92 lines
2.1 KiB
Go
92 lines
2.1 KiB
Go
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package main
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import (
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"fmt"
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"syscall"
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"github.com/filecoin-project/lotus/chain/stmgr"
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"github.com/filecoin-project/lotus/chain/types"
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"github.com/filecoin-project/lotus/cmd/lotus-sim/simulation"
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"github.com/filecoin-project/lotus/lib/stati"
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"github.com/ipfs/go-cid"
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"github.com/streadway/quantile"
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"github.com/urfave/cli/v2"
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)
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var infoMessageSizeSimCommand = &cli.Command{
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Name: "message-size",
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Description: "Output information about message size distribution",
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Flags: []cli.Flag{
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&cli.Int64Flag{
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Name: "lookback",
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Value: 0,
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},
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},
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Action: func(cctx *cli.Context) error {
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node, err := open(cctx)
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if err != nil {
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return err
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}
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defer node.Close()
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go profileOnSignal(cctx, syscall.SIGUSR2)
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sim, err := node.LoadSim(cctx.Context, cctx.String("simulation"))
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if err != nil {
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return err
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}
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qpoints := []struct{ q, tol float64 }{
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{0.30, 0.01},
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{0.40, 0.01},
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{0.60, 0.01},
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{0.70, 0.01},
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{0.80, 0.01},
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{0.85, 0.01},
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{0.90, 0.01},
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{0.95, 0.001},
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{0.99, 0.0005},
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{0.999, 0.0001},
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}
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estims := make([]quantile.Estimate, len(qpoints))
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for i, p := range qpoints {
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estims[i] = quantile.Known(p.q, p.tol)
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}
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qua := quantile.New(estims...)
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hist, err := stati.NewHistogram([]float64{
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1 << 8, 1 << 10, 1 << 11, 1 << 12, 1 << 13, 1 << 14, 1 << 15, 1 << 16,
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})
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if err != nil {
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return err
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}
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err = sim.Walk(cctx.Context, cctx.Int64("lookback"), func(
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sm *stmgr.StateManager, ts *types.TipSet, stCid cid.Cid,
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messages []*simulation.AppliedMessage,
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) error {
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for _, m := range messages {
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msgSize := float64(m.ChainLength())
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qua.Add(msgSize)
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hist.Observe(msgSize)
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}
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return nil
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})
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if err != nil {
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return err
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}
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fmt.Println("Quantiles of message sizes:")
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for _, p := range qpoints {
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fmt.Printf("%.1f%%\t%.0f\n", p.q*100, qua.Get(p.q))
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}
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fmt.Println()
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fmt.Println("Histogram of message sizes:")
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fmt.Printf("Total\t%d\n", hist.Total())
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for i, b := range hist.Buckets[1:] {
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fmt.Printf("%.0f\t%d\t%.1f%%\n", b, hist.Get(i), 100*hist.GetRatio(i))
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}
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return nil
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},
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}
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