Vyacheslav Fedorenko

This is the most comprehensive description of the Magento 1.3.x, 1.4.x, 1.5.x, 1.6.x and 1.7.x upgrade process.

Additionally It contains step-by-step instructions and troubleshooting information.

In my previous article I wrote about performance issues when you have many attribute options for configurable attribute. Here I will provide you with several tips on how to increase performance if you have configurable products with many associated products (100 associated products and more).

If you have multi-stores configured in your Magento and you want to have single cart for all multi-stores this article is what you need.

All your multi-stores will be not separate websites, they all will have single cart (share cart content between multi-stores).
Also your customers will have single account for all multi-stores.
 

Using our methodology and our Magento import scripts you will be able to successfully transfer customers data, categories data, products data from X-Cart to Magento platform.

Besides data migration process description we published here special Magento extension. Our extension will allow you and your customers to see X-Cart orders in your Magento admin and storefront. You can download the Magento extension and import scripts here.

If you use configurable products in your Magento store and your super attribute have a lot of options (thousands of options), you can experience the following performance issues:

• Loading time of a configurable product page is more than other pages (especially when Magento cache is disabled)
• When you add a configurable product to store cart, cart page become slow
• When configurable product is added to store cart, all store pages become slow

In this article I will show how to debug such issues and how to fix the speed issue I described above.

The Tuning Primer is a shell script that allows you to review the MySQL settings and make adjustments to increase Magento database performance and stability. The script will analyze MySQL statistics and provide you with recommendations on how to fine-tune your MySQL server.

APC (Alternative PHP cache) is a free opcode cache for PHP, which optimize PHP intermediate code. APC engine cache the compiled bytecode of PHP scripts to avoid the overhead of parsing and compiling source code on each request.