tici: give loggerd rt priority (#21503)

* give loggerd rt priority

* assert

* little more

Co-authored-by: Comma Device <device@comma.ai>
old-commit-hash: 7e2752c878a9e8c38639e4caa234bcabb979db2e

selfdrive/debug/check_timings.py

@@ -12,13 +12,12 @@ ts = defaultdict(lambda: deque(maxlen=100))
 
 if __name__ == "__main__":
   while True:
+    time.sleep(1)
     print()
     for s, sock in socks.items():
       msgs = messaging.drain_sock(sock)
       for m in msgs:
         ts[s].append(m.logMonoTime / 1e6)
 
-      if len(ts[s]) == ts[s].maxlen:
-        d = np.diff(ts[s])
-        print(f"{s:17} {np.mean(d):.2f} {np.std(d):.2f} {np.max(d):.2f} {np.min(d):.2f}")
-    time.sleep(1)
+      d = np.diff(ts[s])
+      print(f"{s:17} {np.mean(d):.2f} {np.std(d):.2f} {np.max(d):.2f} {np.min(d):.2f}")