From 6f6acd2e85708b9ac538ddc66a50f2de694639c1 Mon Sep 17 00:00:00 2001
From: Bomin Zhang <bmzhang@taosdata.com>
Date: Mon, 1 Jun 2020 12:50:47 +0800
Subject: [PATCH] add log to trace timer wheel processing

---
 src/util/src/ttimer.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/src/util/src/ttimer.c b/src/util/src/ttimer.c
index 68db574d82..55e7da3258 100644
--- a/src/util/src/ttimer.c
+++ b/src/util/src/ttimer.c
@@ -342,6 +342,7 @@ static void taosTimerLoopFunc(int signo) {
   int64_t now = taosGetTimestampMs();
 
   for (int i = 0; i < tListLen(wheels); i++) {
+    tmrTrace("begin processing wheel %d", i);
     // `expried` is a temporary expire list.
     // expired timers are first add to this list, then move
     // to expired queue as a batch to improve performance.
@@ -389,6 +390,7 @@ static void taosTimerLoopFunc(int signo) {
     }
 
     addToExpired(expired);
+    tmrTrace("end processing wheel %d", i);
   }
 }
 
-- 
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