Using powertop2tuned to Create a TuneD Profile

11 Using powertop2tuned to Create a TuneD Profile

Use powertop2tuned to create a TuneD profile that includes the current active TuneD profile with the addition of PowerTOP recommendations.

Perform the following steps:

Run the powertop2tuned command with the name of the profile you're creating. For example, to create a profile called mypowertuneprofile run the following command:
```
sudo powertop2tuned mypowertuneprofile
```
The command outputs a message as it starts PowerTOP to generate the recommendations, as shown in the following sample output:
```
Running PowerTOP, please wait...
Generating shell script /etc/tuned/mypowertuneprofile/script.sh
Generating TuneD config file /etc/tuned/mypowertuneprofile/tuned.conf
...
```

Open and customize the /etc/tuned/mypowertuneprofile/tuned.conf file generated in the preceding step.

As shown in the following example file extract, by default, the PowerTOP recommendations are initially commented out. Uncomment entries according to system requirements.

#Automatically generated by powertop2tuned tool

[main]
include=virtual-guest


# Enable SATA link power management for host2 
#/sys/class/scsi_host/host2/link_power_management_policy=med_power_with_dipm

# Enable SATA link power management for host3 
#/sys/class/scsi_host/host3/link_power_management_policy=med_power_with_dipm

# Enable SATA link power management for host4 
#/sys/class/scsi_host/host4/link_power_management_policy=med_power_with_dipm

...

# Wake status for USB device usb1 
#/sys/bus/usb/devices/usb1/power/wakeup=enabled

# Wake status for USB device usb2 
#/sys/bus/usb/devices/usb2/power/wakeup=enabled

[sysctl]
# VM writeback timeout 
#vm.dirty_writeback_centisecs=1500
...

The profile with PowerTOP recommendations and the current active TuneD profile settings is created.

You can also use powertop2tuned to create a TuneD profile using an existing HTML PowerTOP report. For example, to use a PowerTOP report in file called myreport.html to create a profile called mypowertuneprofile, run the following command:

sudo powertop2tuned --input myreport.html mypowertuneprofile