From ae985686ed84882165df0fd38a815fe5922b0436 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=E5=88=98=E7=A5=A5=E8=B6=85?= <iwind.liu@gmail.com>
Date: Thu, 30 Nov 2023 17:24:38 +0800
Subject: [PATCH] Reduce concurrent collections

---
 store.go | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/store.go b/store.go
index 5dd1521..fdfa557 100644
--- a/store.go
+++ b/store.go
@@ -99,6 +99,9 @@ func (s *memoryStore) collect() {
 	now := time.Now()
 	s.Lock()
 	defer s.Unlock()
+	if s.numStored == 0 {
+		return
+	}
 	s.numStored = 0
 	for e := s.idByTime.Front(); e != nil; {
 		ev, ok := e.Value.(idByTimeValue)