don't track latency for messages that are not gossipped futher (#5064)

this is mainly to prevent duplicates from skewing results. 
hare1 is not fixed in this change
latency metering is dropped for atx protocol, as we don't have good reference for it

closes: #4623

activation/handler.go

@@ -15,7 +15,6 @@ import (
 	"github.com/spacemeshos/go-spacemesh/datastore"
 	"github.com/spacemeshos/go-spacemesh/events"
 	"github.com/spacemeshos/go-spacemesh/log"
-	"github.com/spacemeshos/go-spacemesh/metrics"
 	"github.com/spacemeshos/go-spacemesh/p2p"
 	"github.com/spacemeshos/go-spacemesh/p2p/pubsub"
 	"github.com/spacemeshos/go-spacemesh/signing"
@@ -509,11 +508,6 @@ func (h *Handler) handleAtx(ctx context.Context, expHash types.Hash32, peer p2p.
 		return fmt.Errorf("%w: %w", errMalformedData, err)
 	}
 
-	epochStart := h.clock.LayerToTime(atx.PublishEpoch.FirstLayer())
-	poetRoundEnd := epochStart.Add(h.poetCfg.PhaseShift - h.poetCfg.CycleGap)
-	latency := receivedTime.Sub(poetRoundEnd)
-	metrics.ReportMessageLatency(pubsub.AtxProtocol, pubsub.AtxProtocol, latency)
-
 	atx.SetReceived(receivedTime.Local())
 	if err := atx.Initialize(); err != nil {
 		return fmt.Errorf("failed to derive ID from atx: %w", err)

beacon/handlers.go

@@ -62,9 +62,6 @@ func (pd *ProtocolDriver) HandleProposal(ctx context.Context, peer p2p.Peer, msg
 		return errMalformedMessage
 	}
 
-	latency := receivedTime.Sub(pd.msgTimes.proposalSendTime(m.EpochID))
-	metrics.ReportMessageLatency(pubsub.BeaconProtocol, pubsub.BeaconProposalProtocol, latency)
-
 	if !pd.isProposalTimely(&m, receivedTime) {
 		logger.With().Debug("proposal too early", m.EpochID, log.Time("received_at", receivedTime))
 		return errUntimelyMessage
@@ -94,6 +91,7 @@ func (pd *ProtocolDriver) HandleProposal(ctx context.Context, peer p2p.Peer, msg
 		logger.With().Debug("malicious miner proposal potentially valid", log.Stringer("smesher", m.NodeID))
 		cat = potentiallyValid
 	}
+	metrics.ReportMessageLatency(pubsub.BeaconProtocol, pubsub.BeaconProposalProtocol, time.Since(pd.msgTimes.proposalSendTime(m.EpochID)))
 	return pd.addProposal(m, cat)
 }
 
@@ -223,17 +221,12 @@ func (pd *ProtocolDriver) HandleFirstVotes(ctx context.Context, peer p2p.Peer, m
 	logger := pd.logger.WithContext(ctx).WithFields(types.FirstRound, log.Stringer("sender", peer))
 	logger.Debug("new first votes")
 
-	receivedTime := time.Now()
-
 	var m FirstVotingMessage
 	if err := codec.Decode(msg, &m); err != nil {
 		logger.With().Warning("received invalid first votes", log.Err(err))
 		return errMalformedMessage
 	}
 
-	latency := receivedTime.Sub(pd.msgTimes.firstVoteSendTime(m.EpochID))
-	metrics.ReportMessageLatency(pubsub.BeaconProtocol, pubsub.BeaconFirstVotesProtocol, latency)
-
 	currentEpoch := pd.currentEpoch()
 	if m.EpochID != currentEpoch {
 		logger.With().Debug("first votes from different epoch",
@@ -257,6 +250,7 @@ func (pd *ProtocolDriver) HandleFirstVotes(ctx context.Context, peer p2p.Peer, m
 	}
 
 	logger.Debug("received first voting message, storing its votes")
+	metrics.ReportMessageLatency(pubsub.BeaconProtocol, pubsub.BeaconFirstVotesProtocol, time.Since(pd.msgTimes.firstVoteSendTime(m.EpochID)))
 	return pd.storeFirstVotes(m, minerPK)
 }
 
