Improve Performance

Here we share some small but useful tweaks to squeeze a bit more performance out of your node. Nothing too fancy — just practical stuff we’ve tested ourselves: kernel tuning, disks layout, and a few tricks that can make your setup run smoother and faster.

Enable AMD P-State Scaling Driver

Edit /etc/default/grub and add amd_pstate=active the following line:

GRUB_CMDLINE_LINUX_DEFAULT="amd_pstate=active"

Then update GRUB and reboot:

sudo update-grub && sudo reboot

CPU Governor

Set the CPU governor to performance mode:

for cpu in /sys/devices/system/cpu/cpu*/cpufreq/scaling_governor; do
  echo performance | sudo tee "$cpu"
done

And/or install cpufrequtils to make it persistent across reboots:

sudo apt install -y cpufrequtils
echo 'GOVERNOR="performance"' | sudo tee /etc/default/cpufrequtils
sudo systemctl disable --now ondemand
sudo systemctl enable --now cpufrequtils

Disk Layout

For best disk I/O latency, use NVMe drives in RAID0:

sudo mdadm --create --verbose /dev/md0 --level=0 --raid-devices=2 /dev/nvmeXnY /dev/nvmeXnZ

Format RAID0 as XFS

Stripe and format RAID0 with 2 disks:

sudo mkfs.xfs -f -m reflink=0 -L celestia -d su=512k,sw=2 /dev/md0

Mount the RAID0 Volume

Create a mount point:

sudo mkdir -p /mnt/celestia

Add the mount point to /etc/fstab:

LABEL=celestia   /mnt/celestia    xfs  defaults,noatime,logbufs=8,nofail  0  0

Mount it:

sudo mount -a

Network Congestion Control

Add this string to /etc/sysctl.conf or your file in /etc/sysctl.d/ :

net.ipv4.tcp_congestion_control = bbr

Binary Optimization

For optimal performance with minimal RAM usage, build with jemalloc:

make build-jemalloc

📘 Read more:

Usefull CommandsLumera Node