e4eb0eb168
## Issue Addressed NA ## Proposed Changes - Use the pre-states from #2174 during block production. - Running this on Pyrmont shows block production times dropping from ~550ms to ~150ms. - Create `crit` and `warn` logs when a block is published to the API later than we expect. - On mainnet we are issuing a warn if the block is published more than 1s later than the slot start and a crit for more than 3s. - Rename some methods on the `SnapshotCache` for clarity. - Add the ability to pass the state root to `BeaconChain::produce_block_on_state` to avoid computing a state root. This is a very common LH optimization. - Add a metric that tracks how late we broadcast blocks received from the HTTP API. This is *technically* a duplicate of a `ValidatorMonitor` log, but I wanted to have it for the case where we aren't monitoring validators too. |
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