Rails 7.1: Performance implementing JSON serialization of large ActiveRecord collections
I need help solving I'm wondering if anyone has experience with After trying multiple solutions online, I still can't figure this out. I'm experiencing important performance optimization when serializing large ActiveRecord collections to JSON in my Rails 7.1 application. Specifically, I'm trying to render a list of 10,000 user records along with their associated profile data. The question arises when I try to serialize this data into JSON format for an API response. The response times are unacceptably high, often exceeding 10 seconds, and I'm seeing this warning in the logs: `ActiveSupport::Notifications::Instrumenter: Exception raised while instrumenting: ActiveSupport::JSON::EncodingError`. My current code looks like this: ```ruby class UsersController < ApplicationController def index users = User.includes(:profile).all render json: users, include: :profile end end ``` I’ve tried using `select` to limit the fields being selected, as well as limiting the number of records processed in a single request, but the performance is still not where it needs to be. I also attempted to paginate the records using the `kaminari` gem, but the same issues persisted. Additionally, I verified that my database indexes are correctly set up, especially on foreign keys. I’m using PostgreSQL as my database. Would switching to a more efficient serialization approach, like the `fast_jsonapi` gem, help with this scenario? Any specific recommendations on how to optimize JSON serialization for large datasets would be greatly appreciated. My development environment is Windows. Any help would be greatly appreciated! For context: I'm using Ruby on Linux. I'd really appreciate any guidance on this. The stack includes Ruby and several other technologies. I'm coming from a different tech stack and learning Ruby.