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params: update 4844 params

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This commit is contained in:
Felix Lange 2023-08-25 20:17:58 +02:00 committed by lightclient
parent b8adb4cb0c
commit 879d17e395
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GPG key ID: 75C916AFEE20183E
3 changed files with 14 additions and 12 deletions
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4
consensus/misc/eip4844/eip4844.go
View file

@ -69,10 +69,10 @@ func VerifyEIP4844Header(parent, header *types.Header) error {
// blobs on top of the excess blob gas.
func CalcExcessBlobGas(parentExcessBlobGas uint64, parentBlobGasUsed uint64) uint64 {
excessBlobGas := parentExcessBlobGas + parentBlobGasUsed
if excessBlobGas < params.BlobTxTargetBlobGasPerBlock {
if excessBlobGas < params.TargetBlobGasPerBlock {
return 0
}
return excessBlobGas - params.BlobTxTargetBlobGasPerBlock
return excessBlobGas - params.TargetBlobGasPerBlock
}
// CalcBlobFee calculates the blobfee from the header's excess blob gas field.

16
consensus/misc/eip4844/eip4844_test.go
View file

@ -34,20 +34,20 @@ func TestCalcExcessBlobGas(t *testing.T) {
// slots are below - or equal - to the target.
{0, 0, 0},
{0, 1, 0},
{0, params.BlobTxTargetBlobGasPerBlock / params.BlobTxBlobGasPerBlob, 0},
{0, params.TargetBlobGasPerBlock / params.BlobTxBlobGasPerBlob, 0},
// If the target blob gas is exceeded, the excessBlobGas should increase
// by however much it was overshot
{0, (params.BlobTxTargetBlobGasPerBlock / params.BlobTxBlobGasPerBlob) + 1, params.BlobTxBlobGasPerBlob},
{1, (params.BlobTxTargetBlobGasPerBlock / params.BlobTxBlobGasPerBlob) + 1, params.BlobTxBlobGasPerBlob + 1},
{1, (params.BlobTxTargetBlobGasPerBlock / params.BlobTxBlobGasPerBlob) + 2, 2*params.BlobTxBlobGasPerBlob + 1},
{0, (params.TargetBlobGasPerBlock / params.BlobTxBlobGasPerBlob) + 1, params.BlobTxBlobGasPerBlob},
{1, (params.TargetBlobGasPerBlock / params.BlobTxBlobGasPerBlob) + 1, params.BlobTxBlobGasPerBlob + 1},
{1, (params.TargetBlobGasPerBlock / params.BlobTxBlobGasPerBlob) + 2, 2*params.BlobTxBlobGasPerBlob + 1},
// The excess blob gas should decrease by however much the target was
// under-shot, capped at zero.
{params.BlobTxTargetBlobGasPerBlock, params.BlobTxTargetBlobGasPerBlock / params.BlobTxBlobGasPerBlob, params.BlobTxTargetBlobGasPerBlock},
{params.BlobTxTargetBlobGasPerBlock, (params.BlobTxTargetBlobGasPerBlock / params.BlobTxBlobGasPerBlob) - 1, params.BlobTxBlobGasPerBlob},
{params.BlobTxTargetBlobGasPerBlock, (params.BlobTxTargetBlobGasPerBlock / params.BlobTxBlobGasPerBlob) - 2, 0},
{params.BlobTxBlobGasPerBlob - 1, (params.BlobTxTargetBlobGasPerBlock / params.BlobTxBlobGasPerBlob) - 1, 0},
{params.TargetBlobGasPerBlock, params.TargetBlobGasPerBlock / params.BlobTxBlobGasPerBlob, params.TargetBlobGasPerBlock},
{params.TargetBlobGasPerBlock, (params.TargetBlobGasPerBlock / params.BlobTxBlobGasPerBlob) - 1, params.BlobTxBlobGasPerBlob},
{params.TargetBlobGasPerBlock, (params.TargetBlobGasPerBlock / params.BlobTxBlobGasPerBlob) - 2, 0},
{params.BlobTxBlobGasPerBlob - 1, (params.TargetBlobGasPerBlock / params.BlobTxBlobGasPerBlob) - 1, 0},
}
for _, tt := range tests {
result := CalcExcessBlobGas(tt.excess, tt.blobs*params.BlobTxBlobGasPerBlob)

6
params/protocol_params.go
View file

@ -167,12 +167,14 @@ const (
BlobTxBytesPerFieldElement = 32 // Size in bytes of a field element
BlobTxFieldElementsPerBlob = 4096 // Number of field elements stored in a single data blob
BlobTxHashVersion = 0x01 // Version byte of the commitment hash
MaxBlobGasPerBlock = 1 << 19 // Maximum consumable blob gas for data blobs per block
BlobTxTargetBlobGasPerBlock = 1 << 18 // Target consumable blob gas for data blobs per block (for 1559-like pricing)
BlobTxBlobGasPerBlob = 1 << 17 // Gas consumption of a single data blob (== blob byte size)
BlobTxMinBlobGasprice = 1 // Minimum gas price for data blobs
BlobTxBlobGaspriceUpdateFraction = 2225652 // Controls the maximum rate of change for blob gas price
BlobTxPointEvaluationPrecompileGas = 50000 // Gas price for the point evaluation precompile.
MaxBlobGasPerBlock = 6 * BlobTxBlobGasPerBlob // Maximum consumable blob gas for data blobs per block
TargetBlobGasPerBlock = 3 * BlobTxBlobGasPerBlob // Target consumable blob gas for data blobs per block (for 1559-like pricing)
)
// Gas discount table for BLS12-381 G1 and G2 multi exponentiation operations