Increase readahead on virtio block devices

diff --git a/cookbooks/devices/templates/default/udev.rules.erb b/cookbooks/devices/templates/default/udev.rules.erb
index 9c703409dc82e0d1d087272a6bcaef367b7cc778..bc6f67eb4aa2215a3a925b438c0a7ae2014106b9 100644 (file)
--- a/cookbooks/devices/templates/default/udev.rules.erb
+++ b/cookbooks/devices/templates/default/udev.rules.erb
@@ -55,3 +55,6 @@ ACTION=="add", SUBSYSTEM=="block", ENV{DEVTYPE}=="disk", ENV{ID_BUS}=="ata", ENV
 
 # Enable request merging for NVME devices
 ACTION=="add", SUBSYSTEM=="block", DRIVERS=="nvme", ATTR{queue/nomerges}="1"
+
+# Increase readahead on virtio block devices
+ACTION=="add", SUBSYSTEM=="block", DRIVERS=="virtio_blk", ATTR{queue/read_ahead_kb}="512"