diff --git a/QGIS3---QGIS-Server-code-sprint-Notes.md b/QGIS3---QGIS-Server-code-sprint-Notes.md
index cae103d..1dbcd16 100644
--- a/QGIS3---QGIS-Server-code-sprint-Notes.md
+++ b/QGIS3---QGIS-Server-code-sprint-Notes.md
@@ -65,6 +65,9 @@ See https://github.com/dmarteau/QGIS
 
 * Performance test for QGIS 2 and QGIS 3
 * Add environment variables to manage configuration of test (server, warm up, users, etc.)
+* Profiling of the server: [Callgrind](https://dl.dropboxusercontent.com/u/106773293/profiling_qgis_server.png)
+  * Slowness in initializing the layers at each request: will be solved by the new QProject
+  * Big perf problems saving the PNG in GetMap. Will be investigated.
 
 ## Tracking of what is done during Code sprint