From 7f12919feafd0b8394e984be6e9bc74251d9e482 Mon Sep 17 00:00:00 2001
From: Miroslav Lichvar <mlichvar@redhat.com>
Date: Wed, 20 Apr 2011 12:38:34 +0200
Subject: [PATCH] Increase smoothing factor in refclock variance

---
 refclock.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/refclock.c b/refclock.c
index 3c2c929..6fd3527 100644
--- a/refclock.c
+++ b/refclock.c
@@ -825,8 +825,8 @@ filter_get_sample(struct MedianFilter *filter, struct timeval *sample_time, doub
   prev_avg_var = filter->avg_var;
 
   /* update exponential moving average of the variance */
-  if (filter->avg_var_n > 100) {
-    filter->avg_var += dof / (dof + 100.0) * (var - filter->avg_var);
+  if (filter->avg_var_n > 50) {
+    filter->avg_var += dof / (dof + 50.0) * (var - filter->avg_var);
   } else {
     filter->avg_var = (filter->avg_var * filter->avg_var_n + var * dof) /
       (dof + filter->avg_var_n);