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benchmark.go
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benchmark.go
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// Copyright 2020 YOUCHAIN FOUNDATION LTD.
// Copyright 2016 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 mobile
import (
"fmt"
"github.com/youchainhq/go-youchain/crypto"
"sync/atomic"
"time"
)
var testPrivateKeyHex = "289c2857d4598e37fb9647507e47a309d6133539bf21a8b9cb6df88fd5232032"
type Task struct {
Finished chan bool
}
func (w Task) Run(msg, sig []byte, times int) {
for i := 0; i < times; i++ {
_, err := crypto.Ecrecover(msg, sig)
if err != nil {
fmt.Println(err)
}
}
w.Finished <- true
}
// Recover return cpu benchmark
func Recover(times int, thread int) (int, error) {
key, _ := crypto.HexToECDSA(testPrivateKeyHex)
msg := crypto.Keccak256([]byte("foo"))
sig, err := crypto.Sign(msg, key)
if err != nil {
return 0, err
}
now := time.Now().UnixNano()
finished := make(chan bool, thread)
for i := 0; i < thread; i++ {
task := Task{finished}
go task.Run(msg, sig, times/thread)
}
counter := int32(0)
for {
select {
case <-finished:
if atomic.AddInt32(&counter, 1) == int32(thread) {
goto ret
}
}
}
ret:
return int((time.Now().UnixNano() - now) / 1e6), nil
}