diff --git a/benchmarks/benchmark.hpp b/benchmarks/benchmark.hpp
index 62cb48f..3afc34e 100644
--- a/benchmarks/benchmark.hpp
+++ b/benchmarks/benchmark.hpp
@@ -143,7 +143,8 @@ void* thread_function(void* argp) {
             ADD_TIMING_MESSUREMENT;
         }
 
-        args->rep_completed++;
+        // again: we do not count the first 5 repetitions
+        if (i >= 5) args->rep_completed++;
     }
 
     // free the allocated memory regions on the selected nodes
diff --git a/benchmarks/task-data.hpp b/benchmarks/task-data.hpp
index 38dce07..38be793 100644
--- a/benchmarks/task-data.hpp
+++ b/benchmarks/task-data.hpp
@@ -33,21 +33,6 @@ struct TaskData {
     barrier* barrier_;
 };
 
-struct ReadTaskData {
-    // thread placement / engine selection
-    uint8_t numa_node;
-    // region size and source+destination for move
-    std::vector<size_t> sizes;
-    uint8_t nnode_src;
-    uint8_t nnode_dst;
-    // repetition
-    uint32_t rep_count;
-    bool batch_submit;
-    uint32_t batch_size;
-
-    void AddToTaskVector(std::vector<TaskData>& v) const;
-};
-
 inline void to_json(nlohmann::json& j, const TaskData& a) {
     j["task"]["size"] = a.size;
     j["task"]["iterations"] = a.rep_count;
@@ -67,13 +52,8 @@ inline void to_json(nlohmann::json& j, const TaskData& a) {
     j["report"]["status"] = StatusCodeToString(a.status);
 }
 
-inline void from_json(const nlohmann::json& j, ReadTaskData& a) {
-    const uint32_t size_count = j["task"]["size_count"].template get<uint32_t>();
-    for (uint32_t i = 0; i < size_count; i++) {
-        a.sizes.emplace_back(j["task"]["size"][i].template get<uint32_t>());
-    }
-
-    j["task"]["iterations"].get_to(a.rep_count);
+inline void from_json(const nlohmann::json& j, TaskData& a) {
+    j["task"]["size"].get_to(a.size);
     j["task"]["batching"]["batch_submit"].get_to(a.batch_submit);
     j["task"]["batching"]["batch_size"].get_to(a.batch_size);
     j["affinity"]["node"].get_to(a.numa_node);
@@ -81,20 +61,6 @@ inline void from_json(const nlohmann::json& j, ReadTaskData& a) {
     j["affinity"]["nnode_dst"].get_to(a.nnode_dst);
 }
 
-inline void ReadTaskData::AddToTaskVector(std::vector<TaskData>& v) const {
-    for (const auto s : sizes) {
-        TaskData t;
-        t.size = s;
-        t.rep_count = rep_count;
-        t.batch_submit = batch_submit;
-        t.batch_size = batch_size;
-        t.numa_node = numa_node;
-        t.nnode_dst = nnode_dst;
-        t.nnode_src = nnode_src;
-        v.emplace_back(t);
-    }
-}
-
 inline void WriteResultLog(const std::vector<TaskData>& args, const std::string& path, std::ostream& os) {
     nlohmann::json json;
 
@@ -110,15 +76,10 @@ inline void ReadWorkDescription(std::vector<TaskData>& args, std::string& path,
     is >> json;
 
     const uint32_t count = json.at("count");
-    std::vector<ReadTaskData> rtd;
-    rtd.resize(count);
+    args.resize(count);
     path = json.at("path");
 
     for (uint32_t i = 0; i < count; i++) {
-        rtd[i] = json["list"][i].template get<ReadTaskData>();
-    }
-
-    for (const auto& e : rtd) {
-        e.AddToTaskVector(args);
+        args[i] = json["list"][i].template get<TaskData>();
     }
 }
\ No newline at end of file
diff --git a/benchmarks/task-description.json b/benchmarks/task-description.json
index fc648b4..3c8086c 100644
--- a/benchmarks/task-description.json
+++ b/benchmarks/task-description.json
@@ -1,11 +1,10 @@
 {
   "count": 1,
-  "path" : "hw",
+  "path" : "sw",
   "list": [
     {
       "task": {
-        "size_count": 5,
-        "size": [ 1024, 4096, 1048576, 134217728, 1073741824 ],
+        "size": 4096,
         "iterations": 1000,
         "batching": {
           "batch_submit": false,