July 2026
Engineering articles from the Sandbox0 team, grouped by publication date.
View all of 2026How We Cut gVisor Metrics CPU by 72% at 424 Sandboxes
At high sandbox density, every CRI stats request launched a runsc subprocess before calling an existing gVisor control RPC. This post explains how Sandbox0 removed that process boundary, kept the same metrics contract, and reduced average node CPU from 60.68% to 16.70% in a matched production comparison.