mirror of
https://git.zx2c4.com/wireguard-go
synced 2025-09-18 20:57:50 +02:00
9e7529c3d2
Reduce allocations by eliminating byte reader, hand-rolled decoding and
reusing message structs.
Synthetic benchmark:
var msgSink MessageInitiation
func BenchmarkMessageInitiationUnmarshal(b *testing.B) {
packet := make([]byte, MessageInitiationSize)
reader := bytes.NewReader(packet)
err := binary.Read(reader, binary.LittleEndian, &msgSink)
if err != nil {
b.Fatal(err)
}
b.Run("binary.Read", func(b *testing.B) {
b.ReportAllocs()
for range b.N {
reader := bytes.NewReader(packet)
_ = binary.Read(reader, binary.LittleEndian, &msgSink)
}
})
b.Run("unmarshal", func(b *testing.B) {
b.ReportAllocs()
for range b.N {
_ = msgSink.unmarshal(packet)
}
})
}
Results:
│ - │
│ sec/op │
MessageInitiationUnmarshal/binary.Read-8 1.508µ ± 2%
MessageInitiationUnmarshal/unmarshal-8 12.66n ± 2%
│ - │
│ B/op │
MessageInitiationUnmarshal/binary.Read-8 208.0 ± 0%
MessageInitiationUnmarshal/unmarshal-8 0.000 ± 0%
│ - │
│ allocs/op │
MessageInitiationUnmarshal/binary.Read-8 2.000 ± 0%
MessageInitiationUnmarshal/unmarshal-8 0.000 ± 0%
Signed-off-by: Alexander Yastrebov <yastrebov.alex@gmail.com>
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
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|---|---|---|
| .. | ||
| allowedips_rand_test.go | ||
| allowedips_test.go | ||
| allowedips.go | ||
| bind_test.go | ||
| channels.go | ||
| constants.go | ||
| cookie_test.go | ||
| cookie.go | ||
| device_test.go | ||
| device.go | ||
| devicestate_string.go | ||
| endpoint_test.go | ||
| indextable.go | ||
| ip.go | ||
| kdf_test.go | ||
| keypair.go | ||
| logger.go | ||
| mobilequirks.go | ||
| noise_test.go | ||
| noise-helpers.go | ||
| noise-protocol.go | ||
| noise-types.go | ||
| peer.go | ||
| pools_test.go | ||
| pools.go | ||
| queueconstants_android.go | ||
| queueconstants_default.go | ||
| queueconstants_ios.go | ||
| queueconstants_windows.go | ||
| race_disabled_test.go | ||
| race_enabled_test.go | ||
| receive.go | ||
| send.go | ||
| sticky_default.go | ||
| sticky_linux.go | ||
| timers.go | ||
| tun.go | ||
| uapi.go | ||