https://blog.iaroslavtsev.uk/tags/ruby/Recent content in Ruby on The Pragmatic EngeneerHugo -- 0.152.2en-us2025 Aleksei IaroslavtsevSun, 21 Sep 2025 17:27:46 +0200https://blog.iaroslavtsev.uk/posts/a-guide-to-full-stack-rails-optimization/Wed, 27 Aug 2025 00:00:00 +0000https://blog.iaroslavtsev.uk/posts/a-guide-to-full-stack-rails-optimization/A deep-dive case study on optimizing a Rails app, tackling everything from slow data imports (using bulk inserts) to sluggish page loads (fixing N+1 queries and adding database indexes). We cut import times by 40% and page loads by over 90%.https://blog.iaroslavtsev.uk/posts/a-deep-dive-into-ruby-concurrency-case-study/Wed, 27 Aug 2025 00:00:00 +0000https://blog.iaroslavtsev.uk/posts/a-deep-dive-into-ruby-concurrency-case-study/An architectural breakdown of solving a concurrency challenge in Ruby, moving from a naive sequential model to a robust, scalable pattern using structured concurrency.https://blog.iaroslavtsev.uk/posts/from-hours-to-seconds-a-systematic-guide-to-ruby-performance-optimization/Wed, 27 Aug 2025 00:00:00 +0000https://blog.iaroslavtsev.uk/posts/from-hours-to-seconds-a-systematic-guide-to-ruby-performance-optimization/A step-by-step walkthrough of how we optimized a Ruby script that was too slow to run, reducing its runtime to under 30 seconds using a methodical, profile-driven approach.https://blog.iaroslavtsev.uk/posts/taming-rubys-memory-bloat-a-guide-to-processing-large-files/Wed, 27 Aug 2025 00:00:00 +0000https://blog.iaroslavtsev.uk/posts/taming-rubys-memory-bloat-a-guide-to-processing-large-files/A case study on how we reduced the memory footprint of a data-processing Ruby script from over 200MB to under 70MB by ditching CSV.read and adopting a streaming, batch-processing approach.