From 0c91ae274362ceb62306c51c3094e5652952f192 Mon Sep 17 00:00:00 2001
From: Jakob Borg <jakob@nym.se>
Date: Fri, 29 Apr 2016 16:49:16 +0200
Subject: [PATCH] users/faq: Mention GOMAXPROCS in question about CPU usage

---
 users/faq.rst | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/users/faq.rst b/users/faq.rst
index 1d8f6e8e2..1c3a8f175 100644
--- a/users/faq.rst
+++ b/users/faq.rst
@@ -134,6 +134,12 @@ causes a certain amount of extra CPU usage to calculate the summary data it
 presents. Note however that once things are *in sync* CPU usage should be
 negligible.
 
+To limit the amount of CPU used when syncing and scanning, set the
+environment variable ``GOMAXPROCS`` to the maximum number of CPU cores
+Syncthing should use at any given moment. For example, ``GOMAXPROCS=2`` on a
+machine with four cores will limit Syncthing to no more than half the
+system's CPU power.
+
 Should I keep my device IDs secret?
 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~