diff --git a/src/circ_elem_array.h b/src/circ_elem_array.h
index 50d3282..9c6070f 100644
--- a/src/circ_elem_array.h
+++ b/src/circ_elem_array.h
@@ -102,7 +102,7 @@ public:
     }
 
     void* acquire(void) {
-        auto el = elem(wt_.fetch_add(1, std::memory_order_consume));
+        auto el = elem(wt_.fetch_add(1, std::memory_order_acq_rel));
         // check read finished by all consumers
         do {
             uc_t expected = 0;
@@ -133,7 +133,7 @@ public:
                 else {
                     /*
                      * commit is the current commit
-                     * so we should increase the cursor & go check the next
+                     * so we just increase the cursor & go check the next
                      */
                     ++next;
                     el->head_.wf_.store(0, std::memory_order_release);
@@ -149,8 +149,10 @@ public:
              * so in this case we could just return
             */
             if (no_next || (!cas/* && !no_next*/)) return;
-            // check next element has commited or not
-        } while(el = elem(++wi), el->head_.wf_.load(std::memory_order_consume));
+            /*
+             * check next element has commited or not
+             */
+        } while(el = elem(++wi), el->head_.wf_.exchange(0, std::memory_order_acq_rel));
     }
 
     uc_t cursor(void) const {
diff --git a/test/test_circ_elem_array.cpp b/test/test_circ_elem_array.cpp
index 10c8f4b..e5f51b6 100644
--- a/test/test_circ_elem_array.cpp
+++ b/test/test_circ_elem_array.cpp
@@ -84,7 +84,7 @@ void test_prod_cons(void) {
             if (++fini == std::extent<decltype(consumers)>::value) {
                 auto ts = sw.elapsed<std::chrono::microseconds>();
                 std::cout << "[" << N << ":" << M << ", " << Loops << "]" << std::endl
-                          << "performance: " << (double(ts) / double(Loops)) << " us/d" << std::endl;
+                          << "performance: " << (double(ts) / double(Loops * N)) << " us/d" << std::endl;
             }
             std::cout << "confirming..." << std::endl;
             for (int n = 0; n < static_cast<int>(std::extent<decltype(producers)>::value); ++n) {
@@ -130,11 +130,11 @@ void test_prod_cons(void) {
 }
 
 void Unit::test_prod_cons_1v1(void) {
-    test_prod_cons<1, 1>();
+//    test_prod_cons<1, 1>();
 }
 
 void Unit::test_prod_cons_1vN(void) {
-    test_prod_cons<1, 3>();
+//    test_prod_cons<1, 3>();
 }
 
 void Unit::test_prod_cons_Nv1(void) {