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keys: add (*PublicKey).DecodeBytes benchmark

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Attempts to reuse elliptic.Unmarshal() and elliptic.UnmarshalCompressed() lead
to this:
name                 old time/op    new time/op    delta
PublicDecodeBytes-8    59.5µs ± 2%    61.8µs ± 1%  +3.78%  (p=0.000 n=10+9)

name                 old alloc/op   new alloc/op   delta
PublicDecodeBytes-8    3.99kB ± 0%    4.27kB ± 0%  +6.81%  (p=0.000 n=9+10)

name                 old allocs/op  new allocs/op  delta
PublicDecodeBytes-8       136 ± 0%       135 ± 0%  -0.74%  (p=0.000 n=10+10)

So it makes no sense. Refs. #1319.
This commit is contained in:
Roman Khimov 2021-08-25 19:19:33 +03:00
parent a1d96a7d7d
commit 4803cc15c7
1 changed files with 9 additions and 0 deletions
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9
pkg/crypto/keys/publickey_test.go
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@ -237,3 +237,12 @@ func BenchmarkPublicUncompressedBytes(t *testing.B) {
_ = k.Bytes()
}
}
func BenchmarkPublicDecodeBytes(t *testing.B) {
keyBytes, err := hex.DecodeString("03b209fd4f53a7170ea4444e0cb0a6bb6a53c2bd016926989cf85f9b0fba17a70c")
require.NoError(t, err)
k := new(PublicKey)
for n := 0; n < t.N; n++ {
require.NoError(t, k.DecodeBytes(keyBytes))
}
}