commit 0677a1d: [Minor] Reduce decay rate and slightly rework rounding

[Vsevolod Stakhov]

Author: Vsevolod Stakhov
Date: 2021-04-16 17:02:16 +0100
URL: https://github.com/rspamd/rspamd/commit/0677a1d3ab766ff38bfe367df61dab3a3e54e351 (HEAD -> master)

[Minor] Reduce decay rate and slightly rework rounding

---
 src/libserver/rspamd_symcache.c | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/src/libserver/rspamd_symcache.c b/src/libserver/rspamd_symcache.c
index 2d2eb142f..bd8a5bb91 100644
--- a/src/libserver/rspamd_symcache.c
+++ b/src/libserver/rspamd_symcache.c
@@ -2345,7 +2345,10 @@ struct counters_cbdata {
 	struct rspamd_symcache *cache;
 };
 
-#define ROUND_DOUBLE(x) (floor((x) * 100.0) / 100.0)
+/* Leave several digits */
+#define P10(X) (1e##X)
+#define ROUND_DOUBLE_DIGITS(x, dig) (floor((x) * P10(dig)) / P10(dig))
+#define ROUND_DOUBLE(x) ROUND_DOUBLE_DIGITS(x, 3)
 
 static void
 rspamd_symcache_counters_cb (gpointer k, gpointer v, gpointer ud)
@@ -2466,7 +2469,7 @@ rspamd_symcache_resort_cb (EV_P_ ev_timer *w, int revents)
 	struct rspamd_symcache_item *item;
 	guint i;
 	gdouble cur_ticks;
-	static const double decay_rate = 0.7;
+	static const double decay_rate = 0.25;
 
 	cache = cbdata->cache;
 	/* Plan new event */