With Performance Schema improvements in MySQL 5.6 I think we’re in the good shape with insight on what is causing performance bottlenecks as well as where CPU resources are spent. (Performance Schema does not accounts CPU usage directly but it is something which can be relatively easily derived from wait and stage information). Where we’re [...]
How Percona does a MySQL Performance Audit
November 24, 2008 By 17 Comments
Our customers or prospective customers often ask us how we do a performance audit (it’s our most popular service). I thought I should write a blog post that will both answer their question, so I can just reply “read all about it at this URL” and share our methodology with readers a little bit. This [...]
10+ Ways to Crash or Overload MySQL
November 13, 2007 By 20 Comments
People are sometimes contacting me and asking about bugs like this which provide a trivial way to crash MySQL to the user with basic privileges and asking me what to do. My answer to them is – there is nothing new to it and they just sit should back and relax Really – there are [...]
Top 5 Wishes for MySQL
June 29, 2007 By 10 Comments
About a week ago Marten send me email pointing to his article published on Jays Blog (Come on Marten, it is time for you to get your own blog). I should have replied much earlier but only found time to do that now. So here is my list 1. Be Pluggable Unlike many OpenSource projects [...]
Commodity Hardware, Commodity Software and Commodity People
June 15, 2007 By 9 Comments
In the previous post I mentioned not all architectures and solutions work for Commodity People, and people seems to agree with me. Number of vendors would claim they are in Commodity Software or Hardware business but few would probably mention they are doing it for Commodity People, because few people would like to be called [...]
MySQL Query Cache
July 27, 2006 By 70 Comments
MySQL has a great feature called “Query Cache” which is quite helpful for MySQL Performance optimization tasks but there are number of things you need to know. First let me clarify what MySQL Query Cache is – I’ve seen number of people being confused, thinking MySQL Query Cache is the same as Oracle Query Cache [...]
MySQL Server Memory Usage
May 17, 2006 By 21 Comments
Every so often people ask me the question how should they estimate memory consumption by MySQL Server in given configuration. What is the formula they could use. The reasons to worry about memory usage are quite understandable. If you configure MySQL Server so it uses too small amount of memory it will likey perform suboptimally. [...]
