log the post rates instead of the absolute sums

src/Hash2Pub/PostService.hs

@@ -44,6 +44,7 @@ import           Hash2Pub.PostService.API
 import           Hash2Pub.RingMap
 import           Hash2Pub.Utils
 
+import           Debug.Trace
 
 data PostService d = PostService
     { serviceConf          :: ServiceConf
@@ -727,6 +728,7 @@ data StatsEventType = PostPublishEvent
 
 -- | Represents measurement event of a 'StatsEventType' with a count relevant for a certain key
 data StatsEvent = StatsEvent StatsEventType Int NodeID
+    deriving (Show, Eq)
 
 
 -- | measured rates of relay performance
@@ -741,6 +743,7 @@ data RelayStats = RelayStats
     , postPublishRate    :: Double
     -- ^ rate of initially publishing posts through this instance
     }
+    deriving (Show, Eq)
 
 
 
@@ -804,7 +807,8 @@ evaluateStatsThread serv statsAcc = getPOSIXTime >>= loop
           -- evaluate stats rate and replace server stats
           -- persistently store in a TVar so it can be retrieved later by the DHT
           let timePassed = (now - previousTs) * fromIntegral (confSpeedupFactor $ serviceConf serv)
-          atomically . writeTVar (loadStats serv) . evaluateStats timePassed $ summedStats
+          let rateStats = evaluateStats timePassed summedStats
+          atomically $ writeTVar (loadStats serv) rateStats
           -- and now what? write a log to file
           -- format: total relayReceiveRates;total relayDeliveryRates;postFetchRate;postPublishRate
           -- later: current (reported) load, target load
@@ -814,7 +818,7 @@ evaluateStatsThread serv statsAcc = getPOSIXTime >>= loop
               , show . sum . relayDeliveryRates
               , show . postPublishRate
               , show . postFetchRate
-              ] <*> pure summedStats)) <> "\n"
+              ] <*> pure rateStats)) <> "\n"
           loop now
 
 
@@ -831,7 +835,7 @@ evaluateStats timeInterval summedStats =
     , postFetchRate = postFetchRate summedStats / intervalSeconds
     }
   where
-      intervalSeconds = fromIntegral (fromEnum timeInterval) / 10^12
+      intervalSeconds = realToFrac timeInterval
 
 
 emptyStats :: RelayStats