forked from forks/go-ethereum
d3cc618951
This PR uses various tweaks and tricks to make the stacktrie near
alloc-free.
```
[user@work go-ethereum]$ benchstat stacktrie.1 stacktrie.7
goos: linux
goarch: amd64
pkg: github.com/ethereum/go-ethereum/trie
cpu: 12th Gen Intel(R) Core(TM) i7-1270P
│ stacktrie.1 │ stacktrie.7 │
│ sec/op │ sec/op vs base │
Insert100K-8 106.97m ± 8% 88.21m ± 34% -17.54% (p=0.000 n=10)
│ stacktrie.1 │ stacktrie.7 │
│ B/op │ B/op vs base │
Insert100K-8 13199.608Ki ± 0% 3.424Ki ± 3% -99.97% (p=0.000 n=10)
│ stacktrie.1 │ stacktrie.7 │
│ allocs/op │ allocs/op vs base │
Insert100K-8 553428.50 ± 0% 22.00 ± 5% -100.00% (p=0.000 n=10)
```
Also improves derivesha:
```
goos: linux
goarch: amd64
pkg: github.com/ethereum/go-ethereum/core/types
cpu: 12th Gen Intel(R) Core(TM) i7-1270P
│ derivesha.1 │ derivesha.2 │
│ sec/op │ sec/op vs base │
DeriveSha200/stack_trie-8 477.8µ ± 2% 430.0µ ± 12% -10.00% (p=0.000 n=10)
│ derivesha.1 │ derivesha.2 │
│ B/op │ B/op vs base │
DeriveSha200/stack_trie-8 45.17Ki ± 0% 25.65Ki ± 0% -43.21% (p=0.000 n=10)
│ derivesha.1 │ derivesha.2 │
│ allocs/op │ allocs/op vs base │
DeriveSha200/stack_trie-8 1259.0 ± 0% 232.0 ± 0% -81.57% (p=0.000 n=10)
```
---------
Co-authored-by: Gary Rong <garyrong0905@gmail.com>
95 lines
2.2 KiB
Go
95 lines
2.2 KiB
Go
// Copyright 2022 The go-ethereum Authors
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// This file is part of the go-ethereum library.
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//
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// The go-ethereum library is free software: you can redistribute it and/or modify
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// it under the terms of the GNU Lesser General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// The go-ethereum library is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU Lesser General Public License for more details.
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//
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// You should have received a copy of the GNU Lesser General Public License
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// along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
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package trie
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import (
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"github.com/ethereum/go-ethereum/rlp"
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)
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func nodeToBytes(n node) []byte {
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w := rlp.NewEncoderBuffer(nil)
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n.encode(w)
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result := w.ToBytes()
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w.Flush()
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return result
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}
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func (n *fullNode) encode(w rlp.EncoderBuffer) {
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offset := w.List()
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for _, c := range n.Children {
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if c != nil {
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c.encode(w)
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} else {
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w.Write(rlp.EmptyString)
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}
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}
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w.ListEnd(offset)
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}
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func (n *fullnodeEncoder) encode(w rlp.EncoderBuffer) {
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offset := w.List()
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for _, c := range n.Children {
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if c == nil {
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w.Write(rlp.EmptyString)
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} else if len(c) < 32 {
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w.Write(c) // rawNode
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} else {
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w.WriteBytes(c) // hashNode
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}
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}
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w.ListEnd(offset)
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}
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func (n *shortNode) encode(w rlp.EncoderBuffer) {
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offset := w.List()
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w.WriteBytes(n.Key)
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if n.Val != nil {
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n.Val.encode(w)
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} else {
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w.Write(rlp.EmptyString)
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}
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w.ListEnd(offset)
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}
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func (n *extNodeEncoder) encode(w rlp.EncoderBuffer) {
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offset := w.List()
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w.WriteBytes(n.Key)
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if n.Val == nil {
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w.Write(rlp.EmptyString)
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} else if len(n.Val) < 32 {
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w.Write(n.Val) // rawNode
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} else {
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w.WriteBytes(n.Val) // hashNode
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}
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w.ListEnd(offset)
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}
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func (n *leafNodeEncoder) encode(w rlp.EncoderBuffer) {
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offset := w.List()
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w.WriteBytes(n.Key) // Compact format key
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w.WriteBytes(n.Val) // Value node, must be non-nil
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w.ListEnd(offset)
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}
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func (n hashNode) encode(w rlp.EncoderBuffer) {
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w.WriteBytes(n)
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}
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func (n valueNode) encode(w rlp.EncoderBuffer) {
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w.WriteBytes(n)
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}
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