Optimize IO Disk

Optimize IO Disk Virtio in Proxmox

create file in /etc/systemd/system/set-ioscheduler.service

[Unit]
Description=Set I/O Scheduler to Deadline

[Service]
Type=oneshot
ExecStart=/bin/bash -c 'echo "mq-deadline" > /sys/block/vdb/queue/scheduler && echo 100 > /sys/block/vdb/queue/iosched/read_expire && echo 250 > /sys/block/vdb/queue/iosched/write_expire'

[Install]
WantedBy=multi-user.target

systemctl daemon-reload
systemctl enable set-ioscheduler
systemctl start set-ioscheduler