From 411109f484e7c8537540df414e92015d94a7ca98 Mon Sep 17 00:00:00 2001
From: wm4 <wm4@nowhere>
Date: Sat, 3 Jan 2015 14:49:48 +0100
Subject: TOOLS/lua/observe-all: add a warning

This is just natural, but it's also not that obvious.
---
 TOOLS/lua/observe-all.lua | 4 ++++
 1 file changed, 4 insertions(+)

(limited to 'TOOLS')

diff --git a/TOOLS/lua/observe-all.lua b/TOOLS/lua/observe-all.lua
index 9bfdf44992..be9f7270e4 100644
--- a/TOOLS/lua/observe-all.lua
+++ b/TOOLS/lua/observe-all.lua
@@ -1,4 +1,8 @@
 -- Test script for property change notification mechanism.
+-- Note that watching/reading some properties can be very expensive, or
+-- require the player to synchronously wait on network (when playing
+-- remote files), so you should in general only watch properties you
+-- are interested in.
 
 local utils = require("mp.utils")
 
-- 
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