From 2242bb93763bcd9c32b98db9e99b22529f946b89 Mon Sep 17 00:00:00 2001
From: Shawn <506895667@qq.com>
Date: Tue, 9 Nov 2021 08:30:57 +0800
Subject: [PATCH] fix(rule): force max speed to 2 decimal digits of precision

---
 apps/emqx_rule_engine/src/emqx_rule_metrics.erl | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/apps/emqx_rule_engine/src/emqx_rule_metrics.erl b/apps/emqx_rule_engine/src/emqx_rule_metrics.erl
index bc2b04c07..c88533f6f 100644
--- a/apps/emqx_rule_engine/src/emqx_rule_metrics.erl
+++ b/apps/emqx_rule_engine/src/emqx_rule_metrics.erl
@@ -410,7 +410,7 @@ calculate_speed(CurrVal, #rule_speed{max = MaxSpeed0, last_v = LastVal,
                 last5m_smpl = Last5MinSamples, tick = Tick + 1}.
 
 format_rule_speed(#rule_speed{max = Max, current = Current, last5m = Last5Min}) ->
-    #{max => Max, current => precision(Current, 2), last5m => precision(Last5Min, 2)}.
+    #{max => precision(Max, 2), current => precision(Current, 2), last5m => precision(Last5Min, 2)}.
 
 precision(Float, N) ->
     Base = math:pow(10, N),