Active waiting instead of sleeping.

templates/normal/experiment.cpp

@@ -29,6 +29,13 @@ auto loop_count(int duration) -> long long
     return m * (float) duration + t;
 }
 
+auto active_wait(int duration) -> void
+{
+    for(int i = 0; i < loop_count(duration); i++) {
+        donotoptimize();
+    }
+}
+
 auto gcd(long long a, long long b) -> long long
 {
     return b == 0 ? a : gcd(b, a % b);
@@ -126,9 +133,7 @@ static void IdleTask(const void* args, mtapi_size_t, void*, mtapi_size_t,
     /* idle until task completion. */
     auto idle_time = taskset[task_id].wcet;
 
-    for(int i = 0; i < loop_count(idle_time); i++) {
-        donotoptimize();
-    }
+    active_wait(idle_time);
 
     /* Store our benchmarking data. */
     auto end_time = base_clock::now();
@@ -214,7 +219,7 @@ static void TaskStarter()
             }
         }
 
-        std::this_thread::sleep_for(min);
+        active_wait(min.count());
         cur_time = duration_cast<cpp_time_base>(base_clock::now() - start);
     }