[ETCM-571] Add metric on the time taken to evaluate a submitted PoW #932
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Description
Added a metric on how long a node takes to evaluate if a solution submitted by a miner is valid (without broadcasting it)
Proposed Solution
A timer metric was added to
EthashBlockGenerator.getPrepared
methodTesting
insomnia_workspace.json
was updated to include theeth_submitWork
call with bogus data. This call can be used to simulate a miner sending the result of the PoW (does not need to be a real one). Several calls over time need to be made. A panel was added to Grafana that allows to see the new metric