lucasbru commented on code in PR #18293:
URL: https://github.com/apache/kafka/pull/18293#discussion_r2197166329


##########
jmh-benchmarks/src/main/java/org/apache/kafka/jmh/acl/AuthorizerBenchmark.java:
##########
@@ -89,13 +90,19 @@ public class AuthorizerBenchmark {
     private List<Action> actions = new ArrayList<>();
     private RequestContext authorizeContext;
     private RequestContext authorizeByResourceTypeContext;
+    private AclBindingFilter filter;
+    private AclOperation op;
+    private ResourceType resourceType;
 
     Random rand = new Random(System.currentTimeMillis());
     double eps = 1e-9;
 
     @Setup(Level.Trial)
     public void setup() throws Exception {
         authorizer = new StandardAuthorizer();
+        filter = AclBindingFilter.ANY;
+        op = AclOperation.READ;
+        resourceType = ResourceType.TOPIC;

Review Comment:
   Why make them global?



##########
jmh-benchmarks/src/main/java/org/apache/kafka/jmh/acl/AuthorizerBenchmark.java:
##########
@@ -204,17 +211,17 @@ public void tearDown() throws IOException {
     }
 
     @Benchmark
-    public void testAclsIterator() {
-        authorizer.acls(AclBindingFilter.ANY);
+    public Iterable<AclBinding> testAclsIterator() {
+        return authorizer.acls(filter);
     }
 
     @Benchmark
-    public void testAuthorizer() {
-        authorizer.authorize(authorizeContext, actions);
+    public List<AuthorizationResult> testAuthorizer() {
+        return authorizer.authorize(authorizeContext, actions);
     }
 
     @Benchmark
-    public void testAuthorizeByResourceType() {
-        authorizer.authorizeByResourceType(authorizeByResourceTypeContext, 
AclOperation.READ, ResourceType.TOPIC);
+    public AuthorizationResult testAuthorizeByResourceType() {
+        return 
authorizer.authorizeByResourceType(authorizeByResourceTypeContext, op, 
resourceType);

Review Comment:
   alternatively, we could use a blackhole. Won't this show up as a warning 
"unused parameter" in INtelliJ?



##########
jmh-benchmarks/src/main/java/org/apache/kafka/jmh/acl/StandardAuthorizerUpdateBenchmark.java:
##########
@@ -55,8 +55,8 @@
 
 @State(Scope.Benchmark)
 @Fork(value = 1)
-@Warmup(iterations = 0)
-@Measurement(iterations = 4)
+@Warmup(iterations = 7, timeUnit = TimeUnit.SECONDS, time = 2)

Review Comment:
   why are we changin this?



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