From fd3d6a1ca8410c51b27ec389ab6e0b8912b753b7 Mon Sep 17 00:00:00 2001
From: erjia <erjia@fb.com>
Date: Wed, 1 Jun 2022 15:47:56 +0000
Subject: [PATCH] Update tutorial about placing sharding_filter

---
 docs/source/tutorial.rst | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/docs/source/tutorial.rst b/docs/source/tutorial.rst
index 910b7ca83..c5c241ded 100644
--- a/docs/source/tutorial.rst
+++ b/docs/source/tutorial.rst
@@ -176,6 +176,11 @@ When we re-run, we will get:
     ...
     n_sample = 6
 
+Note:
+
+- Place ``ShardingFilter`` (``datapipe.sharding_filter``) as early as possible in the pipeline, especially before expensive
+  operations such as decoding, in order to avoid repeating these expensive operations across worker/distributed processes.
+
 
 You can find more DataPipe implementation examples for various research domains `on this page <torchexamples.html>`_.