ethstats: report processing time

core/blockchain.go

@@ -1778,7 +1778,7 @@ func (bc *BlockChain) insertChain(chain types.Blocks, setHead bool, makeWitness
 	// Fire a single chain head event if we've progressed the chain
 	defer func() {
 		if lastCanon != nil && bc.CurrentBlock().Hash() == lastCanon.Hash() {
-			bc.chainHeadFeed.Send(ChainHeadEvent{Header: lastCanon.Header()})
+			bc.chainHeadFeed.Send(ChainHeadEvent{Header: lastCanon.Header(), Time: uint64(mclock.Now().Sub(stats.startTime))})
 		}
 	}()
 	// Start the parallel header verifier

core/events.go

@@ -34,4 +34,5 @@ type ChainEvent struct {
 
 type ChainHeadEvent struct {
 	Header *types.Header
+	Time   uint64
 }

ethstats/ethstats.go

@@ -218,7 +218,7 @@ func (s *Service) loop(chainHeadCh chan core.ChainHeadEvent, txEventCh chan core
 	// Start a goroutine that exhausts the subscriptions to avoid events piling up
 	var (
 		quitCh = make(chan struct{})
-		headCh = make(chan *types.Header, 1)
+		headCh = make(chan core.ChainHeadEvent, 1)
 		txCh   = make(chan struct{}, 1)
 	)
 	go func() {
@@ -230,7 +230,7 @@ func (s *Service) loop(chainHeadCh chan core.ChainHeadEvent, txEventCh chan core
 			// Notify of chain head events, but drop if too frequent
 			case head := <-chainHeadCh:
 				select {
-				case headCh <- head.Header:
+				case headCh <- head:
 				default:
 				}
 
@@ -330,7 +330,7 @@ func (s *Service) loop(chainHeadCh chan core.ChainHeadEvent, txEventCh chan core
 						log.Warn("Requested history report failed", "err", err)
 					}
 				case head := <-headCh:
-					if err = s.reportBlock(conn, head); err != nil {
+					if err = s.reportBlock(conn, &head); err != nil {
 						log.Warn("Block stats report failed", "err", err)
 					}
 					if err = s.reportPending(conn); err != nil {
@@ -582,6 +582,7 @@ type blockStats struct {
 	TxHash         common.Hash    `json:"transactionsRoot"`
 	Root           common.Hash    `json:"stateRoot"`
 	Uncles         uncleStats     `json:"uncles"`
+	ProcessingTime uint64         `json:"processingTime"`
 }
 
 // txStats is the information to report about individual transactions.
@@ -601,9 +602,9 @@ func (s uncleStats) MarshalJSON() ([]byte, error) {
 }
 
 // reportBlock retrieves the current chain head and reports it to the stats server.
-func (s *Service) reportBlock(conn *connWrapper, header *types.Header) error {
+func (s *Service) reportBlock(conn *connWrapper, header *core.ChainHeadEvent) error {
 	// Gather the block details from the header or block chain
-	details := s.assembleBlockStats(header)
+	details := s.assembleBlockStats(header.Header, header.Time)
 
 	// Short circuit if the block detail is not available.
 	if details == nil {
@@ -624,7 +625,7 @@ func (s *Service) reportBlock(conn *connWrapper, header *types.Header) error {
 
 // assembleBlockStats retrieves any required metadata to report a single block
 // and assembles the block stats. If block is nil, the current head is processed.
-func (s *Service) assembleBlockStats(header *types.Header) *blockStats {
+func (s *Service) assembleBlockStats(header *types.Header, time uint64) *blockStats {
 	// Gather the block infos from the local blockchain
 	var (
 		txs    []txStats
@@ -671,6 +672,7 @@ func (s *Service) assembleBlockStats(header *types.Header) *blockStats {
 		TxHash:         header.TxHash,
 		Root:           header.Root,
 		Uncles:         uncles,
+		ProcessingTime: time,
 	}
 }
 
@@ -699,7 +701,7 @@ func (s *Service) reportHistory(conn *connWrapper, list []uint64) error {
 		// Retrieve the next block if it's known to us
 		header, _ := s.backend.HeaderByNumber(context.Background(), rpc.BlockNumber(number))
 		if header != nil {
-			history[len(history)-1-i] = s.assembleBlockStats(header)
+			history[len(history)-1-i] = s.assembleBlockStats(header, 0)
 			continue
 		}
 		// Ran out of blocks, cut the report short and send