a naive benchmark

lnd_benchmark.go

package itest

import (
	"fmt"
	"time"

	"github.com/lightningnetwork/lnd/lntest"
)

// testNetworkConnectionTimeout checks that the connectiontimeout is taking
// effect. It creates a node with a small connection timeout value, and
// connects it to a non-routable IP address.
// Results:
// 
// [height:448] setup node :1.485320301s
// [height:448] restart node :832.921011ms
// ===========================================
// mine 10 blocks :305.289338ms
// setup a new node with 458 blocks: 1.722693468s
// restart node :831.285503ms
// ===========================================
// mine 100 blocks :5.899697955s
// setup a new node with 558 blocks: 2.345724038s
// restart node :831.945432ms
// ===========================================
// mine 1000 blocks :59.836386824s
// setup a new node with 1558 blocks: 20.319189488s
// restart node :834.446827ms
// ===========================================
// [height:1558] restart old node :835.327677ms
//
func testBenchmark(ht *lntest.HarnessTest) {
	_, height := ht.GetBestBlock()
	start := time.Now()
	node := ht.NewNode("benchmark", nil)
	fmt.Printf("[height:%d] setup node :%v\n", height, time.Since(start))

	start = time.Now()
	ht.RestartNode(node)
	fmt.Printf("[height:%d] restart node :%v\n", height, time.Since(start))

	fmt.Println("===========================================")
	blocks := []uint32{10, 100, 1000}
	for _, num := range blocks {
		start := time.Now()

		ht.MineBlocks(num)
		fmt.Printf("mine %d blocks :%v\n", num, time.Since(start))

		_, height := ht.GetBestBlock()

		start = time.Now()
		ben := ht.NewNode("benchmark", nil)
		defer ht.Shutdown(ben)
		fmt.Printf("setup node with %d blocks: %v\n", height, time.Since(start))

		start = time.Now()
		ht.RestartNode(ben)
		fmt.Printf("restart node :%v\n", time.Since(start))
		fmt.Println("===========================================")

	}

	_, height = ht.GetBestBlock()
	start = time.Now()
	ht.RestartNode(node)
	ht.WaitForBlockchainSync(node)
	fmt.Printf("[height:%d] restart node :%v\n", height, time.Since(start))
}