From 6ee5ffef91cb4157079fecb89bf42aa41e81e801 Mon Sep 17 00:00:00 2001
From: Peter Jin <pjin@linux.ibm.com>
Date: Wed, 1 Oct 2025 15:09:49 -0400
Subject: [PATCH] udev/rules.d: Set default io scheduler to 'none' for
 virtio-blk
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Use 'none' as default io scheduler for virtio-blk devices. Performance
improvements for multi-queue setups and to reduce CPU consumption.

Signed-off-by: Peter Jin <pjin@linux.ibm.com>
Signed-off-by: Jan Höppner <hoeppner@linux.ibm.com>
---
 etc/udev/rules.d/59-virtio-blk.rules | 1 +
 1 file changed, 1 insertion(+)

diff --git a/etc/udev/rules.d/59-virtio-blk.rules b/etc/udev/rules.d/59-virtio-blk.rules
index 2e3c13f7..ca6e1c4d 100644
--- a/etc/udev/rules.d/59-virtio-blk.rules
+++ b/etc/udev/rules.d/59-virtio-blk.rules
@@ -1 +1,2 @@
 SUBSYSTEM=="block", ACTION=="add", KERNEL=="vd*[!0-9]", TEST=="queue/rotational", ATTR{queue/rotational}="0"
+SUBSYSTEM=="block", ACTION=="add", KERNEL=="vd*[!0-9]", TEST=="queue/scheduler", ATTR{queue/scheduler}="none"