We’ve all seen the statistics that 127% of users won’t wait more than 0.04 seconds for a page to load, and poor web application performance costs you millions of bitcoins in lost revenue, yet knowing where to get started optimising your applications can be difficult. Some of us spend more cash than we should on high performance servers, because there’s that one crucial task running every hour which apparently requires a billion terabytes of memory and a warehouse full of quantum processors, but nobody has yet worked out why. Profile graphs and flame charts can be hard to understand if you’re not familiar with them, and tracing application performance can be daunting. You might not know how easy it can be to make vast improvements on your PHP performance just by gaining a little insight into what’s happening ‘under-the-hood’. In this presentation you’ll see how to hit the ground running with Blackfire.io - from installation, to getting familiar with the profile graph, and finally finishing up with making improvements on an example application (includes pictures of kittens), with which you can go back and practice at home. Once you’ve given it a try on your own code you’ll be clamouring for more.

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