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atree_reporter.go
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/
atree_reporter.go
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package reporters
import (
"bytes"
"errors"
"fmt"
goRuntime "runtime"
"sync"
"github.com/onflow/atree"
fvmState "github.com/onflow/flow-go/fvm/state"
"github.com/onflow/flow-go/ledger"
"github.com/rs/zerolog"
"github.com/schollz/progressbar/v3"
)
// AtreeReporter iterates payloads and generates payload and atree stats.
type AtreeReporter struct {
Log zerolog.Logger
RWF ReportWriterFactory
}
var _ ledger.Reporter = &AtreeReporter{}
func (r *AtreeReporter) Name() string {
return "Atree Reporter"
}
func (r *AtreeReporter) Report(payloads []ledger.Payload, commit ledger.State) error {
rwa := r.RWF.ReportWriter("atree_report")
defer rwa.Close()
progress := progressbar.Default(int64(len(payloads)), "Processing:")
workerCount := goRuntime.NumCPU() / 2
if workerCount == 0 {
workerCount = 1
}
jobs := make(chan *ledger.Payload, workerCount)
results := make(chan payloadStats, workerCount)
defer close(results)
// create multiple workers to process payloads concurrently
wg := &sync.WaitGroup{}
wg.Add(workerCount)
for i := 0; i < workerCount; i++ {
go func() {
defer wg.Done()
var stats payloadStats
for p := range jobs {
err := stats.process(p)
if err != nil {
k, keyErr := p.Key()
if keyErr != nil {
r.Log.Err(keyErr).Msg("failed to get payload key")
} else {
r.Log.Err(err).Msgf("failed to process payload %s", k.String())
}
}
}
results <- stats
}()
}
// produce jobs for workers to process
for i := 0; i < len(payloads); i++ {
jobs <- &payloads[i]
err := progress.Add(1)
if err != nil {
panic(fmt.Errorf("progress.Add(1): %w", err))
}
}
close(jobs)
// wait until all jobs are done
wg.Wait()
err := progress.Finish()
if err != nil {
panic(fmt.Errorf("progress.Finish(): %w", err))
}
// aggregate all payload stats
var stats payloadStats
for i := 0; i < workerCount; i++ {
r := <-results
stats.add(&r)
}
rwa.Write(stats)
return nil
}
type payloadType uint
const (
unknownPayloadType payloadType = iota
fvmPayloadType
storagePayloadType
slabPayloadType
)
func getPayloadType(p *ledger.Payload) (payloadType, error) {
k, err := p.Key()
if err != nil {
return unknownPayloadType, err
}
if len(k.KeyParts) < 2 {
return unknownPayloadType, nil
}
if fvmState.IsFVMStateKey(
string(k.KeyParts[0].Value),
string(k.KeyParts[1].Value),
) {
return fvmPayloadType, nil
}
if bytes.HasPrefix(k.KeyParts[1].Value, []byte(atree.LedgerBaseStorageSlabPrefix)) {
return slabPayloadType, nil
}
return storagePayloadType, nil
}
type slabPayloadStats struct {
SlabArrayMetaCount uint
SlabArrayDataCount uint
SlabMapMetaCount uint
SlabMapDataCount uint
SlabMapExternalCollisionCount uint
SlabStorableCount uint
SlabMapCollisionGroupCount uint
SlabMapCollisionCounts []uint
}
type payloadStats struct {
FVMPayloadCount uint
StoragePayloadCount uint
SlabPayloadCount uint
slabPayloadStats
}
func (s *payloadStats) add(s1 *payloadStats) {
s.FVMPayloadCount += s1.FVMPayloadCount
s.StoragePayloadCount += s1.StoragePayloadCount
s.SlabPayloadCount += s1.SlabPayloadCount
s.SlabArrayMetaCount += s1.SlabArrayMetaCount
s.SlabArrayDataCount += s1.SlabArrayDataCount
s.SlabMapMetaCount += s1.SlabMapMetaCount
s.SlabMapDataCount += s1.SlabMapDataCount
s.SlabMapExternalCollisionCount += s1.SlabMapExternalCollisionCount
s.SlabStorableCount += s1.SlabStorableCount
s.SlabMapCollisionGroupCount += s1.SlabMapCollisionGroupCount
if len(s1.SlabMapCollisionCounts) > 0 {
s.SlabMapCollisionCounts = append(s.SlabMapCollisionCounts, s1.SlabMapCollisionCounts...)
}
}
func (s *payloadStats) process(p *ledger.Payload) error {
pt, err := getPayloadType(p)
if err != nil {
return err
}
switch pt {
case unknownPayloadType:
return fmt.Errorf("unknown payload: %s", p.String())
case fvmPayloadType:
s.FVMPayloadCount++
case storagePayloadType:
s.StoragePayloadCount++
case slabPayloadType:
s.SlabPayloadCount++
}
if pt != slabPayloadType {
return nil
}
if len(p.Value()) < versionAndFlagSize {
return errors.New("data is too short")
}
flag := p.Value()[flagIndex]
switch dataType := getSlabType(flag); dataType {
case slabArray:
switch arrayDataType := getSlabArrayType(flag); arrayDataType {
case slabArrayData:
s.SlabArrayDataCount++
case slabArrayMeta:
s.SlabArrayMetaCount++
default:
return fmt.Errorf("slab array has invalid flag 0x%x", flag)
}
case slabMap:
switch mapDataType := getSlabMapType(flag); mapDataType {
case slabMapData:
_, collisionGroupCount, err := getCollisionGroupCountFromSlabMapData(p.Value())
if err != nil {
return err
}
if collisionGroupCount > 0 {
_, inlineCollisionCount, err := getInlineCollisionCountsFromSlabMapData(p.Value())
if err != nil {
return err
}
if len(inlineCollisionCount) > 0 {
s.SlabMapCollisionCounts = append(s.SlabMapCollisionCounts, inlineCollisionCount...)
}
}
s.SlabMapCollisionGroupCount += collisionGroupCount
s.SlabMapDataCount++
case slabMapCollisionGroup:
elements, err := parseSlabMapData(p.Value())
if err != nil {
return err
}
_, rawElements, err := parseRawElements(elements, decMode)
if err != nil {
return err
}
if len(rawElements) > 0 {
s.SlabMapCollisionCounts = append(s.SlabMapCollisionCounts, uint(len(rawElements)))
}
s.SlabMapExternalCollisionCount++
case slabMapMeta:
s.SlabMapMetaCount++
default:
return fmt.Errorf("slab map has invalid flag 0x%x", flag)
}
case slabStorable:
s.SlabStorableCount++
default:
return fmt.Errorf("slab data has invalid flag 0x%x", flag)
}
return nil
}