mirror of
https://github.com/ethereum/go-ethereum.git
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70 lines
2.1 KiB
Go
70 lines
2.1 KiB
Go
// Copyright 2017 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 rawdb
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import (
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"bytes"
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"crypto/rand"
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"testing"
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"github.com/ethereum/go-ethereum/crypto"
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"github.com/ethereum/go-ethereum/ethdb"
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)
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func setupRangeDB(b *testing.B, db ethdb.KeyValueStore, numEntries int) ([]byte, []byte) {
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b.Helper()
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var firstKey, lastKey []byte
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for i := 0; i < numEntries; i++ {
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key := make([]byte, 32)
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val := make([]byte, 64)
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if _, err := rand.Read(key); err != nil {
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b.Fatalf("Failed to generate random key: %v", err)
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}
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if _, err := rand.Read(val); err != nil {
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b.Fatalf("Failed to generate random value: %v", err)
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}
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hashKey := crypto.Keccak256Hash(key)
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if err := db.Put(hashKey.Bytes(), val); err != nil {
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b.Fatalf("Failed to put data: %v", err)
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}
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if i == 0 {
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firstKey = hashKey.Bytes()
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}
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if i == numEntries-1 {
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lastKey = hashKey.Bytes()
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}
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}
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if bytes.Compare(firstKey, lastKey) > 0 {
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firstKey, lastKey = lastKey, firstKey
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}
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return firstKey, append(lastKey, 0) // append 0 to make range exclusive for lastKey
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}
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func BenchmarkSafeDeleteRange(b *testing.B) {
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db := NewMemoryDatabase()
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defer db.Close()
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const numEntries = 10000
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b.ResetTimer()
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for i := 0; i < b.N; i++ {
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start, end := setupRangeDB(b, db, numEntries)
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if err := SafeDeleteRange(db, start, end, true, func(bool) bool { return false }); err != nil {
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b.Fatalf("Failed to delete range: %v", err)
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}
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}
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}
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