forked from bnb-chain/bsc
-
Notifications
You must be signed in to change notification settings - Fork 0
Commit
This commit does not belong to any branch on this repository, and may belong to a fork outside of the repository.
core: fix potential goroutine leak (bnb-chain#1079)
* core: fix potential goroutine leak * core: fix 0 index, and add ut for routineleaking
- Loading branch information
Showing
4 changed files
with
170 additions
and
6 deletions.
There are no files selected for viewing
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,148 @@ | ||
| package core | ||
|
|
||
| import ( | ||
| "math/big" | ||
| "testing" | ||
| "time" | ||
|
|
||
| "bytes" | ||
| "context" | ||
| "errors" | ||
| "fmt" | ||
| "runtime/pprof" | ||
| "strings" | ||
|
|
||
| "github.com/ethereum/go-ethereum/common" | ||
| "github.com/ethereum/go-ethereum/consensus/ethash" | ||
| "github.com/ethereum/go-ethereum/core/rawdb" | ||
| "github.com/ethereum/go-ethereum/core/state" | ||
| "github.com/ethereum/go-ethereum/core/types" | ||
| "github.com/ethereum/go-ethereum/core/vm" | ||
| "github.com/ethereum/go-ethereum/crypto" | ||
| "github.com/ethereum/go-ethereum/params" | ||
|
|
||
| "github.com/google/pprof/profile" | ||
| ) | ||
|
|
||
| func TestPrefetchLeaking(t *testing.T) { | ||
| ctx, cancel := context.WithCancel(context.Background()) | ||
| defer cancel() | ||
| var ( | ||
| gendb = rawdb.NewMemoryDatabase() | ||
| key, _ = crypto.HexToECDSA("b71c71a67e1177ad4e901695e1b4b9ee17ae16c6668d313eac2f96dbcda3f291") | ||
| address = crypto.PubkeyToAddress(key.PublicKey) | ||
| funds = big.NewInt(100000000000000000) | ||
| gspec = &Genesis{ | ||
| Config: params.TestChainConfig, | ||
| Alloc: GenesisAlloc{address: {Balance: funds}}, | ||
| BaseFee: big.NewInt(params.InitialBaseFee), | ||
| } | ||
| genesis = gspec.MustCommit(gendb) | ||
| signer = types.LatestSigner(gspec.Config) | ||
| ) | ||
| blocks, _ := GenerateChain(gspec.Config, genesis, ethash.NewFaker(), gendb, 1, func(i int, block *BlockGen) { | ||
| block.SetCoinbase(common.Address{0x00}) | ||
| for j := 0; j < 100; j++ { | ||
| tx, err := types.SignTx(types.NewTransaction(block.TxNonce(address), common.Address{0x00}, big.NewInt(1000), params.TxGas, block.header.BaseFee, nil), signer, key) | ||
| if err != nil { | ||
| panic(err) | ||
| } | ||
| block.AddTx(tx) | ||
| } | ||
| }) | ||
| archiveDb := rawdb.NewMemoryDatabase() | ||
| gspec.MustCommit(archiveDb) | ||
| archive, _ := NewBlockChain(archiveDb, nil, gspec.Config, ethash.NewFaker(), vm.Config{}, nil, nil) | ||
| defer archive.Stop() | ||
|
|
||
| block := blocks[0] | ||
| parent := archive.GetHeader(block.ParentHash(), block.NumberU64()-1) | ||
| statedb, _ := state.NewWithSharedPool(parent.Root, archive.stateCache, archive.snaps) | ||
| inter := make(chan struct{}) | ||
|
|
||
| Track(ctx, t, func(ctx context.Context) { | ||
| close(inter) | ||
| go archive.prefetcher.Prefetch(block, statedb, &archive.vmConfig, inter) | ||
| time.Sleep(1 * time.Second) | ||
| }) | ||
| } | ||
|
|
||
| func Track(ctx context.Context, t *testing.T, fn func(context.Context)) { | ||
| label := t.Name() | ||
| pprof.Do(ctx, pprof.Labels("test", label), fn) | ||
| if err := CheckNoGoroutines("test", label); err != nil { | ||
| t.Fatal("Leaked goroutines\n", err) | ||
| } | ||
| } | ||
|
|
||
| func CheckNoGoroutines(key, value string) error { | ||
| var pb bytes.Buffer | ||
| profiler := pprof.Lookup("goroutine") | ||
| if profiler == nil { | ||
| return fmt.Errorf("unable to find profile") | ||
| } | ||
| err := profiler.WriteTo(&pb, 0) | ||
| if err != nil { | ||
| return fmt.Errorf("unable to read profile: %w", err) | ||
| } | ||
|
|
||
| p, err := profile.ParseData(pb.Bytes()) | ||
| if err != nil { | ||
| return fmt.Errorf("unable to parse profile: %w", err) | ||
| } | ||
|
|
||
| return summarizeGoroutines(p, key, value) | ||
| } | ||
|
|
||
| func summarizeGoroutines(p *profile.Profile, key, expectedValue string) error { | ||
| var b strings.Builder | ||
|
|
||
| for _, sample := range p.Sample { | ||
| if !matchesLabel(sample, key, expectedValue) { | ||
| continue | ||
| } | ||
|
|
||
| fmt.Fprintf(&b, "count %d @", sample.Value[0]) | ||
| // format the stack trace for each goroutine | ||
| for _, loc := range sample.Location { | ||
| for i, ln := range loc.Line { | ||
| if i == 0 { | ||
| fmt.Fprintf(&b, "# %#8x", loc.Address) | ||
| if loc.IsFolded { | ||
| fmt.Fprint(&b, " [F]") | ||
| } | ||
| } else { | ||
| fmt.Fprint(&b, "# ") | ||
| } | ||
| if fn := ln.Function; fn != nil { | ||
| fmt.Fprintf(&b, " %-50s %s:%d", fn.Name, fn.Filename, ln.Line) | ||
| } else { | ||
| fmt.Fprintf(&b, " ???") | ||
| } | ||
| fmt.Fprintf(&b, "\n") | ||
| } | ||
| } | ||
| fmt.Fprintf(&b, "\n") | ||
| } | ||
|
|
||
| if b.Len() == 0 { | ||
| return nil | ||
| } | ||
|
|
||
| return errors.New(b.String()) | ||
| } | ||
|
|
||
| func matchesLabel(sample *profile.Sample, key, expectedValue string) bool { | ||
| values, hasLabel := sample.Label[key] | ||
| if !hasLabel { | ||
| return false | ||
| } | ||
|
|
||
| for _, value := range values { | ||
| if value == expectedValue { | ||
| return true | ||
| } | ||
| } | ||
|
|
||
| return false | ||
| } |
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters