Merge pull request #317 from martinsumner/mas-i1765-reducelog

Reduce logging

src/leveled_log.erl

@@ -200,7 +200,7 @@
     {"PC008",
         {info, "Merge from level ~w to merge into ~w files below"}},
     {"PC009",
-        {info, "File ~s to simply switch levels to level ~w"}},
+        {debug, "File ~s to simply switch levels to level ~w"}},
     {"PC010",
         {info, "Merge to be commenced for FileToMerge=~s with MSN=~w"}},
     {"PC011",
@@ -216,7 +216,7 @@
         {info, "Slow fetch from SFT ~w of ~w us at level ~w "
                     ++ "with result ~w"}},
     {"PC017",
-        {info, "Notified clerk of manifest change"}},
+        {debug, "Notified clerk of manifest change"}},
     {"PC018",
         {info, "Saved manifest file"}},
     {"PC019",
@@ -224,9 +224,9 @@
     {"PC020",
         {warn, "Empty prompt deletions at ManifestSQN=~w"}},
     {"PC021",
-        {info, "Prompting deletions at ManifestSQN=~w"}},
+        {debug, "Prompting deletions at ManifestSQN=~w"}},
     {"PC022",
-        {info, "Storing reference to deletions at ManifestSQN=~w"}},
+        {debug, "Storing reference to deletions at ManifestSQN=~w"}},
     {"PC023",
         {info, "At level=~w file_count=~w avg_mem=~w " 
                 ++ "file with most memory fn=~s p=~w mem=~w"}},

src/leveled_penciller.erl

@@ -1316,7 +1316,12 @@ update_levelzero(L0Size, {PushedTree, PushedIdx, MinSQN, MaxSQN},
             Due = CacheTooBig and JitterCheck,
             {UpdState0, _L0Bloom} = maybe_roll_memory(UpdState, Due, false),
             LogSubs = [NewL0Size, Due, State#state.work_ongoing],
-            leveled_log:log_timer("P0031", LogSubs, SW),
+            case Due of
+                true ->
+                    leveled_log:log_timer("P0031", LogSubs, SW);
+                _ ->
+                    ok
+            end,
             UpdState0
     end.