About Kite Systems and myself

Performance

Caching

Scaling

Optimizing

Agenda

Kite Systems is an Agile development house which means the client is actively involved all the way through the development process. We build high quality, secure platforms using Java J2EE, Microsoft .NET, Ruby on Rails, PHP and Python.

Join Us

Web Developer/themer at Kite Systems Inc.

Drupal developer since 2010

Drupal PH kids mentor

About myself, Gerald Villorente

Why Drupal is Slow?

Short response time (milliseconds per page)

High throughput (rate of processing work, e.g. page per second)

Low utilization of computing resources (CPU, memory, disk, network)

Performance

Improving system performance from what it is at present

Faster response to the end user per page

Handle more page views

Minimize downtime

Our Objectives

Each objective is different, but they can be related

Everyone wants them, but not willing to PAY!

Why Drupal is slow?

Why Drupal is slow?

Drupal is not really slow at all

Why Drupal is slow?

Drupal is not really slow at all

Server (web server, SQL server)

Why Drupal is slow?

Drupal is not really slow at all

Server (web server, SQL server)

Drupal (caching, aggregations, modules, 404)

Why Drupal is slow?

Drupal is not really slow at all

Server (web server, SQL server)

Drupal (caching, aggregations, modules, 404)

Hardware (memory, CPU) - Shared hosting- Dedicated/VPS- Local Development Environment

Benchmarking Apache with ab

Rule of Thumb:Allocate 50% of the available physical memory to Apache. So, 250M / 20M per process = 12 httpd processes maximum.

Server: Optimization

ab -n 500 -c 50 http://mydomain.com/index.php

Load Average

Demo of Drupal Modules

Varnish

Memcache

Boost

Drupal Internal Caching

Caching

Cache Storage

Varnish is an HTTP accelerator designed for content-heavy dynamic web sites. In contrast to other HTTP accelerators, such as Squid, which began life as a client-side cache, or Apache and nginx, which are primarily origin servers, Varnish was designed as an HTTP accelerator.

Varnish

Varnish

The Alternative PHP Cache (APC) is a free and open opcode cache for PHP. Its goal is to provide a free, open, and robust framework for caching and optimizing PHP intermediate code.

APC

APC

APC

Free & open source, high-performance, distributed memory object caching system, generic in nature, but intended for use in speeding up dynamic web applications by alleviating database load.

Memcache

Memcache

Boost provides static page caching for Drupal enabling a very significant performance and scalability boost for sites that receive mostly anonymous traffic .

Boost

Boost

Load balancer

Database Cluster

Scaling