core: chain read/write speed benchmarks

pull/2455/head
zsfelfoldi 9 years ago
parent fdd61b83ff
commit 5a458da42a
  1. 119
      core/bench_test.go

@ -176,3 +176,122 @@ func benchInsertChain(b *testing.B, disk bool, gen func(int, *BlockGen)) {
b.Fatalf("insert error (block %d): %v\n", i, err) b.Fatalf("insert error (block %d): %v\n", i, err)
} }
} }
func BenchmarkChainRead_header_10k(b *testing.B) {
benchReadChain(b, false, 10000)
}
func BenchmarkChainRead_full_10k(b *testing.B) {
benchReadChain(b, true, 10000)
}
func BenchmarkChainRead_header_100k(b *testing.B) {
benchReadChain(b, false, 100000)
}
func BenchmarkChainRead_full_100k(b *testing.B) {
benchReadChain(b, true, 100000)
}
func BenchmarkChainRead_header_500k(b *testing.B) {
benchReadChain(b, false, 500000)
}
func BenchmarkChainRead_full_500k(b *testing.B) {
benchReadChain(b, true, 500000)
}
func BenchmarkChainWrite_header_10k(b *testing.B) {
benchWriteChain(b, false, 10000)
}
func BenchmarkChainWrite_full_10k(b *testing.B) {
benchWriteChain(b, true, 10000)
}
func BenchmarkChainWrite_header_100k(b *testing.B) {
benchWriteChain(b, false, 100000)
}
func BenchmarkChainWrite_full_100k(b *testing.B) {
benchWriteChain(b, true, 100000)
}
func BenchmarkChainWrite_header_500k(b *testing.B) {
benchWriteChain(b, false, 500000)
}
func BenchmarkChainWrite_full_500k(b *testing.B) {
benchWriteChain(b, true, 500000)
}
// makeChainForBench writes a given number of headers or empty blocks/receipts
// into a database.
func makeChainForBench(db ethdb.Database, full bool, count uint64) {
var hash common.Hash
for n := uint64(0); n < count; n++ {
header := &types.Header{
Coinbase: common.Address{},
Number: big.NewInt(int64(n)),
ParentHash: hash,
Difficulty: big.NewInt(1),
UncleHash: types.EmptyUncleHash,
TxHash: types.EmptyRootHash,
ReceiptHash: types.EmptyRootHash,
}
hash = header.Hash()
WriteHeader(db, header)
WriteCanonicalHash(db, hash, n)
WriteTd(db, hash, big.NewInt(int64(n+1)))
if full || n == 0 {
block := types.NewBlockWithHeader(header)
WriteBody(db, hash, block.Body())
WriteBlockReceipts(db, hash, nil)
}
}
}
func benchWriteChain(b *testing.B, full bool, count uint64) {
for i := 0; i < b.N; i++ {
dir, err := ioutil.TempDir("", "eth-chain-bench")
if err != nil {
b.Fatalf("cannot create temporary directory: %v", err)
}
db, err := ethdb.NewLDBDatabase(dir, 128, 1024)
if err != nil {
b.Fatalf("error opening database at %v: %v", dir, err)
}
makeChainForBench(db, full, count)
db.Close()
os.RemoveAll(dir)
}
}
func benchReadChain(b *testing.B, full bool, count uint64) {
dir, err := ioutil.TempDir("", "eth-chain-bench")
if err != nil {
b.Fatalf("cannot create temporary directory: %v", err)
}
defer os.RemoveAll(dir)
db, err := ethdb.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 := ethdb.NewLDBDatabase(dir, 128, 1024)
if err != nil {
b.Fatalf("error opening database at %v: %v", dir, err)
}
chain, err := NewBlockChain(db, testChainConfig(), FakePow{}, new(event.TypeMux))
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()
GetBody(db, hash)
GetBlockReceipts(db, hash)
}
}
db.Close()
}
}

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