From 250b196bf8de2f5bdc0d052c5bd870b536488c5c Mon Sep 17 00:00:00 2001
From: Alan Orth <alan.orth@gmail.com>
Date: Sat, 12 Mar 2016 19:27:56 +0200
Subject: [PATCH] roles/nginx: Add comment for sendfile option

From: https://github.com/h5bp/server-configs-nginx/blob/master/nginx.conf

Signed-off-by: Alan Orth <alan.orth@gmail.com>
---
 roles/nginx/files/nginx.conf | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/roles/nginx/files/nginx.conf b/roles/nginx/files/nginx.conf
index 85f8644..63ccdfe 100644
--- a/roles/nginx/files/nginx.conf
+++ b/roles/nginx/files/nginx.conf
@@ -23,6 +23,11 @@ http {
 
     access_log off;
 
+    # Speed up file transfers by using sendfile() to copy directly
+    # between descriptors rather than using read()/write().
+    # For performance reasons, on FreeBSD systems w/ ZFS
+    # this option should be disabled as ZFS's ARC caches
+    # frequently used files in RAM by default.
     sendfile        on;
     #tcp_nopush     on;