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Filtering for leaf nodes was missing from #32388, which means that even the root done was reported, which made little sense for the bloatnet data processing we want to do.
117 lines
3.6 KiB
Go
117 lines
3.6 KiB
Go
// Copyright 2025 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 stateless
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import (
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"maps"
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"slices"
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"sort"
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"strings"
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"github.com/ethereum/go-ethereum/common"
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"github.com/ethereum/go-ethereum/metrics"
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)
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var (
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accountTrieDepthAvg = metrics.NewRegisteredGauge("witness/trie/account/depth/avg", nil)
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accountTrieDepthMin = metrics.NewRegisteredGauge("witness/trie/account/depth/min", nil)
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accountTrieDepthMax = metrics.NewRegisteredGauge("witness/trie/account/depth/max", nil)
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storageTrieDepthAvg = metrics.NewRegisteredGauge("witness/trie/storage/depth/avg", nil)
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storageTrieDepthMin = metrics.NewRegisteredGauge("witness/trie/storage/depth/min", nil)
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storageTrieDepthMax = metrics.NewRegisteredGauge("witness/trie/storage/depth/max", nil)
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)
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// depthStats tracks min/avg/max statistics for trie access depths.
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type depthStats struct {
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totalDepth int64
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samples int64
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minDepth int64
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maxDepth int64
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}
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// newDepthStats creates a new depthStats with default values.
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func newDepthStats() *depthStats {
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return &depthStats{minDepth: -1}
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}
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// add records a new depth sample.
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func (d *depthStats) add(n int64) {
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if n < 0 {
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return
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}
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d.totalDepth += n
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d.samples++
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if d.minDepth == -1 || n < d.minDepth {
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d.minDepth = n
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}
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if n > d.maxDepth {
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d.maxDepth = n
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}
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}
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// report uploads the collected statistics into the provided gauges.
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func (d *depthStats) report(maxGauge, minGauge, avgGauge *metrics.Gauge) {
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if d.samples == 0 {
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return
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}
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maxGauge.Update(d.maxDepth)
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minGauge.Update(d.minDepth)
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avgGauge.Update(d.totalDepth / d.samples)
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}
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// WitnessStats aggregates statistics for account and storage trie accesses.
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type WitnessStats struct {
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accountTrie *depthStats
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storageTrie *depthStats
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}
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// NewWitnessStats creates a new WitnessStats collector.
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func NewWitnessStats() *WitnessStats {
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return &WitnessStats{
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accountTrie: newDepthStats(),
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storageTrie: newDepthStats(),
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}
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}
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// Add records trie access depths from the given node paths.
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// If `owner` is the zero hash, accesses are attributed to the account trie;
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// otherwise, they are attributed to the storage trie of that account.
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func (s *WitnessStats) Add(nodes map[string][]byte, owner common.Hash) {
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// Extract paths from the nodes map
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paths := slices.Collect(maps.Keys(nodes))
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sort.Strings(paths)
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for i, path := range paths {
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// If current path is a prefix of the next path, it's not a leaf.
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// The last path is always a leaf.
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if i == len(paths)-1 || !strings.HasPrefix(paths[i+1], paths[i]) {
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if owner == (common.Hash{}) {
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s.accountTrie.add(int64(len(path)))
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} else {
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s.storageTrie.add(int64(len(path)))
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}
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}
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}
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}
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// ReportMetrics reports the collected statistics to the global metrics registry.
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func (s *WitnessStats) ReportMetrics() {
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s.accountTrie.report(accountTrieDepthMax, accountTrieDepthMin, accountTrieDepthAvg)
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s.storageTrie.report(storageTrieDepthMax, storageTrieDepthMin, storageTrieDepthAvg)
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}
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