Queueing Theory on Jaehyeon Kimhttps://jaehyeon.me/tags/queueing-theory/Recent content in Queueing Theory on Jaehyeon KimHugo -- gohugo.ioenCopyright © 2023-2026 Jaehyeon Kim. All Rights Reserved.Wed, 28 Oct 2026 00:00:00 +0000From dynamic-des to desflow: What Changed in Five Releaseshttps://jaehyeon.me/blog/2026-10-28-desflow-0-25-0/Wed, 28 Oct 2026 00:00:00 +0000https://jaehyeon.me/blog/2026-10-28-desflow-0-25-0/A simulation is a small model of a real system that a computer plays forward in time. Take a shop that packs orders. Orders arrive at random moments, packers take one at a time, and packing takes longer for some orders than for others. When orders arrive faster than the packers can finish them, a queue forms. A simulation shows how long that queue gets and how long orders wait, without running the real shop.

The last post in this series showed such a model written as a YAML file and run with one command, with dynamic-des 0.16.0 to 0.19.0. The package is now called desflow. It still sends its events to Kafka, Redis, PostgreSQL, Parquet and Iceberg, and it can now also answer the question a simulation is usually built for, such as “would a third packer keep the wait under 2 seconds?”. Everything below runs on your own machine, without Docker.

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