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Brad FitzpatrickandBrad Fitzpatrick 36b1b4af2f wgengine/filter: split local+logging lookups by IPv4-vs-IPv6

If we already know it's an incoming IPv4 packet, no need to match
against the set of IPv6s and vice versa.

    goos: darwin
    goarch: arm64
    pkg: tailscale.com/wgengine/filter
                                         │   before    │                after                │
                                         │   sec/op    │   sec/op     vs base                │
    FilterMatch/not-local-v4-8             21.40n ± 3%   16.04n ± 1%  -25.09% (p=0.000 n=10)
    FilterMatch/not-local-v6-8             20.75n ± 9%   15.71n ± 0%  -24.31% (p=0.000 n=10)
    FilterMatch/no-match-v4-8              81.37n ± 1%   78.57n ± 3%   -3.43% (p=0.005 n=10)
    FilterMatch/no-match-v6-8              77.73n ± 2%   73.71n ± 3%   -5.18% (p=0.002 n=10)
    FilterMatch/tcp-not-syn-v4-8           21.41n ± 3%   16.86n ± 0%  -21.25% (p=0.000 n=10)
    FilterMatch/tcp-not-syn-v4-no-logs-8   10.04n ± 0%   10.05n ± 0%        ~ (p=0.446 n=10)
    geomean                                29.07n        25.05n       -13.84%

Updates #12486

Change-Id: I70e5024af03893327d26629a994ab2aa9811f4f3
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>

2024-06-16 10:57:01 -07:00

bench

ipn/ipnlocal, all: plumb health trackers in tests

2024-05-07 22:22:10 -07:00

capture

various: add golangci-lint, fix issues (#7905 )

2023-04-17 18:38:24 -04:00

filter

wgengine/filter: split local+logging lookups by IPv4-vs-IPv6

2024-06-16 10:57:01 -07:00

magicsock

wgengine/magicsock: use math/rands/v2