From a020697c0c5f87d6179ab177ba1f467e24dab01f Mon Sep 17 00:00:00 2001
From: Michele Cereda <cereda.michele@gmail.com>
Date: Wed, 1 Oct 2025 10:05:44 +0200
Subject: [PATCH] chore(ansible): review performance suggestion about fact
 gathering

---
 knowledge base/ansible.md | 15 +++++++++++----
 1 file changed, 11 insertions(+), 4 deletions(-)

diff --git a/knowledge base/ansible.md b/knowledge base/ansible.md
index c768dd8..727bd24 100644
--- a/knowledge base/ansible.md	
+++ b/knowledge base/ansible.md	
@@ -264,26 +264,33 @@ Suggestions:
 
 - Optimize fact gathering:
 
-  - Disable fact gathering when not used.
+  - Disable fact gathering when no fact is used by the play.
+
+    ```yml
+    - name: Play with selected facts
+      gather_facts: true
+    ```
+
   - Consider using smart fact gathering:
 
     ```ini
     [defaults]
     gathering = smart
     fact_caching = jsonfile
-    fact_caching_connection = /tmp/ansible/facts.json  ; /tmp/ansible to use the directory and have a file per host
+    fact_caching_connection = /tmp/ansible/facts.json  ; '/tmp/ansible' to create a file per host in the directory
     fact_caching_timeout = 86400
     ```
 
-  - Only gather subsets of facts:
+  - Consider reducing the subsets of facts to gather when only using specific facts:
 
-    ```yaml
+    ```yml
     - name: Play with selected facts
       gather_facts: true
       gather_subset:
         - '!all'
         - '!min'
         - system
+        - date_time
     ```
 
     Refer the [setup module] for more information, and the [setup module source code] for available keys.