prysm-pulse/tools/benchmark-files-gen/main.go
2021-05-26 11:33:46 -07:00

220 lines
7.1 KiB
Go

package main
import (
"context"
"flag"
"io/ioutil"
"log"
"os"
"path"
"github.com/pkg/errors"
types "github.com/prysmaticlabs/eth2-types"
ethpb "github.com/prysmaticlabs/ethereumapis/eth/v1alpha1"
"github.com/prysmaticlabs/prysm/beacon-chain/core/helpers"
"github.com/prysmaticlabs/prysm/beacon-chain/core/state"
iface "github.com/prysmaticlabs/prysm/beacon-chain/state/interface"
"github.com/prysmaticlabs/prysm/beacon-chain/state/stateV0"
pb "github.com/prysmaticlabs/prysm/proto/beacon/p2p/v1"
"github.com/prysmaticlabs/prysm/shared/benchutil"
"github.com/prysmaticlabs/prysm/shared/fileutil"
"github.com/prysmaticlabs/prysm/shared/interfaces"
"github.com/prysmaticlabs/prysm/shared/interop"
"github.com/prysmaticlabs/prysm/shared/params"
"github.com/prysmaticlabs/prysm/shared/testutil"
)
var (
outputDir = flag.String("output-dir", "", "Directory to write SSZ files to")
overwrite = flag.Bool("overwrite", false, "If SSZ files exist in the output directory, they will be overwritten")
)
func main() {
flag.Parse()
if *outputDir == "" {
log.Fatal("Please specify --output-dir to write SSZ files to")
}
if !*overwrite {
if _, err := os.Stat(path.Join(*outputDir, benchutil.BState1EpochFileName)); err == nil {
log.Fatal("The file exists. Use a different file name or the --overwrite flag")
}
if _, err := os.Stat(path.Join(*outputDir, benchutil.BState2EpochFileName)); err == nil {
log.Fatal("The file exists. Use a different file name or the --overwrite flag")
}
if _, err := os.Stat(path.Join(*outputDir, benchutil.FullBlockFileName)); err == nil {
log.Fatal("The file exists. Use a different file name or the --overwrite flag")
}
}
if err := fileutil.MkdirAll(*outputDir); err != nil {
log.Fatal(err)
}
log.Printf("Output dir is: %s", *outputDir)
log.Println("Generating genesis state")
// Generating this for the 2 following states.
if err := generateGenesisBeaconState(); err != nil {
log.Fatalf("Could not generate genesis state: %v", err)
}
log.Println("Generating full block and state after 1 skipped epoch")
if err := generateMarshalledFullStateAndBlock(); err != nil {
log.Fatalf("Could not generate full state and block: %v", err)
}
log.Println("Generating state after 2 fully attested epochs")
if err := generate2FullEpochState(); err != nil {
log.Fatalf("Could not generate 2 full epoch state: %v", err)
}
// Removing the genesis state SSZ since its 10MB large and no longer needed.
if err := os.Remove(path.Join(*outputDir, benchutil.GenesisFileName)); err != nil {
log.Fatal(err)
}
}
func generateGenesisBeaconState() error {
genesisState, _, err := interop.GenerateGenesisState(context.Background(), 0, benchutil.ValidatorCount)
if err != nil {
return err
}
beaconBytes, err := genesisState.MarshalSSZ()
if err != nil {
return err
}
return fileutil.WriteFile(path.Join(*outputDir, benchutil.GenesisFileName), beaconBytes)
}
func generateMarshalledFullStateAndBlock() error {
benchutil.SetBenchmarkConfig()
beaconState, err := genesisBeaconState()
if err != nil {
return err
}
privs, _, err := interop.DeterministicallyGenerateKeys(0, benchutil.ValidatorCount)
if err != nil {
return err
}
conf := &testutil.BlockGenConfig{}
slotsPerEpoch := params.BeaconConfig().SlotsPerEpoch
// Small offset for the beacon state so we dont process a block on an epoch.
slotOffset := types.Slot(2)
block, err := testutil.GenerateFullBlock(beaconState, privs, conf, slotsPerEpoch+slotOffset)
if err != nil {
return err
}
beaconState, err = state.ExecuteStateTransition(context.Background(), beaconState, interfaces.WrappedPhase0SignedBeaconBlock(block))
if err != nil {
return err
}
attConfig := &testutil.BlockGenConfig{
NumAttestations: benchutil.AttestationsPerEpoch / uint64(slotsPerEpoch),
}
var atts []*ethpb.Attestation
for i := slotOffset + 1; i < slotsPerEpoch+slotOffset; i++ {
attsForSlot, err := testutil.GenerateAttestations(beaconState, privs, attConfig.NumAttestations, i, false)
if err != nil {
return err
}
atts = append(atts, attsForSlot...)
}
block, err = testutil.GenerateFullBlock(beaconState, privs, attConfig, beaconState.Slot())
if err != nil {
return errors.Wrap(err, "could not generate full block")
}
block.Block.Body.Attestations = append(atts, block.Block.Body.Attestations...)
s, err := state.CalculateStateRoot(context.Background(), beaconState, interfaces.WrappedPhase0SignedBeaconBlock(block))
if err != nil {
return errors.Wrap(err, "could not calculate state root")
}
block.Block.StateRoot = s[:]
// Temporarily incrementing the beacon state slot here since BeaconProposerIndex is a
// function deterministic on beacon state slot.
if err := beaconState.SetSlot(beaconState.Slot() + 1); err != nil {
return err
}
proposerIdx, err := helpers.BeaconProposerIndex(beaconState)
if err != nil {
return err
}
block.Signature, err = helpers.ComputeDomainAndSign(beaconState, helpers.CurrentEpoch(beaconState), block.Block, params.BeaconConfig().DomainBeaconProposer, privs[proposerIdx])
if err != nil {
return err
}
if err := beaconState.SetSlot(beaconState.Slot() - 1); err != nil {
return err
}
beaconBytes, err := beaconState.MarshalSSZ()
if err != nil {
return err
}
if err := fileutil.WriteFile(path.Join(*outputDir, benchutil.BState1EpochFileName), beaconBytes); err != nil {
return err
}
// Running a single state transition to make sure the generated files aren't broken.
_, err = state.ExecuteStateTransition(context.Background(), beaconState, interfaces.WrappedPhase0SignedBeaconBlock(block))
if err != nil {
return err
}
blockBytes, err := block.MarshalSSZ()
if err != nil {
return err
}
return fileutil.WriteFile(path.Join(*outputDir, benchutil.FullBlockFileName), blockBytes)
}
func generate2FullEpochState() error {
benchutil.SetBenchmarkConfig()
beaconState, err := genesisBeaconState()
if err != nil {
return err
}
privs, _, err := interop.DeterministicallyGenerateKeys(0, benchutil.ValidatorCount)
if err != nil {
return err
}
attConfig := &testutil.BlockGenConfig{
NumAttestations: benchutil.AttestationsPerEpoch / uint64(params.BeaconConfig().SlotsPerEpoch),
}
for i := types.Slot(0); i < params.BeaconConfig().SlotsPerEpoch*2-1; i++ {
block, err := testutil.GenerateFullBlock(beaconState, privs, attConfig, beaconState.Slot())
if err != nil {
return err
}
beaconState, err = state.ExecuteStateTransition(context.Background(), beaconState, interfaces.WrappedPhase0SignedBeaconBlock(block))
if err != nil {
return err
}
}
beaconBytes, err := beaconState.MarshalSSZ()
if err != nil {
return err
}
return fileutil.WriteFile(path.Join(*outputDir, benchutil.BState2EpochFileName), beaconBytes)
}
func genesisBeaconState() (iface.BeaconState, error) {
beaconBytes, err := ioutil.ReadFile(path.Join(*outputDir, benchutil.GenesisFileName))
if err != nil {
return nil, errors.Wrap(err, "cannot read genesis state file")
}
genesisState := &pb.BeaconState{}
if err := genesisState.UnmarshalSSZ(beaconBytes); err != nil {
return nil, errors.Wrap(err, "cannot unmarshal genesis state file")
}
return stateV0.InitializeFromProtoUnsafe(genesisState)
}