Making Tailscale Faster
The gist
Tailscale announced performance improvements, including roughly 5% speed-up and netmap caching.
The changes target slow startup and throughput, with some shipping in v1.104.
How it unfolded
- Sep 22, 2026Tailscale published the blog post "We're making Tailscale faster," detailing reduced memory overhead for small packets (roughly 5% speed-up), a new multi-queue architecture for subnet routers, app connectors and exit nodes, throughput gains from Linux's writev, and netmap caching.
- Sep 22, 2026Tailscale said memory reduction and netmap caching (via feature flag) are expected in the v1.104 client, with multi-queue and additional throughput gains planned for later releases.
- Sep 23, 2026A Hacker News discussion "Making Tailscale Faster" was posted by yarapavan, reaching 43 points and 15 comments.