[diffoscope] 03/03: Add tips about running with TMPDIR=/run/shm

[Ximin Luo]

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infinity0 pushed a commit to branch experimental
in repository diffoscope.

commit 00f6b7d53d8f7f30701e51dce29942145406c369
Author: Ximin Luo <infinity0 at debian.org>
Date:   Mon May 29 13:27:33 2017 +0200

    Add tips about running with TMPDIR=/run/shm
---
 README.rst | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/README.rst b/README.rst
index 76d048b..9f95507 100644
--- a/README.rst
+++ b/README.rst
@@ -42,6 +42,16 @@ To get all possible options, run::
 
     $ bin/diffoscope --help
 
+If you have enough RAM, you can improve performance by running::
+
+    $ TMPDIR=/run/shm bin/diffoscope very-big-input-0/ very-big-input-1/
+
+By default this allowed to use up half of RAM; for more add something like::
+
+    tmpfs   /run/shm    tmpfs   size=80%    0   0
+
+to your ``/etc/fstab``; see ``man mount`` for details.
+
 External dependencies
 ---------------------
 

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