traces prevote delays

consensus/state.go

@@ -1271,6 +1271,7 @@ func (cs *State) isReadyToPrevote() (bool, time.Duration) {
 	// Therefore, we've set the wait time to 7 seconds to account for some error margin.
 	prevoteVoteTime := cs.StartTime.Add(7 * time.Second)
 	waitTime := time.Until(prevoteVoteTime)
+	schema.WritePrevoteDelay(cs.traceClient, cs.Height, cs.Round, waitTime.Seconds())
 	return waitTime <= 0, waitTime
 }
 

pkg/trace/schema/consensus.go

@@ -16,6 +16,7 @@ func ConsensusTables() []string {
 		ConsensusStateTable,
 		ProposalTable,
 		PrecommitTimeTable,
+		PrevoteDelayTable,
 	}
 }
 
@@ -40,6 +41,27 @@ func WritePrecommitTime(client trace.Tracer, height int64, round int32, delay fl
 
 }
 
+const (
+	// PrevoteDelayTable
+	PrevoteDelayTable = "consensus_prevote_delay"
+)
+
+type PrevoteDelay struct {
+	Height int64 `json:"height"`
+	Round  int32 `json:"round"`
+	// amount of delay added before casting prevote for this Height and Round
+	Delay float64 `json:"delay"`
+}
+
+func (p PrevoteDelay) Table() string {
+	return PrevoteDelayTable
+}
+
+func WritePrevoteDelay(client trace.Tracer, height int64, round int32, delay float64) {
+	client.Write(PrevoteDelay{Height: height, Round: round, Delay: delay})
+
+}
+
 // Schema constants for the consensus round state tracing database.
 const (
 	// RoundStateTable is the name of the table that stores the consensus