From 5a1951cac9188047119d5eb74dd8dc1ce221cdab Mon Sep 17 00:00:00 2001
From: Johannes Truschnigg <johannes@truschnigg.info>
Date: Sat, 19 Mar 2022 20:41:18 +0100
Subject: [PATCH] Make bw collapse to lowest step in low-latency mode

---
 __lagdetect.awk | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/__lagdetect.awk b/__lagdetect.awk
index 2ab8ebf..1f64406 100644
--- a/__lagdetect.awk
+++ b/__lagdetect.awk
@@ -245,6 +245,11 @@ function adjust_sqm(peername, latency) {
   thresh_fudged = (FUDGE + (ping_avgs[peername] * THRESHOLD))
   if (last2avg > thresh_fudged) {
     if (latency > ping_prev[peername] && latency > ping_pprev[peername]) {
+      if (prefer_high_bw == 0) {
+          bw_step_rx_next = 0
+          print "--- " ts " low-latency mode enforces step " bw_step_rx_next " := " STEPS_RX[bw_step_rx_next] "Kbps rx=" rx_rate " tx=" tx_rate
+	  return
+      }
       if (rx_rate < (rx_rate_max * 0.1)) { # XXX TODO is this correct?
         print "# " ts " line does not appear to be loaded, skipping futile SQM bw downgrade"
       } else {
-- 
2.39.5