Reuse redraws to decrease cpu load

can/can.go

@@ -36,6 +36,7 @@ const CAN_ID_06C = 0x06C
 const CAN_ID_061 = 0x061
 const CAN_ID_062 = 0x062
 const CAN_ID_065 = 0x065
+const bufferSize = 100
 
 type CanFrame struct {
 	CanId   uint32
@@ -159,7 +160,7 @@ func StartCan(canbus string) (<-chan *CanFrame, error) {
 
 		if cerr := socket.Bind(canbus, filter); cerr == nil {
 
-			canevents := make(chan *CanFrame)
+			canevents := make(chan *CanFrame, bufferSize)
 
 			go func() {
 				defer close(canevents)

cli-mon.go

@@ -52,7 +52,7 @@ func main() {
 
 	display.Start()
 
-	updates := make(chan *yabl.Event)
+	updates := make(chan *yabl.Event, 1000)
 
 	var f func()
 	f = func() {