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// Copyright 2014 The go-ethereum Authors
// This file is part of the go-ethereum library.
//
// The go-ethereum library is free software: you can redistribute it and/or modify
// it under the terms of the GNU Lesser General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// The go-ethereum library is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU Lesser General Public License for more details.
//
// You should have received a copy of the GNU Lesser General Public License
// along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
package vm
import (
"math/big"
"testing"
"time"
"github.com/ethereum/go-ethereum/common"
"github.com/ethereum/go-ethereum/core/state"
"github.com/ethereum/go-ethereum/crypto"
"github.com/ethereum/go-ethereum/ethdb"
)
const maxRun = 1000
type vmBench struct {
precompile bool // compile prior to executing
nojit bool // ignore jit (sets DisbaleJit = true
forcejit bool // forces the jit, precompile is ignored
code []byte
input []byte
}
func runVmBench(test vmBench, b *testing.B) {
db, _ := ethdb.NewMemDatabase()
sender := state.NewStateObject(common.Address{}, db)
if test.precompile && !test.forcejit {
NewProgram(test.code)
}
env := NewEnv()
EnableJit = !test.nojit
ForceJit = test.forcejit
b.ResetTimer()
for i := 0; i < b.N; i++ {
context := NewContext(sender, sender, big.NewInt(100), big.NewInt(10000), big.NewInt(0))
context.Code = test.code
context.CodeAddr = &common.Address{}
_, err := New(env).Run(context, test.input)
if err != nil {
b.Error(err)
b.FailNow()
}
}
}
var benchmarks = map[string]vmBench{
"pushes": vmBench{
false, false, false,
common.Hex2Bytes("600a600a01600a600a01600a600a01600a600a01600a600a01600a600a01600a600a01600a600a01600a600a01600a600a01"), nil,
},
}
func BenchmarkPushes(b *testing.B) {
runVmBench(benchmarks["pushes"], b)
}
type Env struct {
gasLimit *big.Int
depth int
}
func NewEnv() *Env {
return &Env{big.NewInt(10000), 0}
}
func (self *Env) Origin() common.Address { return common.Address{} }
func (self *Env) BlockNumber() *big.Int { return big.NewInt(0) }
func (self *Env) AddStructLog(log StructLog) {
}
func (self *Env) StructLogs() []StructLog {
return nil
}
//func (self *Env) PrevHash() []byte { return self.parent }
func (self *Env) Coinbase() common.Address { return common.Address{} }
func (self *Env) Time() uint64 { return uint64(time.Now().Unix()) }
func (self *Env) Difficulty() *big.Int { return big.NewInt(0) }
func (self *Env) State() *state.StateDB { return nil }
func (self *Env) GasLimit() *big.Int { return self.gasLimit }
func (self *Env) VmType() Type { return StdVmTy }
func (self *Env) GetHash(n uint64) common.Hash {
return common.BytesToHash(crypto.Sha3([]byte(big.NewInt(int64(n)).String())))
}
func (self *Env) AddLog(log *state.Log) {
}
func (self *Env) Depth() int { return self.depth }
func (self *Env) SetDepth(i int) { self.depth = i }
func (self *Env) CanTransfer(from Account, balance *big.Int) bool {
return from.Balance().Cmp(balance) >= 0
}
func (self *Env) Transfer(from, to Account, amount *big.Int) error {
return nil
}
func (self *Env) Call(caller ContextRef, addr common.Address, data []byte, gas, price, value *big.Int) ([]byte, error) {
return nil, nil
}
func (self *Env) CallCode(caller ContextRef, addr common.Address, data []byte, gas, price, value *big.Int) ([]byte, error) {
return nil, nil
}
func (self *Env) Create(caller ContextRef, data []byte, gas, price, value *big.Int) ([]byte, error, ContextRef) {
return nil, nil, nil
}
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