From 6c4281915aa9b49460071d1fd3fe55e2771d34a3 Mon Sep 17 00:00:00 2001
From: Francis Dupont <fdupont@isc.org>
Date: Fri, 10 Jul 2020 22:04:08 +0200
Subject: [PATCH] [#1311] Reniced LFC

---
 ChangeLog           | 4 ++++
 src/bin/lfc/main.cc | 4 ++++
 2 files changed, 8 insertions(+)

diff --git a/ChangeLog b/ChangeLog
index 81e4533dc5..81b616f9ae 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,7 @@
+1770.	[perf]		fdupont
+	Set kea-lfc process priority to lower than default.
+	(Gitlab #1311)
+
 1771.	[func]		fdupont
 	Added a stats-recount command to kea-admin tool, which recounts
 	cached statistics in MySQL and PostgreSQL lease databases.
diff --git a/src/bin/lfc/main.cc b/src/bin/lfc/main.cc
index 30a423b09e..2e67e9b3b7 100644
--- a/src/bin/lfc/main.cc
+++ b/src/bin/lfc/main.cc
@@ -12,6 +12,7 @@
 #include <boost/exception/diagnostic_information.hpp>
 #include <boost/exception_ptr.hpp>
 #include <iostream>
+#include <sys/resource.h>
 
 using namespace std;
 using namespace isc::lfc;
@@ -23,6 +24,9 @@ using namespace isc::lfc;
 /// The exit value of the program will be EXIT_SUCCESS if there were no
 /// errors, EXIT_FAILURE otherwise.
 int main(int argc, char* argv[]) {
+    // Ask scheduling to not give too much resources to LFC.
+    static_cast<void>(setpriority(PRIO_PROCESS, 0, 4));
+
     int ret = EXIT_SUCCESS;
     LFCController lfc_controller;
 
-- 
2.47.2