Benchmarks on Tony Metzidis https://tonym.us/tag/benchmarks.html Recent content in Benchmarks on Tony Metzidis Hugo en-us Wed, 07 Oct 2026 00:00:00 +0000 WSL2 vs WSL3 Benchmarks: Performance, Memory, and Syscall Scaling https://tonym.us/wsl2-vs-wsl3-benchmarks.html Wed, 07 Oct 2026 00:00:00 +0000 https://tonym.us/wsl2-vs-wsl3-benchmarks.html <p>With the release of the WSL 3.x stack, Microsoft bumped the default virtualization runtime and advanced the shipped guest kernel from the 6.6 LTS branch up to 6.18.</p> <p>WSL upgrades often claim generalized performance gains, but marketing bullet points rarely translate directly to developer workloads. To see what actually changed under the hood, I ran side-by-side benchmark suites comparing <strong>WSL 2.6.3.0</strong> (Linux kernel <code>6.6.87.2</code>) against <strong>WSL 3.0.2.0</strong> (Linux kernel <code>6.18.40.1</code>).</p>