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Intro

ResearchGate SCIENTIFIC NETWORK

Step 1

Graphing it

Can we measure more?

Load balancer

More fine grained metrics

Define goals

Step 2

Profiling

Webgrind

DEMO

Use it locally on your dev machine

XHProf

php-meminfo

Symfony Debug Toolbar

Extend it

Step 3

Fix it

That's something you have to do

Keep up to date

Speed matters

Some hints on better performance

The obvious

GZIP

DB Indexes

Minify JS

Concatenate JS/ CSS/...

Correct caching headers

Opcache

Data Caching

APCU

memcached

Minimize redirects

Check image compression

Check YSlow, Pagespeed

DNS prefetch

Move logic to async workers

The "crazy" stuff

Varnish

Load content asynchronously

Flush content early

Move logic to shutdown handlers

function.php

request.php

Promises / Futures

pushState

Description:

Explore profiling techniques and performance optimization strategies for PHP applications in this conference talk from PHP UK 2014. Learn how to measure web application performance, track user-perceived speed in the browser, and analyze issues using tools like Xdebug, XHProf, and the Symfony Debug Toolbar. Discover methods to decrease load times, including GZIP compression, database indexing, JS minification, proper caching headers, and asynchronous content loading. Gain insights into advanced techniques such as using Varnish, implementing pushState, and leveraging promises and futures to further enhance application speed and responsiveness.

Profiling PHP Applications

PHP UK Conference

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#Conference Talks #PHP UK Conference #Computer Science #Load Balancing #Programming #Programming Languages #PHP #Xdebug