# NAME

    MySQLTuner 2.9.0 - MySQL High Performance Tuning Script

# IMPORTANT USAGE GUIDELINES

To run the script with the default options, run the script without arguments
Allow MySQL server to run for at least 24-48 hours before trusting suggestions
Some routines may require root level privileges (script will provide warnings)
You must provide the remote server's total memory when connecting to other servers

# OPTIONS

See `mysqltuner --help` for a full list of available options and their categories.

# VERSION

Version 2.9.0
&#x3d;head1 PERLDOC

You can find documentation for this module with the perldoc command.

    perldoc mysqltuner

## INTERNALS

[https://github.com/jmrenouard/MySQLTuner-perl/blob/master/INTERNALS.md](https://github.com/jmrenouard/MySQLTuner-perl/blob/master/INTERNALS.md)

    Internal documentation

# AUTHORS

Major Hayden - major@mhtx.net
Jean-Marie Renouard - jmrenouard@gmail.com

# CONTRIBUTORS

- Matthew Montgomery
- Paul Kehrer
- Dave Burgess
- Jonathan Hinds
- Mike Jackson
- Nils Breunese
- Shawn Ashlee
- Luuk Vosslamber
- Ville Skytta
- Trent Hornibrook
- Jason Gill
- Mark Imbriaco
- Greg Eden
- Aubin Galinotti
- Giovanni Bechis
- Bill Bradford
- Ryan Novosielski
- Michael Scheidell
- Blair Christensen
- Hans du Plooy
- Victor Trac
- Everett Barnes
- Tom Krouper
- Gary Barrueto
- Simon Greenaway
- Adam Stein
- Isart Montane
- Baptiste M.
- Cole Turner
- Daniel Lewart
- Jason Gill
- Jean-Marie Renouard
- Major Hayden
- Matthew Montgomery
- Stephan GroBberndt
- Christian Loos
- Long Radix
- derZ-dev

# SUPPORT

Bug reports, feature requests, and downloads at http://mysqltuner.pl/

Bug tracker can be found at https://github.com/jmrenouard/MySQLTuner-perl/issues

Maintained by Jean-Marie Renouard (jmrenouard\\@gmail.com) - Licensed under GPL

# SOURCE CODE

[https://github.com/jmrenouard/MySQLTuner-perl/](https://github.com/jmrenouard/MySQLTuner-perl/)

    git clone https://github.com/jmrenouard/MySQLTuner-perl/.git

# COPYRIGHT AND LICENSE

Copyright (C) 2006-2026 Major Hayden - major@mhtx.net
\# Copyright (C) 2015-2026 Jean-Marie Renouard - jmrenouard@gmail.com

For the latest updates, please visit http://mysqltuner.pl/

Git repository available at https://github.com/jmrenouard/MySQLTuner-perl/

This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.

This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.

    See the GNU General Public License for more details.

You should have received a copy of the GNU General Public License
along with this program.  If not, see &lt;https://www.gnu.org/licenses/>.
