Methods and Best Practices for High Performance eCommerce

Magento HQ Developers Meet up
Methods and Best Practices for High Performance eCommerce.
By Dmitriy Soroka
System Architect at Magento, Inc
20-Sep-10|
1|

Performance Improvement Techniques
Environment
Web Server Configuration
Data Base Configuration
Accelerating PHP
Additional HTTP Requests
Application
Caching
Session Handling
More options
Scaling
Backend Server
Multiple Frontend Servers
Multiple Databases
3rd party integrations
Integration with Solr

Benchmarks Methodology
Siege with different concurrencies
10, 20, 50, 100
Database Size
Sample data, 10K products, 80K products
URLs
CMS Page (home page)
URLs List
Checkout
Results
Requests per second
Orders per hour

Environment optimization
Apache, MySQL, PHP

Apache Configuration
Apache modules – use just necessary modules
KeepAlive directive
mod_deflate - compress content before sending it to the browser
Eliminating directory structure scans for the .htaccess

MySQL Configuration
innodb_buffer_pool_size
Combined web and db server, 6 GB RAM – 2-3 GB
Dedicated database server, 6 GB RAM – 5 GB
Dedicated database server, 12 GB RAM – 10 GB
innodb_thread_concurrency
2 * [numberofCPUs] + 2
table_cache is the number of tables that can be simultaneously opened by MySQL
query_cache_size (64 Mb)
query_cache_limit (2 Mb)

Optimization Results

Accelerating PHP
File system structure optimization
APC
eAccelerator
Zend Optimize
Xcache

Magento Compiler

PHP Accelerators

Additional HTTP Requests
CSS
Java Script
Images

Application optimization
Cache, Sessions

Cache Types

Cache Enables vs. Cache disabled

Cache Storages
Memory Based
File System Based
File
Sqlite
Database (MySQL)
ZendServer disk
APC
Memcached
xCache
eAccelerator
ZendServer Memory

Two Levels Backend
Two Levels Backend
Slow level
Fast level

Cache Configuration
<config>
<global>
<cache>

<backend></backend>
<prefix|id_prefix></prefix|id_prefix>
<backend_options>
<option_code1>option_value1</option_code1>
</backend_options>
<frontend_options>
</frontend_options>
<memcached>
<servers>....</servers>
<memcached>
</cache>
</global>
</config>

Slow Backend
<config>
<global>
<cache>
<slow_backend>database</slow_backend>
<slow_backend_options>
</slow_backend_options>
</cache>
</global>
</config>

Storages Benchmark

Full Page Cache (CMS page)

Full Page Cache (urls list)

Session Storage
Files Memcached Data Base

More…
Flat Catalog
Sales Archive
Backend processes (cron, indexes)
Theme complexity

scaling
Hardware, Web Nodes, Data Base

Hardware

Separate Backend Server
Data Base
Handle admin users
Process backend activity (cron)
Pre generate Full Page Cache
Handle media queries

Multiple Web Nodes (browsing)

Multiple Web Nodes (checkout)

Data Base
config/global/resources
<default_setup>
<connection>
<host><![CDATA[master]]></host>
<username><![CDATA[writeuser]]></username>
<password><![CDATA[writeuserpwd]]></password>
<dbname><![CDATA[magento]]></dbname>
<active>1</active>
</connection>
</default_setup>
<default_read>
<connection>
<use></use>
<host><![CDATA[slave]]></host>
<username><![CDATA[readuser]]></username>
<password><![CDATA[readuserpwd]]></password>
<dbname><![CDATA[magento]]></dbname>
<model>mysql4</model>
<initStatements>SET NAMES utf8</initStatements>
<type>pdo_mysql</type>
<active>1</active>
</connection>
</default_read>

3rd party integrations
Solr

Using solr
Spell checking
Search suggestions
Morphology
Category navigation
Facet navigation

Benchmark Results

Magento HQ Developers Meet up
Thank You
Email: dmitriy.soroka@varien.com

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Methods and Best Practices for High Performance eCommerce

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