core/state/pruner: track number of skipped items during state pruning (#28368)

core/state/pruner/pruner.go

@@ -125,7 +125,7 @@ func prune(snaptree *snapshot.Tree, root common.Hash, maindb ethdb.Database, sta
 	// dangling node is the state root is super low. So the dangling nodes in
 	// theory will never ever be visited again.
 	var (
-		count  int
+		skipped, count int
 		size           common.StorageSize
 		pstart         = time.Now()
 		logged         = time.Now()
@@ -149,6 +149,7 @@ func prune(snaptree *snapshot.Tree, root common.Hash, maindb ethdb.Database, sta
 				log.Debug("Forcibly delete the middle state roots", "hash", common.BytesToHash(checkKey))
 			} else {
 				if stateBloom.Contain(checkKey) {
+					skipped += 1
 					continue
 				}
 			}
@@ -165,7 +166,7 @@ func prune(snaptree *snapshot.Tree, root common.Hash, maindb ethdb.Database, sta
 				eta = time.Duration(left/speed) * time.Millisecond
 			}
 			if time.Since(logged) > 8*time.Second {
-				log.Info("Pruning state data", "nodes", count, "size", size,
+				log.Info("Pruning state data", "nodes", count, "skipped", skipped, "size", size,
 					"elapsed", common.PrettyDuration(time.Since(pstart)), "eta", common.PrettyDuration(eta))
 				logged = time.Now()
 			}