diff --git a/src/measure/DsTestSimple/utSEtsOrdDs.erl b/src/measure/DsTestSimple/utSEtsOrdDs.erl
index 9938670..22073f6 100644
--- a/src/measure/DsTestSimple/utSEtsOrdDs.erl
+++ b/src/measure/DsTestSimple/utSEtsOrdDs.erl
@@ -20,7 +20,7 @@ start(Num, Pid) ->
    exit(normal).
 
 init(_Num) ->
-   ets:new(test, [ordered_set]).
+   ets:new(test, [ordered_set, public, named_table, {write_concurrency, true}]).
 
 insert(0, Ds) ->
    Ds;
diff --git a/src/measure/DsTestSimple/utSEtsSetDs.erl b/src/measure/DsTestSimple/utSEtsSetDs.erl
index 131b499..b80f574 100644
--- a/src/measure/DsTestSimple/utSEtsSetDs.erl
+++ b/src/measure/DsTestSimple/utSEtsSetDs.erl
@@ -20,7 +20,7 @@ start(Num, Pid) ->
    exit(normal).
 
 init(_Num) ->
-   ets:new(test, [set]).
+   ets:new(test, [set, public, named_table, {write_concurrency, true}]).
 
 insert(0, Ds) ->
    Ds;