mirror of
https://github.com/ipfs/kubo.git
synced 2026-02-24 03:47:45 +08:00
120 lines
2.6 KiB
Go
120 lines
2.6 KiB
Go
package importer
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import (
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"bytes"
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"context"
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"io"
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"io/ioutil"
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"testing"
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chunk "github.com/ipfs/go-ipfs/importer/chunk"
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dag "github.com/ipfs/go-ipfs/merkledag"
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mdtest "github.com/ipfs/go-ipfs/merkledag/test"
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uio "github.com/ipfs/go-ipfs/unixfs/io"
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node "gx/ipfs/QmPN7cwmpcc4DWXb4KTB9dNAJgjuPY69h3npsMfhRrQL9c/go-ipld-format"
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u "gx/ipfs/QmSU6eubNdhXjFBJBSksTp8kv8YRub8mGAPv8tVJHmL2EU/go-ipfs-util"
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)
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func getBalancedDag(t testing.TB, size int64, blksize int64) (node.Node, dag.DAGService) {
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ds := mdtest.Mock()
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r := io.LimitReader(u.NewTimeSeededRand(), size)
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nd, err := BuildDagFromReader(ds, chunk.NewSizeSplitter(r, blksize))
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if err != nil {
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t.Fatal(err)
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}
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return nd, ds
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}
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func getTrickleDag(t testing.TB, size int64, blksize int64) (node.Node, dag.DAGService) {
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ds := mdtest.Mock()
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r := io.LimitReader(u.NewTimeSeededRand(), size)
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nd, err := BuildTrickleDagFromReader(ds, chunk.NewSizeSplitter(r, blksize))
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if err != nil {
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t.Fatal(err)
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}
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return nd, ds
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}
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func TestBalancedDag(t *testing.T) {
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ds := mdtest.Mock()
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buf := make([]byte, 10000)
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u.NewTimeSeededRand().Read(buf)
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r := bytes.NewReader(buf)
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nd, err := BuildDagFromReader(ds, chunk.DefaultSplitter(r))
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if err != nil {
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t.Fatal(err)
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}
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dr, err := uio.NewDagReader(context.Background(), nd, ds)
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if err != nil {
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t.Fatal(err)
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}
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out, err := ioutil.ReadAll(dr)
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if err != nil {
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t.Fatal(err)
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}
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if !bytes.Equal(out, buf) {
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t.Fatal("bad read")
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}
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}
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func BenchmarkBalancedReadSmallBlock(b *testing.B) {
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b.StopTimer()
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nbytes := int64(10000000)
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nd, ds := getBalancedDag(b, nbytes, 4096)
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b.SetBytes(nbytes)
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b.StartTimer()
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runReadBench(b, nd, ds)
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}
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func BenchmarkTrickleReadSmallBlock(b *testing.B) {
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b.StopTimer()
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nbytes := int64(10000000)
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nd, ds := getTrickleDag(b, nbytes, 4096)
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b.SetBytes(nbytes)
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b.StartTimer()
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runReadBench(b, nd, ds)
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}
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func BenchmarkBalancedReadFull(b *testing.B) {
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b.StopTimer()
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nbytes := int64(10000000)
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nd, ds := getBalancedDag(b, nbytes, chunk.DefaultBlockSize)
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b.SetBytes(nbytes)
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b.StartTimer()
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runReadBench(b, nd, ds)
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}
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func BenchmarkTrickleReadFull(b *testing.B) {
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b.StopTimer()
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nbytes := int64(10000000)
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nd, ds := getTrickleDag(b, nbytes, chunk.DefaultBlockSize)
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b.SetBytes(nbytes)
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b.StartTimer()
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runReadBench(b, nd, ds)
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}
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func runReadBench(b *testing.B, nd node.Node, ds dag.DAGService) {
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for i := 0; i < b.N; i++ {
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ctx, cancel := context.WithCancel(context.Background())
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read, err := uio.NewDagReader(ctx, nd, ds)
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if err != nil {
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b.Fatal(err)
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}
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_, err = read.WriteTo(ioutil.Discard)
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if err != nil && err != io.EOF {
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b.Fatal(err)
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}
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cancel()
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}
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}
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