diff --git a/java/com/google/gerrit/entities/SubscribeSection.java b/java/com/google/gerrit/entities/SubscribeSection.java
index b95517c..574cae8 100644
--- a/java/com/google/gerrit/entities/SubscribeSection.java
+++ b/java/com/google/gerrit/entities/SubscribeSection.java
@@ -99,9 +99,10 @@
   public ImmutableSet<BranchNameKey> getDestinationBranches(
       BranchNameKey src, Collection<Ref> allRefsInRefsHeads) {
     Set<BranchNameKey> ret = new HashSet<>();
-    logger.atFine().log("Inspecting SubscribeSection %s", this);
-    for (RefSpec r : matchingRefSpecs()) {
-      logger.atFine().log("Inspecting [matching] ref %s", r);
+
+    ImmutableList<RefSpec> matching = matchingRefSpecs();
+    ImmutableList<RefSpec> multiMatch = multiMatchRefSpecs();
+    for (RefSpec r : matching) {
       if (!r.matchSource(src.branch())) {
         continue;
       }
@@ -118,8 +119,7 @@
       }
     }
 
-    for (RefSpec r : multiMatchRefSpecs()) {
-      logger.atFine().log("Inspecting [all] ref %s", r);
+    for (RefSpec r : multiMatch) {
       if (!r.matchSource(src.branch())) {
         continue;
       }
@@ -133,7 +133,9 @@
         }
       }
     }
-    logger.atFine().log("Returning possible branches: %s for project %s", ret, project());
+    logger.atFine().log(
+        "getDestinationBranches(%s): %s. matching refs: %s, multimatch refs: %s",
+        this, ret, matching, multiMatch);
     return ImmutableSet.copyOf(ret);
   }
 
diff --git a/java/com/google/gerrit/server/submit/SubscriptionGraph.java b/java/com/google/gerrit/server/submit/SubscriptionGraph.java
index ad16cb0..26c8ac9 100644
--- a/java/com/google/gerrit/server/submit/SubscriptionGraph.java
+++ b/java/com/google/gerrit/server/submit/SubscriptionGraph.java
@@ -231,7 +231,6 @@
         Map<BranchNameKey, GitModules> branchGitModules,
         MergeOpRepoManager orm)
         throws SubmoduleConflictException {
-      logger.atFine().log("Calculating superprojects - submodules map");
       LinkedHashSet<BranchNameKey> allVisited = new LinkedHashSet<>();
       for (BranchNameKey updatedBranch : updatedBranches) {
         if (allVisited.contains(updatedBranch)) {
@@ -332,7 +331,6 @@
         Map<BranchNameKey, GitModules> branchGitModules,
         MergeOpRepoManager orm)
         throws IOException {
-      logger.atFine().log("Calculating possible superprojects for %s", srcBranch);
       Collection<SubmoduleSubscription> ret = new ArrayList<>();
       Project.NameKey srcProject = srcBranch.project();
       for (SubscribeSection s :
@@ -340,7 +338,6 @@
               .get(srcProject)
               .orElseThrow(illegalState(srcProject))
               .getSubscribeSections(srcBranch)) {
-        logger.atFine().log("Checking subscribe section %s", s);
         Collection<BranchNameKey> branches = getDestinationBranches(srcBranch, s, orm);
         for (BranchNameKey targetBranch : branches) {
           Project.NameKey targetProject = targetBranch.project();
@@ -348,11 +345,11 @@
             OpenRepo or = orm.getRepo(targetProject);
             ObjectId id = or.repo.resolve(targetBranch.branch());
             if (id == null) {
-              logger.atFine().log("The branch %s doesn't exist.", targetBranch);
+              logger.atFine().log("SubscribeSection %s: branch %s doesn't exist.", s, targetBranch);
               continue;
             }
           } catch (NoSuchProjectException e) {
-            logger.atFine().log("The project %s doesn't exist", targetProject);
+            logger.atFine().log("SubscribeSection %s: project %s doesn't exist", s, targetProject);
             continue;
           }