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Merge pull request #5369 from filecoin-project/feat/gas-premium-55

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Use 55th percentile instead of median for gas-price
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Łukasz Magiera 2021-01-19 19:10:47 +01:00 committed by GitHub
commit 0a85dc6232
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1 changed files with 3 additions and 1 deletions
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4
node/impl/full/gas.go
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@ -93,13 +93,15 @@ type gasMeta struct {
limit int64 limit int64
} }
// finds 55th percntile instead of median to put negative pressure on gas price
func medianGasPremium(prices []gasMeta, blocks int) abi.TokenAmount { func medianGasPremium(prices []gasMeta, blocks int) abi.TokenAmount {
sort.Slice(prices, func(i, j int) bool { sort.Slice(prices, func(i, j int) bool {
// sort desc by price // sort desc by price
return prices[i].price.GreaterThan(prices[j].price) return prices[i].price.GreaterThan(prices[j].price)
}) })
at := build.BlockGasTarget * int64(blocks) / 2 at := build.BlockGasTarget * int64(blocks) / 2 // 50th
at += build.BlockGasTarget * int64(blocks) / (2 * 20) // move 5% further
prev1, prev2 := big.Zero(), big.Zero() prev1, prev2 := big.Zero(), big.Zero()
for _, price := range prices { for _, price := range prices {
prev1, prev2 = price.price, prev1 prev1, prev2 = price.price, prev1