final Queue<GraphNode> nodes = new ConcurrentLinkedQueue<>();
private volatile ConcurrentLinkedQueue<GraphNode> nodes = new ConcurrentLinkedQueue<>();
private final AtomicLong linkCount = new AtomicLong(0);

public void link(GraphNode node) {
nodes.add(node);

// Switch to new data structure every 100,000 operations
// Other threads can finish with the old one
if (linkCount.incrementAndGet() % 100000 == 0) {
nodes = new ConcurrentLinkedQueue<>();
}
}
}

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