Module new_payload_fcu 

Runs the reth bench command, calling first newPayload for each block, then calling forkchoiceUpdated.

Supports configurable waiting behavior:

• --wait-time: Fixed sleep interval between blocks.
• --wait-for-persistence: Waits for every Nth block to be persisted using the reth_subscribePersistedBlock subscription, where N matches the engine’s persistence threshold. This ensures the benchmark doesn’t outpace persistence.

Both options can be used together or independently.

Structs

Command

reth benchmark new-payload-fcu command

PersistenceSubscription 🔒

Wrapper that keeps both the subscription stream and the underlying provider alive. The provider must be kept alive for the subscription to continue receiving events.

PersistenceWaiter 🔒

Encapsulates the block waiting logic.

Constants

PERSISTENCE_CHECKPOINT_TIMEOUT 🔒

Functions

engine_url_to_ws_url 🔒

Converts an engine API URL to the default RPC websocket URL.

wait_for_persistence 🔒

Waits until the persistence subscription reports that target has been persisted.