https://www.compilemymind.com/tags/parallelism/ Recent content in Parallelism on Compile My Mind Hugo en Thu, 20 Aug 2026 15:12:50 +0300 https://www.compilemymind.com/posts/concurrency-vs-parallelism/ Thu, 20 Aug 2026 15:12:50 +0300 https://www.compilemymind.com/posts/concurrency-vs-parallelism/ <p>A service feels slow, so the team gives it more workers.</p> <p>The request queue becomes shorter, but CPU usage stays almost unchanged. Someone adds even more workers. Now memory consumption rises, logs arrive in a confusing order, and the slowest requests are slower than before.</p> <p>The mistake was not using too few workers. It was treating two different ideas as if they promised the same result.</p> <p><strong>Concurrency is about allowing multiple tasks to make progress during the same period. Parallelism is about executing multiple tasks at the same instant.</strong></p>