The size of the database and the program’s structure are two important considerations in application performance. Let’s review factors that slow down application performance and the architectural solutions and strategies that can help.  The following factors hamper ruby on rails application performance:

1. Choosing a container for a slow session
2. The usage of inefficient help methods is increasing.
3. Task execution on a request-by-request basis rather than calling everything required upon launch  frequently and excessively reading from databases
4. Performing the exact computation again and over while processing requests

You may easily improve the efficiency of Ruby on Rails apps if you focus on the issue areas indicated above. Better session container:

You should avoid utilizing class-level caching if you use the same data frequently throughout single process requests. You can just read the data from the cache, which is substantially quicker and eliminates the need for many calculations. At the start, request independent computations:

Query optimization: you can cache data in a variable in a class of applications if it does not change or if any update needs server startup. Another alternative is to use the mute function in Ruby on Rails to deactivate logging on a per-action basis.

Model classes in Rails have well-defined relationships. The built-in created accessors, on the other hand, are not performance-optimized. The produced accessor methods generate N number of extra database requests, reducing the application’s performance. This speed problem may be solved by adding author to your query parameters that result in a single SQL statement and the creation of author objects immediately. Using slow helpers as little as possible:

To interact with URLs, all Rails helpers need the routing module. It takes a long time to invoke the routing module and go through all the routes in the route file. Instead of using the slow helper, you may code the component directly in HTML. Database optimization:

Interacting with a server takes time, and often accessing the database reduces the ruby on rails application’s performance significantly. One technique to increase the performance of the RoR application is to reduce the number of SQL queries. The alternative option is to optimize the database, which may be accomplished by doing the following steps:

1. Remove any indexes that are no longer in use.

2. Create indexes for private and foreign keys and fields used in filter statements, if needed.

3. Optimize and revise SQL queries

4. Divide huge tables into sections.

5. Make use of saved procedures.

6. Make use of eager association loading.

7. When transactions aren’t required, don’t utilize them.

These are only a few architectural ideas and strategies that can help you increase the performance of your application. After making efforts to improve the application’s performance, evaluate it.