tuned

最後更新: 2017-08-07

介紹

 

tuned is a daemon that monitors the use of system components and

dynamically tunes system settings based on that monitoring information.

Program: python

 


Configure

 

/etc/tuned/tuned-main.conf

# Disable Service

chkconfig tuned off

service tuned stop
 

 


Cmd

 

# list profiles

tuned-adm list

Available profiles:
- balanced
- desktop
- latency-performance
- network-latency
- network-throughput
- powersave
- throughput-performance
- virtual-guest
- virtual-host

# To disable all tuning:

tuned-adm off

# Current active profile

tuned-adm active

# Switching to the "balanced" profile

tuned-adm profile balanced

 


Profile

 

virtual-guest

* based on the enterprise-storage profile
 + decreases the swappiness of virtual memory

virtual-host

* Based on the enterprise-storage profile
 + decreases the swappiness of virtual memory
 + enables more aggressive writeback of dirty pages.
 + Non-root and non-boot file systems are mounted with barrier=0