I have seen a lot of developers confuse scalability and performance. Some use these terms interchangeably. It is important that we use terms correctly, so that we do not create false expectations for the team or the client, or solve the wrong problems.
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You website is slow. You suspect MySQL queries are slow, but don’t know where to begin. This article, aimed at intermediate developers, will present my methodology and serve as a starting point for first-timers. I won’t go in-depth, only cover some of the basics.
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At FooLab, we have been using jQuery because it’s easy to learn, there is a big community with a lot of examples and advice and also because it’s easier to find developers familiar with it. It’s not a bad framework, but it’s very easy to abuse when you do not know how it works and what it implies.
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Some of the web apps that we build at FooLab rely heavily on Javascript. But when your CPU usage is through the roof, where do you start looking?
Many developers start straight with a hypothesis and then try various corrections until something happens. This is a waste of time; no amount of experience changes that. Follow the scientific method.
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Contact me if you need to rescue a multi-million dollar project. Through FooLab, I helped countless high-profile companies.
Organizer of ConFoo, a multi-technology conference for developers.
Organizer of PHP Quebec, a province-wide User Group where PHP developers learn and socialize.
Speaker at international conferences:
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