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-rw-r--r--lib/tools/src/lcnt.erl48
1 files changed, 36 insertions, 12 deletions
diff --git a/lib/tools/src/lcnt.erl b/lib/tools/src/lcnt.erl
index 8036134dcd..f89b0ccf29 100644
--- a/lib/tools/src/lcnt.erl
+++ b/lib/tools/src/lcnt.erl
@@ -96,9 +96,9 @@
line :: non_neg_integer(),
tries :: non_neg_integer(),
colls :: non_neg_integer(),
- hist :: tuple(), % histogram
time :: non_neg_integer(), % us
- nt :: non_neg_integer() % #timings collected
+ nt :: non_neg_integer(), % #timings collected
+ hist :: tuple() % histogram
}).
-record(lock, {
@@ -118,6 +118,7 @@
cr, % collision ratio
time,
dtr, % time duration ratio
+ %% new
hist % log2 histogram of lock wait_time
}).
@@ -718,22 +719,45 @@ state2list(State) ->
(X, Y) -> {X,Y}
end, record_info(fields, state), Values).
-list2state(List) -> list2state(record_info(fields, state), List, [state]).
-list2state([], _, Out) -> list_to_tuple(lists:reverse(Out));
-list2state([locks|Fs], List, Out) ->
- Locks = [ list2lock(Lock) || Lock <- proplists:get_value(locks, List, [])],
- list2state(Fs, List, [Locks|Out]);
-list2state([F|Fs], List, Out) -> list2state(Fs, List, [proplists:get_value(F, List, state_default(F))|Out]).
-
lock_default(Field) -> proplists:get_value(Field, lock2list(#lock{})).
lock2list(Lock) ->
[_|Values] = tuple_to_list(Lock),
lists:zip(record_info(fields, lock), Values).
-list2lock(List) -> list2lock(record_info(fields, lock), List, [lock]).
-list2lock([], _, Out) -> list_to_tuple(lists:reverse(Out));
-list2lock([F|Fs], List, Out) -> list2lock(Fs, List, [proplists:get_value(F, List, lock_default(F))|Out]).
+
+list2state(List) ->
+ list_to_tuple([state|list2state(record_info(fields, state), List)]).
+list2state([], _) -> [];
+list2state([locks|Fs], List) ->
+ Locks = [list2lock(Lock) || Lock <- proplists:get_value(locks, List, [])],
+ [Locks|list2state(Fs,List)];
+list2state([F|Fs], List) ->
+ [proplists:get_value(F, List, state_default(F))|list2state(Fs, List)].
+
+list2lock(Ls) ->
+ list_to_tuple([lock|list2lock(record_info(fields, lock), Ls)]).
+
+list2lock([],_) -> [];
+list2lock([stats=F|Fs], Ls) ->
+ Stats = stats2stats(proplists:get_value(F, Ls, lock_default(F))),
+ [Stats|list2lock(Fs, Ls)];
+list2lock([F|Fs], Ls) ->
+ [proplists:get_value(F, Ls, lock_default(F))|list2lock(Fs, Ls)].
+
+%% process old stats (hack)
+%% old stats had no histograms
+%% in future versions stats should be serialized as a list, not a record
+
+stats2stats([]) -> [];
+stats2stats([Stat|Stats]) ->
+ Sz = tuple_size(#stats{}),
+ [stat2stat(Stat,Sz)|stats2stats(Stats)].
+
+stat2stat(Stat,Sz) when tuple_size(Stat) =:= Sz -> Stat;
+stat2stat(Stat,_) ->
+ %% assume no histogram at the end
+ list_to_tuple(tuple_to_list(Stat) ++ [{0}]).
%% printing