From 2009a985da892ad913ad0217061c3638d10b86ba Mon Sep 17 00:00:00 2001
From: "Pierre-Loup A. Griffais" <github.com@plagman.net>
Date: Wed, 15 Aug 2018 20:56:32 -0700
Subject: [PATCH] Update PREREQS.md

---
 PREREQS.md | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/PREREQS.md b/PREREQS.md
index e1e337c8..28196495 100644
--- a/PREREQS.md
+++ b/PREREQS.md
@@ -44,4 +44,6 @@ VR is not currently supported on Intel graphics.
 ## DirectX 11 games:
 You will need NVIDIA 396.51 or Mesa 18.1.x at a minimum. LLVM7 is recommended to play DX11 games without GPU hangs.
 
+# FD LIMIT REQUIREMENTS
 
+Proton uses the 'esync' patchset for performance improvements in multi-threaded games. It can require a higher File Descriptor limit per process than what it set up by default in some distributions. If you're not running Ubuntu, SteamOS or Debian, please follow the instructions over at https://github.com/zfigura/wine/blob/esync/README.esync to increase your FD limit.