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James Tucker d0f3fa7d7e util/fastuuid: add a more efficient uuid generator ... This still generates github.com/google/uuid UUID objects, but does so using a ChaCha8 CSPRNG from the stdlib rand/v2 package. The public API is backed by a sync.Pool to provide good performance in highly concurrent operation. Under high load the read API produces a lot of extra garbage and overhead by way of temporaries and syscalls. This implementation reduces both to minimal levels, and avoids any long held global lock by utilizing sync.Pool. Updates tailscale/corp#18266 Updates tailscale/corp#19054 Signed-off-by: James Tucker <james@tailscale.com>		2 years ago
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fastuuid.go	util/fastuuid: add a more efficient uuid generator	2 years ago
fastuuid_test.go	util/fastuuid: add a more efficient uuid generator	2 years ago