From 19a26f32ae41001a8bf014f7c974e02cfe929468 Mon Sep 17 00:00:00 2001
From: Rabi Mishra <ramishra@redhat.com>
Date: Mon, 11 May 2020 15:04:33 +0530
Subject: [PATCH] Configure ansible forks based on cores

At present we use a fixed value of 36. It seems the emperical
formula is 4 forks per core ans would be automatically limited
by ansible to the number of hosts.

Change-Id: I9a9e600935e3b8443341a1dc28421a19d9978bfe
(cherry picked from commit ce948ae04947596afe2e1acefaca0a7813f1268f)
---
 tripleoclient/utils.py | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/tripleoclient/utils.py b/tripleoclient/utils.py
index 3d44d15ba..9b9300c71 100644
--- a/tripleoclient/utils.py
+++ b/tripleoclient/utils.py
@@ -31,6 +31,7 @@ import logging
 from six.moves.configparser import ConfigParser
 
 import json
+import multiprocessing
 import netaddr
 import os
 import os.path
@@ -477,7 +478,7 @@ def run_ansible_playbook(playbook, inventory, workdir, playbook_dir=None,
         '-T'
     ).format(os.devnull)
     env['ANSIBLE_DISPLAY_FAILED_STDERR'] = True
-    env['ANSIBLE_FORKS'] = 36
+    env['ANSIBLE_FORKS'] = multiprocessing.cpu_count() * 4
     env['ANSIBLE_TIMEOUT'] = ansible_timeout
     env['ANSIBLE_GATHER_TIMEOUT'] = 45
     env['ANSIBLE_SSH_RETRIES'] = 3