68 lines
1.6 KiB
Go
68 lines
1.6 KiB
Go
package main
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import (
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"fmt"
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"github.com/urfave/cli/v2"
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"github.com/filecoin-project/go-state-types/big"
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"github.com/filecoin-project/lotus/chain/actors/builtin"
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"github.com/filecoin-project/lotus/chain/types"
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)
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var infoCapacityGrowthSimCommand = &cli.Command{
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Name: "capacity-growth",
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Description: "List daily capacity growth over the course of the simulation starting at the end.",
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Action: func(cctx *cli.Context) (err 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 func() {
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if cerr := node.Close(); err == nil {
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err = cerr
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}
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}()
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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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firstEpoch := sim.GetStart().Height()
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ts := sim.GetHead()
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lastPower, err := getTotalPower(cctx.Context, sim.StateManager, ts)
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if err != nil {
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return err
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}
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lastHeight := ts.Height()
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for ts.Height() > firstEpoch && cctx.Err() == nil {
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ts, err = sim.Node.Chainstore.LoadTipSet(cctx.Context, ts.Parents())
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if err != nil {
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return err
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}
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newEpoch := ts.Height()
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if newEpoch != firstEpoch && newEpoch+builtin.EpochsInDay > lastHeight {
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continue
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}
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newPower, err := getTotalPower(cctx.Context, sim.StateManager, ts)
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if err != nil {
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return err
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}
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growthRate := big.Div(
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big.Mul(big.Sub(lastPower.RawBytePower, newPower.RawBytePower),
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big.NewInt(builtin.EpochsInDay)),
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big.NewInt(int64(lastHeight-newEpoch)),
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)
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lastPower = newPower
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lastHeight = newEpoch
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_, _ = fmt.Fprintf(cctx.App.Writer, "%s/day\n", types.SizeStr(growthRate))
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}
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return cctx.Err()
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},
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}
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