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http://devconf.ru/phpconf/page/programm/

MySQL & MariaDB history talk
Michael Widenius Co-Founder of MySQL AB Author of the MySQL Server
and
MariaDB fork http://monty-says.blogspot.com/
A talk about the history of MySQL.
Why MySQL was released as Open Source
Why the MySQL founders took in investors
The challenges of growing an Open Source product and a company
The Sun deal; How was it made and what happened at Sun
The Oracle / Sun merger and the DOJ and EU process.
What has happened until now and what is likely to happen in the near
future.
PHP5 - Premature Optimization Mistakes
Ilia Alshanetsky - Core PHP Developer, an active member of PHP's Q&A
team and a Release Master for PHP 5.2. He authored and co-authored a
number of extensions with notables such as SHMOP, PDO, SQLite and GD
and is responsible for large number of bug fixes and performance
tweaks in the language.
One of the thing that many people want to have is fast code as it
allows handling of more data/clients with less resources, saving
money
and improving your overall efficiencies. However, premature
optimization can often result in broken code, enormous amount of
wasted time and missed deadlines. This talk will not only explain the
common errors, but also offer easy performance solutions.
[Доклад с синхропереводом в зале А]