From: bones_was_here <bones_was_here@xonotic.au>
Date: Tue, 19 Sep 2023 04:37:30 +0000 (+1000)
Subject: Fix occasional NaN sdev in server timing reports
X-Git-Url: https://git.rm.cloudns.org/?a=commitdiff_plain;h=d72036a01474e96e5de4dcab8756b052ae9e834e;p=xonotic%2Fdarkplaces.git

Fix occasional NaN sdev in server timing reports

Signed-off-by: bones_was_here <bones_was_here@xonotic.au>
---

diff --git a/sv_main.c b/sv_main.c
index 15ac48d6..c4168d2e 100644
--- a/sv_main.c
+++ b/sv_main.c
@@ -2561,7 +2561,8 @@ double SV_Frame(double time)
 			{
 				sv.perf_offset_max = sv.perf_acc_offset_max;
 				sv.perf_offset_avg = sv.perf_acc_offset / sv.perf_acc_offset_samples;
-				sv.perf_offset_sdev = sqrt(sv.perf_acc_offset_squared / sv.perf_acc_offset_samples - sv.perf_offset_avg * sv.perf_offset_avg);
+				sv.perf_offset_sdev = sv.perf_acc_offset_squared / sv.perf_acc_offset_samples - sv.perf_offset_avg * sv.perf_offset_avg;
+				sv.perf_offset_sdev = sv.perf_offset_sdev > 0 ? sqrt(sv.perf_offset_sdev) : 0;
 			}
 
 			if (sv.perf_lost > 0 && reporting)