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tuned (3) Versions 1.0.1

Chef tuned cookbook handles tuned profile creation and actvation

Berkshelf/Librarian
Policyfile
Knife
cookbook 'tuned', '= 1.0.1'
cookbook 'tuned', '= 1.0.1', :supermarket
knife cookbook site install tuned
knife cookbook site download tuned
README
Dependencies
Quality

Tuned Chef Cookbook

Build Status Code Climate Gitter

Description

Installs tuned and enables/disables tuned profiles. For more information on tuned please see the Red Hat documentation on this daemon

Usage

Attribute overview

Define some attributes to be used by the 'tuned_profile' resource. Attributes have 3 levels default['tuned']['profile']['myprofile'] - used as the profile filename must match resource instance name

default['tuned']['profile']['myprofile']['cpu']
  • creates a heading in the profile init file [cpu]
default['tuned']['profile']['myprofile']['cpu']['governor'] = 'performance'
  • creates an key value entry in the profile file under the '[cpu]' heading

Attribute example

default['tuned']['profile']['myprofile']['cpu']['governor'] = 'performance'
default['tuned']['profile']['myprofile']['cpu']['energy_perf_bias'] = 'performance'
default['tuned']['profile']['myprofile']['cpu']['min_perf_pct'] = '100'
default['tuned']['profile']['myprofile']['disk']['readahead'] = '4096'
default['tuned']['profile']['myprofile']['vm']['transparent_hugepage'] = 'never'
default['tuned']['profile']['myprofile']['vm']['transparent_hugepage.defrag'] = 'never'
default['tuned']['profile']['myprofile']['sysctl']['kernel.sched_wakeup_granularity_ns'] = '15000000'
default['tuned']['profile']['myprofile']['sysctl']['kernel.sched_min_granularity_ns'] = '10000000'
default['tuned']['profile']['myprofile']['sysctl']['vm.dirty_background_ratio'] = '10'
default['tuned']['profile']['myprofile']['sysctl']['vm.dirty_ratio'] = '30'
default['tuned']['profile']['myprofile']['main']['include'] = 'latency-performance'
default['tuned']['profile']['myprofile']['sysctl']['vm.swappiness'] = '30'
default['tuned']['profile']['myprofile']['sysfs']['/sys/kernel/mm/transparent_hugepage/enabled'] = 'never'
default['tuned']['profile']['myprofile']['sysfs']['/sys/kernel/mm/transparent_hugepage/defrag'] = 'never'

The above example attributes when combined with a resource call:

tuned_profile 'myprofile' do
 action [:create, :enable]
end

Will create a file

  • /usr/lib/tuned/myprofile/tuned.conf

With the following contents:

# Dynamically generated default tuned profile file, applied by Chef!
[main]
include=latency-performance
[cpu]
governor=performance
energy_perf_bias=performance
min_perf_pct=100
[disk]
readahead=4096
[sysctl]
kernel.sched_wakeup_granularity_ns=15000000
kernel.sched_min_granularity_ns=10000000
vm.dirty_background_ratio=10
vm.dirty_ratio=30
vm.swappiness=30
[sysfs]
/sys/kernel/mm/transparent_hugepage/enabled=never
/sys/kernel/mm/transparent_hugepage/defrag=never
[vm]
transparent_hugepage=never
transparent_hugepage.defrag=never

include the default recipe

include tuned::default

Installs tuned if not already installed

create and enable a profile

tuned_profile 'myprofile' do
 action [:create, :enable]
end

enable a default system profile

See Red Hat Documentation for availale defaults tuned_profile 'balanced' do action [:enable] end

disable a profile (reverts to default)

tuned_profile 'myprofile' do
  action [:disable]
end

default to tuned reccomended profile

tuned_profile 'myprofile' do
  action [:default]
end

Contributing

  1. Fork it
  2. Create your feature branch + tests + Readme (git checkout -b my-new-feature)
  3. Commit your changes (git commit -am 'Add some feature')
  4. Push to the branch (git push origin my-new-feature)
  5. Create new Pull Request

Requirements

Platform:

  • RHEL (>= 6.6)
  • CentOS (>= 6.6)

Cookbooks:

No dependencies defined

Attributes

No attributes defined

Recipes

  • tuned::default

Resources

tuned_profile

Actions

  • create: Default action.
  • default:
  • disable:
  • enable:

License and Maintainer

Maintainer:: Dave Meekin (davemeekin.github@gmail.com)

License:: Apache v2.0

Dependent cookbooks

This cookbook has no specified dependencies.

Contingent cookbooks

There are no cookbooks that are contingent upon this one.

Foodcritic Metric
            

1.0.1 passed this metric