beacon/engine: prealloc capacity for map and slice (ethereum#29903)

* prealloc capacity for map and slice * revert unnecessary change
subquery · Sep 9, 2024 · 3408377 · 3408377
1 parent 5c59ffc
commit 3408377
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/beacon/engine/types.go b/beacon/engine/types.go
@@ -209,7 +209,7 @@ func ExecutableDataToBlock(params ExecutableData, versionedHashes []common.Hash,
 	if params.BaseFeePerGas != nil && (params.BaseFeePerGas.Sign() == -1 || params.BaseFeePerGas.BitLen() > 256) {
 		return nil, fmt.Errorf("invalid baseFeePerGas: %v", params.BaseFeePerGas)
 	}
-	var blobHashes []common.Hash
+	var blobHashes = make([]common.Hash, 0, len(txs))
 	for _, tx := range txs {
 		blobHashes = append(blobHashes, tx.BlobHashes()...)
 	}