Embedded Files
31.1 Concept
31.1 Concept
Each profile modifies system behaviours such as maximum throughput, minimum latency, and power efficiency.
So, the administrator can switch profile without adjust configurations one by one.
31.2 Change Profile
31.2 Change Profile
List current profile
tuned-adm active
List all tuned profile
tuned-adm list
Ask system to recommend a profile
tuned-adm recommend
Change profile
tuned-adm profile [Profile]
Example: tuned-adm profile virtual-guest
virtual-guest suitable for Linux which is running inside cloud environments or hypervisors (KVM, VMware). This profile can reduces memory swappiness and optimizes disk I/O for virtualized virtual disks.
List current profile
tuned-adm active
The profile will be reset to balanced after reboot. Some Linux may become permenant settings.
Result
student@localhost:~$ tuned-adm active
Current active profile: balanced
student@localhost:~$ tuned-adm list
Available profiles:
- accelerator-performance - Throughput performance based tuning with disabled higher latency STOP states
- aws - Optimize for aws ec2 instances
- balanced - General non-specialized tuned profile
- balanced-battery - Balanced profile biased towards power savings changes for battery
- desktop - Optimize for the desktop use-case
- hpc-compute - Optimize for HPC compute workloads
- intel-sst - Configure for Intel Speed Select Base Frequency
- latency-performance - Optimize for deterministic performance at the cost of increased power consumption
- network-latency - Optimize for deterministic performance at the cost of increased power consumption, focused on low latency network performance
- network-throughput - Optimize for streaming network throughput, generally only necessary on older CPUs or 40G+ networks
- optimize-serial-console - Optimize for serial console use.
- powersave - Optimize for low power consumption
- throughput-performance - Broadly applicable tuning that provides excellent performance across a variety of common server workloads
- virtual-guest - Optimize for running inside a virtual guest
- virtual-host - Optimize for running KVM guests
Current active profile: balanced
student@localhost:~$ tuned-adm recommend
virtual-guest
student@localhost:~$ tuned-adm profile virtual-guest
student@localhost:~$ tuned-adm active
Current active profile: virtual-guest
31.3 Main Global Configuration File For Tune Service
31.3 Main Global Configuration File For Tune Service
May access /etc/tuned/tuned-main.conf
31.4 Create Custom Profile
31.4 Create Custom Profile
Check status of systemctl
systemctl status tuned
If tuned service not enabled, enabled and start the service : sudo systemctl enable --now tuned
Verify active profile
tuned-adm active
Verify swappiness before change profile
sysctl -a | grep swappiness
Create new profile directory
mkdir /etc/tuned/profiles/[Profile name]
Example: mkdir /etc/tuned/profiles/myprofile
Create new configuration file
sudo tee -a /etc/tuned/profiles/[Profile name]/[Configuration file name].conf <<[Stop word]
Example: sudo tee -a /etc/tuned/profiles/myprofile/tuned.conf <<STOP
Input command into configuration file
[sysctl]
vm.swappiness = [Swappiness number] Example: vm.swappiness = 66
STOP
Change profile
tuned-adm profile [Profile]
Example: tuned-adm profile myprofile
Verify active profile
tuned-adm active
Verify swappiness after change profile
sysctl -a | grep swappiness
Cleanup
tuned-adm profile balanced
rm -rf /etc/tuned/profiles/myprofile
Result
student@localhost:~$ systemctl status tuned
● tuned.service - Dynamic System Tuning Daemon
Loaded: loaded (/usr/lib/systemd/system/tuned.service; enabled; preset: enabled)
Active: active (running) since Wed 2026-08-05 10:57:07 +08; 25min ago
Invocation: e633e224abdd498bb502ec8162dda292
Docs: man:tuned(8)
man:tuned.conf(5)
man:tuned-adm(8)
Main PID: 1160 (tuned)
Tasks: 4 (limit: 22995)
Memory: 18.4M (peak: 20.3M)
CPU: 2.479s
CGroup: /system.slice/tuned.service
└─1160 /usr/bin/python3 -Es /usr/sbin/tuned -l -P
Aug 05 10:56:56 localhost.localdomain systemd[1]: Starting tuned.service - Dynamic System Tuning Daemon...
Aug 05 10:57:07 localhost.localdomain systemd[1]: Started tuned.service - Dynamic System Tuning Daemon.
student@localhost:~$ tuned-adm active
Current active profile: balanced
student@localhost:~$ sudo sysctl -a | grep swappiness
[sudo] password for student:
vm.swappiness = 60
student@localhost:~$ sudo mkdir /etc/tuned/profiles/myprofile
student@localhost:/etc/tuned$ sudo tee -a /etc/tuned/profiles/myprofile/tuned.conf <<STOP
> [sysctl]
> vm.swappiness = 66
> STOP
[sysctl]
vm.swappiness = 66
student@localhost:/etc/tuned$ tuned-adm profile myprofile
student@localhost:/etc/tuned$ tuned-adm active
Current active profile: myprofile
student@localhost:/etc/tuned$ sysctl -a | grep swappiness
vm.swappiness = 66
student@localhost:/etc/tuned$ tuned-adm profile balanced
student@localhost:/etc/tuned$ tuned-adm active
Current active profile: balanced
student@localhost:/etc/tuned$ sudo rm -rf /etc/tuned/profiles/myprofile
Page updated
Google Sites
Report abuse