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tailscale/internal
Josh Bleecher Snyder a2d7a2aeb1 internal/deephash: use MapIter.Set{Key,Value}
To get the benefit of this optimization requires help from the Go toolchain.
The changes are upstream at https://golang.org/cl/320929,
and have been pulled into the Tailscale fork at
728ecc58fd.
It also requires building with the build tag tailscale_go.

name              old time/op    new time/op    delta
Hash-8              14.0µs ± 0%    13.6µs ± 0%   -2.88%  (p=0.008 n=5+5)
HashMapAcyclic-8    24.3µs ± 1%    21.2µs ± 1%  -12.47%  (p=0.008 n=5+5)

name              old alloc/op   new alloc/op   delta
Hash-8              2.16kB ± 0%    1.58kB ± 0%  -27.01%  (p=0.008 n=5+5)
HashMapAcyclic-8    2.53kB ± 0%    0.15kB ± 0%  -93.99%  (p=0.008 n=5+5)

name              old allocs/op  new allocs/op  delta
Hash-8                77.0 ± 0%      49.0 ± 0%  -36.36%  (p=0.008 n=5+5)
HashMapAcyclic-8       202 ± 0%         4 ± 0%  -98.02%  (p=0.008 n=5+5)

Signed-off-by: Josh Bleecher Snyder <josh@tailscale.com>

setkey
4 years ago
..
deephash internal/deephash: use MapIter.Set{Key,Value} 4 years ago
tooldeps Add tooldeps package to keep depaware pinned in go.mod. 4 years ago