From d5246a79aa6b868714cfb517081230ec9be89fe2 Mon Sep 17 00:00:00 2001
From: John Sully <john@csquare.ca>
Date: Fri, 25 Jun 2021 06:11:01 +0000
Subject: [PATCH] OPTIMIZATION: Only notify the condition variable when needed

Former-commit-id: 11f07b49c613f54cef682da1e3c8fc54918809b0
---
 src/server.cpp | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/server.cpp b/src/server.cpp
index b51634364..e7a1e1aaf 100644
--- a/src/server.cpp
+++ b/src/server.cpp
@@ -6996,9 +6996,10 @@ void OnTerminate()
 void wakeTimeThread() {
     updateCachedTime();
     std::lock_guard<std::mutex> lock(time_thread_mutex);
+    if (sleeping_threads >= cserver.cthreads)
+        time_thread_cv.notify_one();
     sleeping_threads--;
     serverAssert(sleeping_threads >= 0);
-    time_thread_cv.notify_one();
 }
 
 void *timeThreadMain(void*) {