commit c5cf036d9a40333a7f202d4c2f72074f1651d534
Author: Luke Short <ekultails@gmail.com>
Date:   Thu Sep 10 15:58:11 2020 -0400

    Adjust Ansible forks caculations
    
    Using a multiple of 10 can be excessive on resource usage. It has now
    been lowered to 4. The default maximum will also no longer exceed 100.
    
    Change-Id: I57345d5b100efce143fa940b56c81f5e6bc6c390
    Signed-off-by: Luke Short <ekultails@gmail.com>
    (cherry picked from commit 9e9948e7edc011bcf69b240543f383c7754bb2d8)

diff --git a/tripleo_common/actions/ansible.py b/tripleo_common/actions/ansible.py
index 3a65307..34f5989 100644
--- a/tripleo_common/actions/ansible.py
+++ b/tripleo_common/actions/ansible.py
@@ -102,7 +102,8 @@ def write_default_ansible_cfg(work_dir,
                     datetime.now().strftime("%Y-%m-%dT%H:%M:%S"))
         os.rename(log_path, new_path)
 
-    config.set('defaults', 'forks', str(multiprocessing.cpu_count() * 10))
+    config.set('defaults', 'forks', str(min(
+        multiprocessing.cpu_count() * 4, 100)))
     config.set('defaults', 'timeout', '30')
     config.set('defaults', 'gather_timeout', '30')
 
diff --git a/tripleo_common/tests/actions/test_ansible.py b/tripleo_common/tests/actions/test_ansible.py
index ddaf518..1506381 100644
--- a/tripleo_common/tests/actions/test_ansible.py
+++ b/tripleo_common/tests/actions/test_ansible.py
@@ -385,4 +385,4 @@ class CopyConfigFileTest(base.TestCase):
             ansible_cfg = configparser.ConfigParser()
             ansible_cfg.read(resulting_ansible_config)
 
-            self.assertEqual('40', ansible_cfg.get('defaults', 'forks'))
+            self.assertEqual('16', ansible_cfg.get('defaults', 'forks'))