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d6f222a081
Blocks heavy in precompile calls (e.g. Aztec's proof settlement txs) spend most of their processing time on operations (ECMUL, pairings, KZG point evaluation, MODEXP) that the state prefetcher has already computed and thrown away. This PR adds a precompile result cache shared between the prefetcher and block processing (and the miner), following the JumpDestCache pattern. Note that cached precompiles are keyed by address and input, with entries partitioned by the active precompile set, so a fork that changes the behavior behind an address can never be served results from before it. --------- Co-authored-by: Gary Rong <garyrong0905@gmail.com>
45 lines
1.5 KiB
Go
45 lines
1.5 KiB
Go
// Copyright 2023 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 vm
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import (
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"testing"
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"github.com/ethereum/go-ethereum/common"
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"github.com/ethereum/go-ethereum/params"
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)
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func FuzzPrecompiledContracts(f *testing.F) {
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// Create list of addresses
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var addrs []common.Address
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for k := range allPrecompiles {
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addrs = append(addrs, k)
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}
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f.Fuzz(func(t *testing.T, addr uint8, input []byte) {
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a := addrs[int(addr)%len(addrs)]
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p := allPrecompiles[a]
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gas := p.RequiredGas(input)
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if gas > 10_000_000 {
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return
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}
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inWant := string(input)
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RunPrecompiledContract(nil, p, a, input, NewGasBudget(gas, 0), nil, params.Rules{}, nil)
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if inHave := string(input); inWant != inHave {
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t.Errorf("Precompiled %v modified input data", a)
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}
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})
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}
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