From 525f3e9044b213316a3df30df4996a7d7c3c60ef Mon Sep 17 00:00:00 2001
From: Ivan Babrou <ibobrik@gmail.com>
Date: Tue, 21 Nov 2017 16:03:57 -0800
Subject: [PATCH] funcslower: add a note about nested calls

---
 tools/funcslower.py | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/tools/funcslower.py b/tools/funcslower.py
index b8ef230ae9e4..681e687f44c7 100755
--- a/tools/funcslower.py
+++ b/tools/funcslower.py
@@ -11,6 +11,9 @@
 # return from each function. For commonly-invoked functions like memory allocs
 # or file writes, this can be extremely expensive. Mind the overhead.
 #
+# NOTE: This tool cannot trace nested functions in the same invocation
+# due to instrumentation specifics, only innermost calls will be visible.
+#
 # By default, a minimum millisecond threshold of 1 is used.
 #
 # Copyright 2017, Sasha Goldshtein