From 439a3c178bcd55d4a7cc1b4132eb5eab1b146ee3 Mon Sep 17 00:00:00 2001
From: Maarten Breddels <maartenbreddels@gmail.com>
Date: Mon, 14 Dec 2020 21:20:25 +0100
Subject: [PATCH] Update README.md

---
 README.md | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/README.md b/README.md
index efe24f6..1a7753f 100644
--- a/README.md
+++ b/README.md
@@ -68,3 +68,7 @@ Merge the viztracer and perf/per4m results into a single html file.
 Identify the problem (GIL visible, possible low instruction counts/cycle):
 
 
+![image](https://user-images.githubusercontent.com/1765949/102130936-c4cd6400-3e51-11eb-9ded-7b9bd77a09db.png)
+
+The purple 'S' blocks indicate the threads/processes are in a waiting state, this is clearly the GIL at work, which is switching after [`sys.getswitchinterval`](https://docs.python.org/3/library/sys.html#sys.getswitchinterval) (0.005 seconds)
+