diff --git a/main_benchmark.cpp b/main_benchmark.cpp
index e45343d..75b72ba 100644
--- a/main_benchmark.cpp
+++ b/main_benchmark.cpp
@@ -1,49 +1,51 @@
 /* -------------------------------------------------------------------------- */
 #include <aka_iterators.hh>
 /* -------------------------------------------------------------------------- */
 #include <algorithm>
 #include <benchmark/benchmark.h>
 #include <vector>
 /* -------------------------------------------------------------------------- */
 
 using namespace akantu;
 
-using stream_type = int;
-
 class MyFixture : public benchmark::Fixture {
+  using stream_type = int;
 public:
   void SetUp(const ::benchmark::State &state) {
-    A.resize(state.range(0) / sizeof(stream_type));
-    B.resize(state.range(0) / sizeof(stream_type));
+    auto && size = state.range(0) * 1024 / sizeof(stream_type);
+    A.resize(size);
+    B.resize(size);
 
     auto view = enumerate(A, B);
     std::for_each(view.begin(), view.end(), [](auto &&data) {
       std::get<1>(data) = 2. * std::get<0>(data);
       std::get<2>(data) = 0.;
     });
   }
   void TearDown(const ::benchmark::State & /*state*/) {}
 
   std::vector<stream_type> A;
   std::vector<stream_type> B;
 };
 
 BENCHMARK_DEFINE_F(MyFixture, CopyZip)(benchmark::State &st) {
   auto view = zip(A, B);
   std::for_each(view.begin(), view.end(),
                 [](auto &&data) { std::get<1>(data) = std::get<0>(data); });
 
   for (auto _ : st) {
     benchmark::DoNotOptimize(
         std::for_each(view.begin(), view.end(), [](auto &&data) {
           std::get<1>(data) = std::get<0>(data);
         }));
   }
-  st.SetBytesProcessed(int64_t(st.iterations()) * int64_t(st.range(0)));
+  st.counters["size_kb"] =
+      A.size() * sizeof(typename decltype(A)::value_type) / 1024;
+  st.SetBytesProcessed(int64_t(st.iterations()) * A.size() * sizeof(typename decltype(A)::value_type));
 }
 
 BENCHMARK_REGISTER_F(MyFixture, CopyZip)
     ->RangeMultiplier(2)
-    ->Range(1 << 10, 1 << 26);
+    ->Range(2, 1 << 16);
 
 BENCHMARK_MAIN();