@@ -342,9 +336,6 @@ func (pd *ProtocolDriver) HandleFollowingVotes(ctx context.Context, peer p2p.Pee
 		return errEpochNotActive
 	}
 
-	latency := receivedTime.Sub(pd.msgTimes.followupVoteSendTime(m.EpochID, m.RoundID))
-	metrics.ReportMessageLatency(pubsub.BeaconProtocol, pubsub.BeaconFollowingVotesProtocol, latency)
-
 	// don't accept votes from future rounds
 	if !pd.isVoteTimely(&m, receivedTime) {
 		logger.With().Debug("following votes too early", m.RoundID, log.Time("received_at", receivedTime))
@@ -356,12 +347,12 @@ func (pd *ProtocolDriver) HandleFollowingVotes(ctx context.Context, peer p2p.Pee
 		return err
 	}
 
+	metrics.ReportMessageLatency(pubsub.BeaconProtocol, pubsub.BeaconFollowingVotesProtocol, time.Since(pd.msgTimes.followupVoteSendTime(m.EpochID, m.RoundID)))
 	logger.Debug("received following voting message, counting its votes")
 	if err = pd.storeFollowingVotes(m, nodeID); err != nil {
 		logger.With().Warning("failed to store following votes", log.Err(err))
 		return err
 	}
-
 	return nil
 }
 

beacon/weakcoin/handler.go

@@ -16,7 +16,6 @@ import (
 
 // HandleProposal defines method to handle Beacon Weak Coin Messages from gossip.
 func (wc *WeakCoin) HandleProposal(ctx context.Context, peer p2p.Peer, msg []byte) error {
-	receivedTime := time.Now()
 	logger := wc.logger.WithContext(ctx)
 
 	var message Message
@@ -25,9 +24,6 @@ func (wc *WeakCoin) HandleProposal(ctx context.Context, peer p2p.Peer, msg []byt
 		return pubsub.ErrValidationReject
 	}
 
-	latency := receivedTime.Sub(wc.msgTime.WeakCoinProposalSendTime(message.Epoch, message.Round))
-	metrics.ReportMessageLatency(pubsub.BeaconProtocol, pubsub.BeaconWeakCoinProtocol, latency)
-
 	if err := wc.receiveMessage(ctx, message); err != nil {
 		if !errors.Is(err, errNotSmallest) {
 			logger.With().Debug("invalid proposal",
@@ -39,6 +35,7 @@ func (wc *WeakCoin) HandleProposal(ctx context.Context, peer p2p.Peer, msg []byt
 		}
 		return err
 	}
+	metrics.ReportMessageLatency(pubsub.BeaconProtocol, pubsub.BeaconWeakCoinProtocol, time.Since(wc.msgTime.WeakCoinProposalSendTime(message.Epoch, message.Round)))
 	return nil
 }
 

proposals/handler.go

@@ -248,7 +248,6 @@ func (h *Handler) HandleProposal(ctx context.Context, peer p2p.Peer, data []byte
 
 // HandleProposal is the gossip receiver for Proposal.
 func (h *Handler) handleProposal(ctx context.Context, expHash types.Hash32, peer p2p.Peer, data []byte) error {
-	receivedTime := time.Now()
 	logger := h.logger.WithContext(ctx)
 
 	t0 := time.Now()
@@ -268,9 +267,6 @@ func (h *Handler) handleProposal(ctx context.Context, expHash types.Hash32, peer
 		return fmt.Errorf("proposal from future: %d/%s", p.Layer, p.ID().String())
 	}
 
-	latency := receivedTime.Sub(h.clock.LayerToTime(p.Layer))
-	metrics.ReportMessageLatency(pubsub.ProposalProtocol, pubsub.ProposalProtocol, latency)
-
 	if !h.edVerifier.Verify(signing.PROPOSAL, p.SmesherID, p.SignedBytes(), p.Signature) {
 		badSigProposal.Inc()
 		return fmt.Errorf("failed to verify proposal signature")
@@ -367,6 +363,7 @@ func (h *Handler) handleProposal(ctx context.Context, expHash types.Hash32, peer
 		}
 		return errMaliciousBallot
 	}
+	metrics.ReportMessageLatency(pubsub.ProposalProtocol, pubsub.ProposalProtocol, time.Since(h.clock.LayerToTime(p.Layer)))
 	return nil
 }