feat(rpc, reth-bench): reth_newPayload methods for reth-bench (#22133)

Co-authored-by: Amp <amp@ampcode.com>
Co-authored-by: Georgios Konstantopoulos <me@gakonst.com>

crates/node/builder/src/rpc.rs

@@ -1,6 +1,7 @@
 //! Builder support for rpc components.
 
 pub use jsonrpsee::server::middleware::rpc::{RpcService, RpcServiceBuilder};
+use reth_engine_tree::tree::WaitForCaches;
 pub use reth_engine_tree::tree::{BasicEngineValidator, EngineValidator};
 pub use reth_rpc_builder::{middleware::RethRpcMiddleware, Identity, Stack};
 pub use reth_trie_db::ChangesetCache;
@@ -1278,10 +1279,8 @@ pub trait PayloadValidatorBuilder<Node: FullNodeComponents>: Send + Sync + Clone
 /// for block execution, state validation, and fork handling.
 pub trait EngineValidatorBuilder<Node: FullNodeComponents>: Send + Sync + Clone {
     /// The tree validator type that will be used by the consensus engine.
-    type EngineValidator: EngineValidator<
-        <Node::Types as NodeTypes>::Payload,
-        <Node::Types as NodeTypes>::Primitives,
-    >;
+    type EngineValidator: EngineValidator<<Node::Types as NodeTypes>::Payload, <Node::Types as NodeTypes>::Primitives>
+        + WaitForCaches;
 
     /// Builds the tree validator for the consensus engine.
     ///

crates/node/core/src/args/benchmark_args.rs

@@ -58,6 +58,14 @@ pub struct BenchmarkArgs {
     /// The path to the output directory for granular benchmark results.
     #[arg(long, short, value_name = "BENCHMARK_OUTPUT", verbatim_doc_comment)]
     pub output: Option<PathBuf>,
+
+    /// Use `reth_newPayload` endpoint instead of `engine_newPayload*`.
+    ///
+    /// The `reth_newPayload` endpoint is a reth-specific extension that takes `ExecutionData`
+    /// directly, waits for persistence and cache updates to complete before processing,
+    /// and returns server-side timing breakdowns (latency, persistence wait, cache wait).
+    #[arg(long, default_value = "false", verbatim_doc_comment)]
+    pub reth_new_payload: bool,
 }
 
 #[cfg(test)]