Add Indy to benchmarks (#15236)

Author: jaydeluca

benchmark-overhead/README.md

@@ -79,6 +79,7 @@ Currently, we test:
 - no agent versus latest released agent
 - no agent versus latest snapshot
 - latest release vs. latest snapshot
+- latest snapshot with indy enabled
 
 Additional configurations can be created by submitting a PR against the `Configs` class.
 

benchmark-overhead/src/test/java/io/opentelemetry/agents/Agent.java

@@ -22,6 +22,12 @@ public class Agent {
       new Agent("latest", "latest mainstream release", OTEL_LATEST);
   public static final Agent LATEST_SNAPSHOT =
       new Agent("snapshot", "latest available snapshot version from main");
+  public static final Agent LATEST_SNAPSHOT_INDY =
+      new Agent(
+          "snapshot-indy",
+          "latest available snapshot version from main with indy enabled",
+          null,
+          Collections.singletonList("-Dotel.javaagent.experimental.indy=true"));
 
   private final String name;
   private final String description;

benchmark-overhead/src/test/java/io/opentelemetry/agents/AgentResolver.java

@@ -24,7 +24,7 @@ public Optional<Path> resolve(Agent agent) throws Exception {
     if (Agent.NONE.equals(agent)) {
       return Optional.empty();
     }
-    if (Agent.LATEST_SNAPSHOT.equals(agent)) {
+    if (Agent.LATEST_SNAPSHOT.equals(agent) || Agent.LATEST_SNAPSHOT_INDY.equals(agent)) {
       return snapshotResolver.resolve();
     }
     if (agent.hasUrl()) {

benchmark-overhead/src/test/java/io/opentelemetry/config/Configs.java

@@ -15,7 +15,8 @@ public enum Configs {
       TestConfig.builder()
           .name("release")
           .description("compares no agent, latest stable, and latest snapshot agents")
-          .withAgents(Agent.NONE, Agent.LATEST_RELEASE, Agent.LATEST_SNAPSHOT)
+          .withAgents(
+              Agent.NONE, Agent.LATEST_RELEASE, Agent.LATEST_SNAPSHOT, Agent.LATEST_SNAPSHOT_INDY)
           .warmupSeconds(60)
           .build());