Function benchReadChain

core/bench_test.go:254–294

(b *testing.B, full bool, count uint64)

}

func benchReadChain(b *testing.B, full bool, count uint64) {
	testdb := database.NewMemDatabase()
	dir, err := ioutil.TempDir("", "eth-chain-bench")
	if err != nil {
		b.Fatalf("cannot create temporary directory: %v", err)
	}
	defer os.RemoveAll(dir)

	db, err := database.NewLDBDatabase(dir, 128, 1024)
	if err != nil {
		b.Fatalf("error opening database at %v: %v", dir, err)
	}
	makeChainForBench(db, full, count)
	db.Close()

	b.ReportAllocs()
	b.ResetTimer()

	for i := 0; i < b.N; i++ {
		db, err := database.NewLDBDatabase(dir, 128, 1024)
		remoteDB := database.NewIpfsDbWithAdapter(database.NewFakeIpfsAdapter())
		if err != nil {
			b.Fatalf("error opening database at %v: %v", dir, err)
		}
		chain, err := NewBlockChain(db, nil, configs.TestChainConfig, dpor.NewFaker(configs.ChainConfigInfo().Dpor, testdb), vm.Config{}, remoteDB, nil)
		if err != nil {
			b.Fatalf("error creating chain: %v", err)
		}

		for n := uint64(0); n < count; n++ {
			header := chain.GetHeaderByNumber(n)
			if full {
				hash := header.Hash()
				rawdb.ReadBody(db, hash, n)
				rawdb.ReadReceipts(db, hash, n)
			}
		}
		chain.Stop()
		db.Close()
	}
}