From 19bee11884e7254945bc28a119a91e5e419efdf2 Mon Sep 17 00:00:00 2001
From: Alan Pearce
Date: Mon, 1 Apr 2024 17:56:40 +0200
Subject: bare-metal: optimise read speed on NVMe

---
 system/settings/hardware/bare-metal.nix | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/system/settings/hardware/bare-metal.nix b/system/settings/hardware/bare-metal.nix
index d49e9d41..9d870a40 100644
--- a/system/settings/hardware/bare-metal.nix
+++ b/system/settings/hardware/bare-metal.nix
@@ -22,7 +22,8 @@
   };
   services.udev.extraRules = ''
     # set scheduler for NVMe
-    ACTION=="add|change", KERNEL=="nvme[0-9]n[0-9]", ATTR{queue/scheduler}="none"
+    ACTION=="add|change", KERNEL=="nvme[0-9]n[0-9]", ATTR{queue/scheduler}="kyber"
+    ACTION=="add|change", KERNEL=="nvme[0-9]n[0-9]", ATTR{queue/iosched/read_lat_nsec}="100000"
     # set scheduler for SSD and eMMC
     ACTION=="add|change", KERNEL=="sd[a-z]|mmcblk[0-9]*", ATTR{queue/rotational}=="0", ATTR{queue/scheduler}="mq-deadline"
     # set scheduler for rotating disks
-- 
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