stopwatch<boost::chrono::high_resolution_clock> w;
+#ifndef CI_SUPPRESS_KNOWN_ISSUES
while(boost::chrono::duration_cast<boost::chrono::duration<double> >(w.elapsed()).count() < 200)
+#else
+ while(boost::chrono::duration_cast<boost::chrono::duration<double> >(w.elapsed()).count() < 50)
+#endif
{
T val = generate_random<T>();
do_round_trip(val);