From cebc1b7e487394dd48135cbc363afc94d08513fc Mon Sep 17 00:00:00 2001
From: John Sully <john@csquare.ca>
Date: Wed, 3 Jun 2020 22:06:05 -0400
Subject: [PATCH] Add DB commit latency samples

Former-commit-id: 557ea8d285045496105e3330f0007e02aa4359d7
---
 src/server.cpp | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/src/server.cpp b/src/server.cpp
index 63e7979be..8122b0da0 100644
--- a/src/server.cpp
+++ b/src/server.cpp
@@ -2403,9 +2403,13 @@ void beforeSleep(struct aeEventLoop *eventLoop) {
 
     int aof_state = g_pserver->aof_state;
     aeReleaseLock();
+
+    mstime_t commit_latency;
+    latencyStartMonitor(commit_latency);
     for (redisDb *db : vecdb)
         db->commitChanges();
-    
+    latencyEndMonitor(commit_latency);
+    latencyAddSampleIfNeeded("storage-commit", commit_latency);
     
     handleClientsWithPendingWrites(iel, aof_state);
     if (serverTL->gcEpoch != 0)