<p></p>
<p><b>@kfessel</b> commented on this pull request.</p>

<hr>

<p>In <a href="https://github.com/RIOT-OS/RIOT/pull/16126#discussion_r610514094">sys/sched_round_robin/sched_round_robin.c</a>:</p>
<pre style='color:#555'>> @@ -82,7 +82,7 @@ void sched_runq_callback(uint8_t prio)
     }
 
     if (_current_rr_priority == prio) {
-        if (sched_runqueue_len2(prio) == 0) {
+        if (sched_runqueue_is_empty(prio)) {
</pre>
<p>i stop the investiogation now, this commit will be gone anyway, somehow this specific commit is not good while the ones befor and after are different they are the same size and i think they will yield the same performance</p>

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