From: Dietmar Maurer <dietmar@proxmox.com>
Date: Tue, 16 Apr 2013 05:42:33 +0000 (+0200)
Subject: disable Nagle algorithm
X-Git-Url: https://git.proxmox.com/?a=commitdiff_plain;h=fdbeefcc3c3d4a8578a187ec83b5dfd730e59866;p=pve-manager-legacy.git

disable Nagle algorithm
---

diff --git a/PVE/APIDaemon.pm b/PVE/APIDaemon.pm
index 7eabf0cf..8435004a 100755
--- a/PVE/APIDaemon.pm
+++ b/PVE/APIDaemon.pm
@@ -3,6 +3,7 @@ package PVE::APIDaemon;
 use strict;
 use warnings;
 use POSIX ":sys_wait_h";
+use Socket qw(IPPROTO_TCP TCP_NODELAY SOMAXCONN);
 use IO::Socket::INET;
 
 use PVE::SafeSyslog;
@@ -28,6 +29,10 @@ sub new {
 	ReuseAddr => 1) ||
 	die "unable to create socket - $@\n";
 
+    # we ofter observe delays when using Nagle algorithm,
+    # so we disable that to maximize performance
+    setsockopt($socket, IPPROTO_TCP, TCP_NODELAY, 1);
+
     my $cfg = { %args };
     my $self = bless { cfg => $cfg }, $class;