InfoQ - Concurrency - News

How Solaris' Turnstile Influenced the Modern System Designs of Web Browsers and Language Runtimes

Olimpiu Pop — Tue, 15 Sep 2026 06:06:00 GMT

Sun's Solaris influenced modern systems engineering, with key innovations like the Slab Allocator for efficient memory management, OpenZFS for advanced storage, and DTrace for observability. Its turnstile mechanism addressed issues with mutexes, promoting lean locking designs that are reflected in contemporary programming languages and web browsers, enhancing performance and memory efficiency.

By Olimpiu Pop

Netflix Reworks Conductor for 420 Million Monthly Workflow Executions and 10X Larger Workflows

Leela Kumili — Fri, 11 Sep 2026 14:17:00 GMT

Netflix has reworked its Conductor workflow orchestration engine to handle larger workloads, increasing supported workflow size from about 2,500 to 30,000 tasks and reducing p99 workflow evaluation latency by about 40%. Conductor 4.0 separates workflow metadata from task data, moves evaluation to asynchronous processing, and introduces dynamic worker allocation and concurrency controls.

By Leela Kumili