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