The case study about a Drupal 7 project - an online shopping comparison website. We improved performance and cleaned the hacked Drupal modules.
Drupal development for the world-class team that creates performance-enhancing products
We can improve the performance of a search page by different means. That time I found a solution under the hood of Entity API
In this article, we described the most useful and easy-to-integrate with Drupal search engines. Here is a review of strengths and weaknesses of different systems depending on project requirements