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tailscale/cmd/derper
Josh Bleecher Snyder b9c92b90db cmd/derper: optimize handleBootstrapDNS
Do json formatting once, rather than on every request.

Use an atomic.Value.

name                   old time/op    new time/op    delta
HandleBootstrapDNS-10    6.35µs ± 0%    0.10µs ± 4%  -98.35%  (p=0.000 n=14+15)

name                   old alloc/op   new alloc/op   delta
HandleBootstrapDNS-10    3.20kB ± 0%    0.42kB ± 0%  -86.99%  (p=0.000 n=12+15)

name                   old allocs/op  new allocs/op  delta
HandleBootstrapDNS-10      41.0 ± 0%       3.0 ± 0%  -92.68%  (p=0.000 n=15+15)

Signed-off-by: Josh Bleecher Snyder <josh@tailscale.com>
4 years ago
..
bootstrap_dns.go cmd/derper: optimize handleBootstrapDNS 4 years ago
bootstrap_dns_test.go cmd/derper: add BenchmarkHandleBootstrapDNS 4 years ago
cert.go cmd/derper: in manual cert mode, don't discard error from VerifyHostname 4 years ago
derper.go cmd/derper: add a rate limiter for accepting new connection (#3908) 4 years ago
derper_test.go cmd/derper: refactor STUN path for testing, add serverSTUN benchmark 4 years ago
mesh.go derp: use new node key type. 4 years ago
websocket.go cmd/derper, derp/derphttp: add websocket support 4 years ago