From 0e2e92123d06f3dbb9c08671457631b1577845b4 Mon Sep 17 00:00:00 2001
From: Nikita Zlobin <nick87720z@gmail.com>
Date: Thu, 11 Mar 2021 22:52:39 +0500
Subject: [PATCH] README: add tmpdir vs RAM warning

---
 README.md | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/README.md b/README.md
index c1c891a..c1ef591 100644
--- a/README.md
+++ b/README.md
@@ -13,6 +13,9 @@ Typical sequence:
 
 Note: Even 3x fft upscale with 3x rgb downscale make smoother look due to how fft conversion works.
 
+Warning:
+FFT resynth performs very slow if tmpdir is located on slow media. Placing it in tmpfs gives best speed, but may be risky, as imagemagick can easily run out of memory for too big images (I would usually interrupt it before system becomes unresponsive, forcing me to do it anyway).
+
 Requirements:
 - imagemagick
 - coreutils
-- 
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