MMUG12: Talk about Percona Toolkit and the new features of MySQL 5.7

Madrid MySQL Users Group is having a Meetup this afternoon, Wednesday, 13th May at 19:00.

  • I will be presenting (in Spanish) a quick summary of Percona Toolkit and also offering a summary of the new features in MySQL 5.7 as the release candidate has been announced and we don’t expect new functionality.
  • This is also an opportunity to discuss other MySQL related topics in a less formal manner.
  • You can find information about the Meetup here.

So if you are in Madrid and are interested please come along.

El Madrid MySQL Users Group tiene una reunión esta tarde, miércoles 13 de mayo, a las 19:00.

  • Ofreceré una presentación sobre Percona Toolkit y un resumen de las características nuevas de MySQL 5.7 que recientemente se anunció como Release Candidate. Ya no esperamos cambios en su funcionalidad.
  • También habrá una oportunidad de hablar de otros temas relacionados con MySQL de una manera menos formal.
  • Se puede encontrar información de la reunión aquí.

Si estás en Madrid y te interesa estarás bienvenido.


new to pstop – vmstat style stdout interface

In November last year I announced a program I wrote called pstop. I hope that some of you have tried it and found it useful. Certainly I know that colleagues and friends use it and it has proved helpful when trying to look inside MySQL to see what it is doing.

A recent suggestion provoked me to provide a slightly different interface to pstop, that is rather than show the output in a terminal-like top format, provide a line-based summary in a similar way to vmstat(8), pt-diskstats(1p) and other similar command line tools.  I have now incorporated some changes which allow this to be done. So if you want to see every few seconds which tables are generating most load, or which files have most I/O then this tool may be useful. Example output is shown below:

Hopefully this gives you an idea.  The --help option gives you more details. I have not yet paid much attention to the output and the output is not currently well suited for a tool to parse, so I think it’s likely I will need to provide a more machine readable --raw format option at a later stage.  That said feedback on what you want to see or patches are most welcome.