Some friends of mine mentioned that running Tailscale on their phones kills their battery life. I don't use Tailscale on my phone, but I do on my desktop, so I thought I'd try instrumenting it!

Now I'm just me, but ~200 syscalls per second to route two packets total over the instrumentation period seems... suboptimal

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One of its threads seems to do nothing but spin on nanosleep and a futex, periodically rechecking its own pid

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