From 58adaf65b22cb47dde5fb210e5585e9ee2e9b1dc Mon Sep 17 00:00:00 2001
From: Douglas J Hunley <doug.hunley@gmail.com>
Date: Tue, 30 Jun 2026 13:15:16 -0400
Subject: [PATCH] feat(ansible): add vm dirty/writeback tuning params to tuned
 profile

Add vm.dirty_background_ratio, vm.dirty_expire_centisecs, vm.dirty_ratio,
and vm.dirty_writeback_centisecs to the sysctl section of the PostgreSQL
tuned profile.
---
 ansible/tasks/setup-tuned.yml | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/ansible/tasks/setup-tuned.yml b/ansible/tasks/setup-tuned.yml
index 3472cad8b..dab039909 100644
--- a/ansible/tasks/setup-tuned.yml
+++ b/ansible/tasks/setup-tuned.yml
@@ -161,6 +161,14 @@
           value: '62500'
         - option: 'net.netfilter.nf_conntrack_max'
           value: '250000'
+        - option: 'vm.dirty_background_ratio'
+          value: '10'
+        - option: 'vm.dirty_expire_centisecs'
+          value: '3000'
+        - option: 'vm.dirty_ratio'
+          value: '40'
+        - option: 'vm.dirty_writeback_centisecs'
+          value: '500'
         - option: 'vm.panic_on_oom'
           value: '1'
       loop_control: