Merge pull request #2156 from filecoin-project/fix/bench-analyze

Improve performance of bench import analyze
This commit is contained in:
Łukasz Magiera 2020-07-02 19:35:18 +02:00 committed by GitHub
commit 14ae8c7272
No known key found for this signature in database
GPG Key ID: 4AEE18F83AFDEB23
7 changed files with 463 additions and 60 deletions

1
.gitignore vendored
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@ -35,3 +35,4 @@ build/paramfetch.sh
bin/ipget
bin/tmp/*
.idea
scratchpad

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@ -143,30 +143,40 @@ func (ps pricedSyscalls) VerifySignature(signature crypto.Signature, signer addr
return err
}
ps.chargeGas(c)
defer ps.chargeGas(gasOnActorExec)
return ps.under.VerifySignature(signature, signer, plaintext)
}
// Hashes input data using blake2b with 256 bit output.
func (ps pricedSyscalls) HashBlake2b(data []byte) [32]byte {
ps.chargeGas(ps.pl.OnHashing(len(data)))
defer ps.chargeGas(gasOnActorExec)
return ps.under.HashBlake2b(data)
}
// Computes an unsealed sector CID (CommD) from its constituent piece CIDs (CommPs) and sizes.
func (ps pricedSyscalls) ComputeUnsealedSectorCID(reg abi.RegisteredSealProof, pieces []abi.PieceInfo) (cid.Cid, error) {
ps.chargeGas(ps.pl.OnComputeUnsealedSectorCid(reg, pieces))
defer ps.chargeGas(gasOnActorExec)
return ps.under.ComputeUnsealedSectorCID(reg, pieces)
}
// Verifies a sector seal proof.
func (ps pricedSyscalls) VerifySeal(vi abi.SealVerifyInfo) error {
ps.chargeGas(ps.pl.OnVerifySeal(vi))
defer ps.chargeGas(gasOnActorExec)
return ps.under.VerifySeal(vi)
}
// Verifies a proof of spacetime.
func (ps pricedSyscalls) VerifyPoSt(vi abi.WindowPoStVerifyInfo) error {
ps.chargeGas(ps.pl.OnVerifyPost(vi))
defer ps.chargeGas(gasOnActorExec)
return ps.under.VerifyPoSt(vi)
}
@ -182,19 +192,21 @@ func (ps pricedSyscalls) VerifyPoSt(vi abi.WindowPoStVerifyInfo) error {
// Returns nil and an error if the headers don't prove a fault.
func (ps pricedSyscalls) VerifyConsensusFault(h1 []byte, h2 []byte, extra []byte) (*runtime.ConsensusFault, error) {
ps.chargeGas(ps.pl.OnVerifyConsensusFault())
defer ps.chargeGas(gasOnActorExec)
return ps.under.VerifyConsensusFault(h1, h2, extra)
}
func (ps pricedSyscalls) BatchVerifySeals(inp map[address.Address][]abi.SealVerifyInfo) (map[address.Address][]bool, error) {
var gasChargeSum GasCharge
gasChargeSum.Name = "BatchVerifySeals"
ps.chargeGas(gasChargeSum) // TODO: this is only called by the cron actor. Should we even charge gas?
count := int64(0)
for _, svis := range inp {
for _, svi := range svis {
ch := ps.pl.OnVerifySeal(svi)
ps.chargeGas(newGasCharge("BatchVerifySingle", 0, 0).WithVirtual(ch.VirtualCompute+ch.ComputeGas, 0))
}
count += int64(len(svis))
}
gasChargeSum = gasChargeSum.WithExtra(count).WithVirtual(129778623*count+716683250, 0)
ps.chargeGas(gasChargeSum) // TODO: this is only called by the cron actor. Should we even charge gas?
defer ps.chargeGas(gasOnActorExec)
return ps.under.BatchVerifySeals(inp)
}

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@ -4,6 +4,7 @@ import (
"fmt"
"github.com/filecoin-project/specs-actors/actors/abi"
"github.com/filecoin-project/specs-actors/actors/abi/big"
"github.com/filecoin-project/specs-actors/actors/builtin"
"github.com/filecoin-project/specs-actors/actors/crypto"
)
@ -86,39 +87,57 @@ var _ Pricelist = (*pricelistV0)(nil)
// OnChainMessage returns the gas used for storing a message of a given size in the chain.
func (pl *pricelistV0) OnChainMessage(msgSize int) GasCharge {
return newGasCharge("OnChainMessage", 0, pl.onChainMessageBase+pl.onChainMessagePerByte*int64(msgSize))
return newGasCharge("OnChainMessage", 0, pl.onChainMessageBase+pl.onChainMessagePerByte*int64(msgSize)).WithVirtual(77302, 0)
}
// OnChainReturnValue returns the gas used for storing the response of a message in the chain.
func (pl *pricelistV0) OnChainReturnValue(dataSize int) GasCharge {
return newGasCharge("OnChainReturnValue", 0, int64(dataSize)*pl.onChainReturnValuePerByte)
return newGasCharge("OnChainReturnValue", 0, int64(dataSize)*pl.onChainReturnValuePerByte).WithVirtual(107294, 0)
}
// OnMethodInvocation returns the gas used when invoking a method.
func (pl *pricelistV0) OnMethodInvocation(value abi.TokenAmount, methodNum abi.MethodNum) GasCharge {
ret := pl.sendBase
extra := ""
virtGas := int64(1072944)
if value != abi.NewTokenAmount(0) {
// TODO: fix this, it is comparing pointers instead of values
// see vv
ret += pl.sendTransferFunds
}
if big.Cmp(value, abi.NewTokenAmount(0)) != 0 {
virtGas += 497495
if methodNum == builtin.MethodSend {
// transfer only
virtGas += 973940
}
extra += "t"
}
if methodNum != builtin.MethodSend {
ret += pl.sendInvokeMethod
extra += "i"
// running actors is cheaper becase we hand over to actors
virtGas += -295779
}
return newGasCharge("OnMethodInvocation", ret, 0).WithVirtual(ret*15000, 0)
return newGasCharge("OnMethodInvocation", ret, 0).WithVirtual(virtGas, 0).WithExtra(extra)
}
// OnIpldGet returns the gas used for storing an object
func (pl *pricelistV0) OnIpldGet(dataSize int) GasCharge {
return newGasCharge("OnIpldGet", pl.ipldGetBase+int64(dataSize)*pl.ipldGetPerByte, 0).WithExtra(dataSize).WithVirtual(pl.ipldGetBase*13750+(pl.ipldGetPerByte*100), 0)
return newGasCharge("OnIpldGet", pl.ipldGetBase+int64(dataSize)*pl.ipldGetPerByte, 0).
WithExtra(dataSize).WithVirtual(433685, 0)
}
// OnIpldPut returns the gas used for storing an object
func (pl *pricelistV0) OnIpldPut(dataSize int) GasCharge {
return newGasCharge("OnIpldPut", pl.ipldPutBase, int64(dataSize)*pl.ipldPutPerByte).WithExtra(dataSize).WithVirtual(pl.ipldPutBase*8700+(pl.ipldPutPerByte*100), 0)
return newGasCharge("OnIpldPut", pl.ipldPutBase, int64(dataSize)*pl.ipldPutPerByte).
WithExtra(dataSize).WithVirtual(88970, 0)
}
// OnCreateActor returns the gas used for creating an actor
func (pl *pricelistV0) OnCreateActor() GasCharge {
return newGasCharge("OnCreateActor", pl.createActorBase, pl.createActorExtra)
return newGasCharge("OnCreateActor", pl.createActorBase, pl.createActorExtra).WithVirtual(65636, 0)
}
// OnDeleteActor returns the gas used for deleting an actor
@ -127,39 +146,52 @@ func (pl *pricelistV0) OnDeleteActor() GasCharge {
}
// OnVerifySignature
func (pl *pricelistV0) OnVerifySignature(sigType crypto.SigType, planTextSize int) (GasCharge, error) {
costFn, ok := pl.verifySignature[sigType]
if !ok {
return GasCharge{}, fmt.Errorf("cost function for signature type %d not supported", sigType)
}
sigName, _ := sigType.Name()
return newGasCharge("OnVerifySignature", costFn(int64(planTextSize)), 0).WithExtra(sigName), nil
virtGas := int64(0)
switch sigType {
case crypto.SigTypeBLS:
virtGas = 220138570
case crypto.SigTypeSecp256k1:
virtGas = 7053730
}
return newGasCharge("OnVerifySignature", costFn(int64(planTextSize)), 0).
WithExtra(map[string]interface{}{
"type": sigName,
"size": planTextSize,
}).WithVirtual(virtGas, 0), nil
}
// OnHashing
func (pl *pricelistV0) OnHashing(dataSize int) GasCharge {
return newGasCharge("OnHashing", pl.hashingBase+int64(dataSize)*pl.hashingPerByte, 0)
return newGasCharge("OnHashing", pl.hashingBase+int64(dataSize)*pl.hashingPerByte, 0).WithExtra(dataSize).WithVirtual(77300, 0)
}
// OnComputeUnsealedSectorCid
func (pl *pricelistV0) OnComputeUnsealedSectorCid(proofType abi.RegisteredSealProof, pieces []abi.PieceInfo) GasCharge {
// TODO: this needs more cost tunning, check with @lotus
return newGasCharge("OnComputeUnsealedSectorCid", pl.computeUnsealedSectorCidBase, 0).WithVirtual(pl.computeUnsealedSectorCidBase*24500, 0)
return newGasCharge("OnComputeUnsealedSectorCid", pl.computeUnsealedSectorCidBase, 0).WithVirtual(382370, 0)
}
// OnVerifySeal
func (pl *pricelistV0) OnVerifySeal(info abi.SealVerifyInfo) GasCharge {
// TODO: this needs more cost tunning, check with @lotus
return newGasCharge("OnVerifySeal", pl.verifySealBase, 0).WithVirtual(pl.verifySealBase*177500, 0)
return newGasCharge("OnVerifySeal", pl.verifySealBase, 0).WithVirtual(199954003, 0)
}
// OnVerifyPost
func (pl *pricelistV0) OnVerifyPost(info abi.WindowPoStVerifyInfo) GasCharge {
// TODO: this needs more cost tunning, check with @lotus
return newGasCharge("OnVerifyPost", pl.verifyPostBase, 0)
return newGasCharge("OnVerifyPost", pl.verifyPostBase, 0).WithVirtual(2629471704, 0).WithExtra(len(info.ChallengedSectors))
}
// OnVerifyConsensusFault
func (pl *pricelistV0) OnVerifyConsensusFault() GasCharge {
return newGasCharge("OnVerifyConsensusFault", pl.verifyConsensusFault, 0)
return newGasCharge("OnVerifyConsensusFault", pl.verifyConsensusFault, 0).WithVirtual(551935, 0)
}

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@ -264,6 +264,7 @@ func (rt *Runtime) CreateActor(codeID cid.Cid, address address.Address) {
if err != nil {
panic(aerrors.Fatalf("creating actor entry: %v", err))
}
_ = rt.chargeGasSafe(gasOnActorExec)
}
func (rt *Runtime) DeleteActor(addr address.Address) {
@ -284,10 +285,10 @@ func (rt *Runtime) DeleteActor(addr address.Address) {
if err := rt.state.DeleteActor(rt.Message().Receiver()); err != nil {
panic(aerrors.Fatalf("failed to delete actor: %s", err))
}
_ = rt.chargeGasSafe(gasOnActorExec)
}
func (rt *Runtime) Syscalls() vmr.Syscalls {
// TODO: Make sure this is wrapped in something that charges gas for each of the calls
return rt.sys
}
@ -367,6 +368,7 @@ func (rt *Runtime) Send(to address.Address, method abi.MethodNum, m vmr.CBORMars
log.Warnf("vmctx send failed: to: %s, method: %d: ret: %d, err: %s", to, method, ret, err)
return nil, err.RetCode()
}
_ = rt.chargeGasSafe(gasOnActorExec)
return &dumbWrapperType{ret}, 0
}

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@ -35,6 +35,7 @@ import (
)
var log = logging.Logger("vm")
var gasOnActorExec = newGasCharge("OnActorExec", 0, 0)
// ResolveToKeyAddr returns the public key type of address (`BLS`/`SECP256K1`) of an account actor identified by `addr`.
func ResolveToKeyAddr(state types.StateTree, cst cbor.IpldStore, addr address.Address) (address.Address, aerrors.ActorError) {
@ -68,11 +69,13 @@ type gasChargingBlocks struct {
}
func (bs *gasChargingBlocks) Get(c cid.Cid) (block.Block, error) {
bs.chargeGas(newGasCharge("OnIpldGetStart", 0, 0))
blk, err := bs.under.Get(c)
if err != nil {
return nil, aerrors.Escalate(err, "failed to get block from blockstore")
}
bs.chargeGas(bs.pricelist.OnIpldGet(len(blk.RawData())))
bs.chargeGas(gasOnActorExec)
return blk, nil
}
@ -83,6 +86,7 @@ func (bs *gasChargingBlocks) Put(blk block.Block) error {
if err := bs.under.Put(blk); err != nil {
return aerrors.Escalate(err, "failed to write data to disk")
}
bs.chargeGas(gasOnActorExec)
return nil
}
@ -231,7 +235,9 @@ func (vm *VM) send(ctx context.Context, msg *types.Message, parent *Runtime,
if msg.Method != 0 {
var ret []byte
_ = rt.chargeGasSafe(gasOnActorExec)
ret, err := vm.Invoke(toActor, rt, msg.Method, msg.Params)
_ = rt.chargeGasSafe(newGasCharge("OnActorExecDone", 0, 0))
return ret, err
}
return nil, nil

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@ -1,12 +1,15 @@
package main
import (
"bufio"
"context"
"encoding/json"
"fmt"
"io"
"io/ioutil"
"math"
"net/http"
_ "net/http/pprof"
"os"
"runtime"
"runtime/pprof"
@ -226,21 +229,224 @@ func compStats(vals []float64) (float64, float64) {
return av, math.Sqrt(varsum / float64(len(vals)))
}
func tallyGasCharges(charges map[string][]float64, et *types.ExecutionTrace) {
for _, gc := range et.GasCharges {
type stats struct {
timeTaken meanVar
gasRatio meanVar
compGas := gc.ComputeGas + gc.VirtualComputeGas
ratio := float64(compGas) / float64(gc.TimeTaken.Nanoseconds())
extraCovar *covar
}
charges[gc.Name] = append(charges[gc.Name], 1/(ratio/GasPerNs))
//fmt.Printf("%s: %d, %s: %0.2f\n", gc.Name, compGas, gc.TimeTaken, 1/(ratio/GasPerNs))
type covar struct {
meanX float64
meanY float64
c float64
n float64
m2x float64
m2y float64
}
func (cov1 *covar) Covariance() float64 {
return cov1.c / (cov1.n - 1)
}
func (cov1 *covar) VarianceX() float64 {
return cov1.m2x / (cov1.n - 1)
}
func (v1 *covar) StddevX() float64 {
return math.Sqrt(v1.VarianceX())
}
func (cov1 *covar) VarianceY() float64 {
return cov1.m2y / (cov1.n - 1)
}
func (v1 *covar) StddevY() float64 {
return math.Sqrt(v1.VarianceY())
}
func (cov1 *covar) AddPoint(x, y float64) {
cov1.n += 1
dx := x - cov1.meanX
cov1.meanX += dx / cov1.n
dx2 := x - cov1.meanX
cov1.m2x += dx * dx2
dy := y - cov1.meanY
cov1.meanY += dy / cov1.n
dy2 := y - cov1.meanY
cov1.m2y += dy * dy2
cov1.c += dx * dy
}
func (cov1 *covar) Combine(cov2 *covar) {
if cov1.n == 0 {
*cov1 = *cov2
return
}
if cov2.n == 0 {
return
}
if cov1.n == 1 {
cpy := *cov2
cpy.AddPoint(cov2.meanX, cov2.meanY)
*cov1 = cpy
return
}
if cov2.n == 1 {
cov1.AddPoint(cov2.meanX, cov2.meanY)
}
out := covar{}
out.n = cov1.n + cov2.n
dx := cov1.meanX - cov2.meanX
out.meanX = cov1.meanX - dx*cov2.n/out.n
out.m2x = cov1.m2x + cov2.m2x + dx*dx*cov1.n*cov2.n/out.n
dy := cov1.meanY - cov2.meanY
out.meanY = cov1.meanY - dy*cov2.n/out.n
out.m2y = cov1.m2y + cov2.m2y + dy*dy*cov1.n*cov2.n/out.n
out.c = cov1.c + cov2.c + dx*dy*cov1.n*cov2.n/out.n
*cov1 = out
}
func (cov1 *covar) A() float64 {
return cov1.Covariance() / cov1.VarianceX()
}
func (cov1 *covar) B() float64 {
return cov1.meanY - cov1.meanX*cov1.A()
}
func (cov1 *covar) Correl() float64 {
return cov1.Covariance() / cov1.StddevX() / cov1.StddevY()
}
type meanVar struct {
n float64
mean float64
m2 float64
}
func (v1 *meanVar) AddPoint(value float64) {
// based on https://en.wikipedia.org/wiki/Algorithms_for_calculating_variance#Welford's_online_algorithm
v1.n += 1
delta := value - v1.mean
v1.mean += delta / v1.n
delta2 := value - v1.mean
v1.m2 += delta * delta2
}
func (v1 *meanVar) Variance() float64 {
return v1.m2 / (v1.n - 1)
}
func (v1 *meanVar) Mean() float64 {
return v1.mean
}
func (v1 *meanVar) Stddev() float64 {
return math.Sqrt(v1.Variance())
}
func (v1 *meanVar) Combine(v2 *meanVar) {
if v1.n == 0 {
*v1 = *v2
return
}
if v2.n == 0 {
return
}
if v1.n == 1 {
cpy := *v2
cpy.AddPoint(v1.mean)
*v1 = cpy
return
}
if v2.n == 1 {
v1.AddPoint(v2.mean)
return
}
newCount := v1.n + v2.n
delta := v2.mean - v1.mean
meanDelta := delta * v2.n / newCount
m2 := v1.m2 + v2.m2 + delta*meanDelta*v1.n
v1.n = newCount
v1.mean += meanDelta
v1.m2 = m2
}
func getExtras(ex interface{}) (*string, *float64) {
if t, ok := ex.(string); ok {
return &t, nil
}
if size, ok := ex.(float64); ok {
return nil, &size
}
if exMap, ok := ex.(map[string]interface{}); ok {
t, tok := exMap["type"].(string)
size, sok := exMap["size"].(float64)
if tok && sok {
return &t, &size
}
if tok {
return &t, nil
}
if sok {
return nil, &size
}
return nil, nil
}
return nil, nil
}
func tallyGasCharges(charges map[string]*stats, et types.ExecutionTrace) {
for i, gc := range et.GasCharges {
name := gc.Name
if name == "OnIpldGetStart" {
continue
}
tt := float64(gc.TimeTaken.Nanoseconds())
if name == "OnIpldGet" {
prev := et.GasCharges[i-1]
if prev.Name != "OnIpldGetStart" {
log.Warn("OnIpldGet without OnIpldGetStart")
}
tt += float64(prev.TimeTaken.Nanoseconds())
}
eType, eSize := getExtras(gc.Extra)
if eType != nil {
name += "-" + *eType
}
compGas := gc.VirtualComputeGas
if compGas == 0 {
compGas = 1
}
s := charges[name]
if s == nil {
s = new(stats)
charges[name] = s
}
if eSize != nil {
if s.extraCovar == nil {
s.extraCovar = &covar{}
}
s.extraCovar.AddPoint(*eSize, tt)
}
s.timeTaken.AddPoint(tt)
ratio := tt / float64(compGas) * GasPerNs
s.gasRatio.AddPoint(ratio)
}
for _, sub := range et.Subcalls {
tallyGasCharges(charges, &sub)
tallyGasCharges(charges, sub)
}
}
}
var importAnalyzeCmd = &cli.Command{
Name: "analyze",
Action: func(cctx *cli.Context) error {
@ -249,57 +455,143 @@ var importAnalyzeCmd = &cli.Command{
return nil
}
go func() {
http.ListenAndServe("localhost:6060", nil)
}()
fi, err := os.Open(cctx.Args().First())
if err != nil {
return err
}
var results []TipSetExec
for {
var tse TipSetExec
if err := json.NewDecoder(fi).Decode(&tse); err != nil {
if err != io.EOF {
return err
}
break
}
results = append(results, tse)
const nWorkers = 16
jsonIn := make(chan []byte, 2*nWorkers)
type result struct {
totalTime time.Duration
chargeStats map[string]*stats
expensiveInvocs []Invocation
}
chargeDeltas := make(map[string][]float64)
results := make(chan result, nWorkers)
for i := 0; i < nWorkers; i++ {
go func() {
chargeStats := make(map[string]*stats)
var totalTime time.Duration
const invocsKeep = 32
var expensiveInvocs = make([]Invocation, 0, 8*invocsKeep)
var leastExpensiveInvoc = time.Duration(0)
for {
b, ok := <-jsonIn
if !ok {
results <- result{
totalTime: totalTime,
chargeStats: chargeStats,
expensiveInvocs: expensiveInvocs,
}
return
}
var tse TipSetExec
err := json.Unmarshal(b, &tse)
if err != nil {
log.Warnf("error unmarshaling tipset: %+v", err)
continue
}
totalTime += tse.Duration
for _, inv := range tse.Trace {
if inv.Duration > leastExpensiveInvoc {
expensiveInvocs = append(expensiveInvocs, Invocation{
TipSet: tse.TipSet,
Invoc: inv,
})
}
tallyGasCharges(chargeStats, inv.ExecutionTrace)
}
if len(expensiveInvocs) > 4*invocsKeep {
sort.Slice(expensiveInvocs, func(i, j int) bool {
return expensiveInvocs[i].Invoc.Duration > expensiveInvocs[j].Invoc.Duration
})
leastExpensiveInvoc = expensiveInvocs[len(expensiveInvocs)-1].Invoc.Duration
n := 30
if len(expensiveInvocs) < n {
n = len(expensiveInvocs)
}
expensiveInvocs = expensiveInvocs[:n]
}
}
}()
}
var totalTipsets int64
reader := bufio.NewReader(fi)
for {
b, err := reader.ReadBytes('\n')
if err != nil && err != io.EOF {
if e, ok := err.(*json.SyntaxError); ok {
log.Warnf("syntax error at byte offset %d", e.Offset)
}
return err
}
totalTipsets++
jsonIn <- b
fmt.Fprintf(os.Stderr, "\rProcessed %d tipsets", totalTipsets)
if err == io.EOF {
break
}
}
close(jsonIn)
fmt.Fprintf(os.Stderr, "\n")
fmt.Fprintf(os.Stderr, "Collecting results\n")
var invocs []Invocation
var totalTime time.Duration
for i, r := range results {
_ = i
totalTime += r.Duration
for _, inv := range r.Trace {
invocs = append(invocs, Invocation{
TipSet: r.TipSet,
Invoc: inv,
})
cgas, vgas := countGasCosts(&inv.ExecutionTrace)
fmt.Printf("Invocation: %d %s: %s %d -> %0.2f\n", inv.Msg.Method, inv.Msg.To, inv.Duration, cgas+vgas, float64(GasPerNs*inv.Duration.Nanoseconds())/float64(cgas+vgas))
tallyGasCharges(chargeDeltas, &inv.ExecutionTrace)
}
}
var keys []string
for k := range chargeDeltas {
var charges = make(map[string]*stats)
for i := 0; i < nWorkers; i++ {
fmt.Fprintf(os.Stderr, "\rProcessing results from worker %d/%d", i+1, nWorkers)
res := <-results
invocs = append(invocs, res.expensiveInvocs...)
for k, v := range res.chargeStats {
s := charges[k]
if s == nil {
s = new(stats)
charges[k] = s
}
s.timeTaken.Combine(&v.timeTaken)
s.gasRatio.Combine(&v.gasRatio)
if v.extraCovar != nil {
if s.extraCovar == nil {
s.extraCovar = &covar{}
}
s.extraCovar.Combine(v.extraCovar)
}
}
totalTime += res.totalTime
}
fmt.Fprintf(os.Stderr, "\nCollecting gas keys\n")
for k := range charges {
keys = append(keys, k)
}
fmt.Println("Gas Price Deltas")
sort.Strings(keys)
for _, k := range keys {
vals := chargeDeltas[k]
av, stdev := compStats(vals)
fmt.Printf("%s: incr by %f (%f)\n", k, av, stdev)
s := charges[k]
fmt.Printf("%s: incr by %.4f~%.4f; tt %.4f~%.4f\n", k, s.gasRatio.Mean(), s.gasRatio.Stddev(),
s.timeTaken.Mean(), s.timeTaken.Stddev())
if s.extraCovar != nil {
fmt.Printf("\t correll: %.2f, tt = %.2f * extra + %.2f\n", s.extraCovar.Correl(),
s.extraCovar.A(), s.extraCovar.B())
fmt.Printf("\t covar: %.2f, extra: %.2f~%.2f, tt2: %.2f~%.2f, count %.0f\n",
s.extraCovar.Covariance(), s.extraCovar.meanX, s.extraCovar.StddevX(),
s.extraCovar.meanY, s.extraCovar.StddevY(), s.extraCovar.n)
}
}
sort.Slice(invocs, func(i, j int) bool {
@ -307,9 +599,20 @@ var importAnalyzeCmd = &cli.Command{
})
fmt.Println("Total time: ", totalTime)
fmt.Println("Average time per epoch: ", totalTime/time.Duration(len(results)))
fmt.Println("Average time per epoch: ", totalTime/time.Duration(totalTipsets))
if actorExec, ok := charges["OnActorExec"]; ok {
timeInActors := actorExec.timeTaken.Mean() * actorExec.timeTaken.n
fmt.Printf("Avarage time per epoch in actors: %s (%.1f%%)\n", time.Duration(timeInActors)/time.Duration(totalTipsets), timeInActors/float64(totalTime)*100)
}
if actorExecDone, ok := charges["OnActorExecDone"]; ok {
timeInActors := actorExecDone.timeTaken.Mean() * actorExecDone.timeTaken.n
fmt.Printf("Avarage time per epoch in OnActorExecDone %s (%.1f%%)\n", time.Duration(timeInActors)/time.Duration(totalTipsets), timeInActors/float64(totalTime)*100)
}
n := 30
if len(invocs) < n {
n = len(invocs)
}
fmt.Printf("Top %d most expensive calls:\n", n)
for i := 0; i < n; i++ {
inv := invocs[i].Invoc

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@ -0,0 +1,47 @@
package main
import (
"math/rand"
"testing"
)
func TestMeanVar(t *testing.T) {
N := 16
ss := make([]*meanVar, N)
rng := rand.New(rand.NewSource(1))
for i := 0; i < N; i++ {
ss[i] = &meanVar{}
maxJ := rng.Intn(1000)
for j := 0; j < maxJ; j++ {
ss[i].AddPoint(rng.NormFloat64()*5 + 500)
}
t.Logf("mean: %f, stddev: %f, count %f", ss[i].mean, ss[i].Stddev(), ss[i].n)
}
out := &meanVar{}
for i := 0; i < N; i++ {
out.Combine(ss[i])
t.Logf("combine: mean: %f, stddev: %f", out.mean, out.Stddev())
}
}
func TestCovar(t *testing.T) {
N := 16
ss := make([]*covar, N)
rng := rand.New(rand.NewSource(1))
for i := 0; i < N; i++ {
ss[i] = &covar{}
maxJ := rng.Intn(1000) + 500
for j := 0; j < maxJ; j++ {
x := rng.NormFloat64()*5 + 500
ss[i].AddPoint(x, x*2-1000)
}
t.Logf("corell: %f, y = %f*x+%f @%.0f", ss[i].Correl(), ss[i].A(), ss[i].B(), ss[i].n)
t.Logf("\txVar: %f yVar: %f covar: %f", ss[i].StddevX(), ss[i].StddevY(), ss[i].Covariance())
}
out := &covar{}
for i := 0; i < N; i++ {
out.Combine(ss[i])
t.Logf("combine: corell: %f, y = %f*x+%f", out.Correl(), out.A(), out.B())
t.Logf("\txVar: %f yVar: %f covar: %f", out.StddevX(), out.StddevY(), out.Covariance())
}
}