import stats, os, strformat, times, ../tests/[testblockutil], ../beacon_chain/[extras], ../beacon_chain/ssz/[merkleization, ssz_serialization], ../beacon_chain/spec/[beaconstate, crypto, datatypes, digest, helpers, presets] template withTimer*(stats: var RunningStat, body: untyped) = # TODO unify timing somehow let start = cpuTime() block: body let stop = cpuTime() stats.push stop - start template withTimerRet*(stats: var RunningStat, body: untyped): untyped = let start = cpuTime() let tmp = block: body let stop = cpuTime() stats.push stop - start tmp func verifyConsensus*(state: BeaconState, attesterRatio: auto) = if attesterRatio < 0.63: doAssert state.current_justified_checkpoint.epoch == 0 doAssert state.finalized_checkpoint.epoch == 0 # Quorum is 2/3 of validators, and at low numbers, quantization effects # can dominate, so allow for play above/below attesterRatio of 2/3. if attesterRatio < 0.72: return let current_epoch = get_current_epoch(state) if current_epoch >= 3: doAssert state.current_justified_checkpoint.epoch + 1 >= current_epoch if current_epoch >= 4: doAssert state.finalized_checkpoint.epoch + 2 >= current_epoch proc loadGenesis*(validators: Natural, validate: bool): ref HashedBeaconState = let fn = &"genesim_{const_preset}_{validators}_{SPEC_VERSION}.ssz" let res = (ref HashedBeaconState)() if fileExists(fn): res.data = SSZ.loadFile(fn, BeaconState) res.root = hash_tree_root(res.data) if res.data.slot != GENESIS_SLOT: echo "Can only start from genesis state" quit 1 if res.data.validators.len != validators: echo &"Supplied genesis file has {res.data.validators.len} validators, while {validators} where requested, running anyway" echo &"Loaded {fn}..." # TODO check that the private keys are interop keys res else: echo "Genesis file not found, making one up (use beacon_node createTestnet to make one)" echo "Preparing validators..." let flags = if validate: {} else: {skipBlsValidation} deposits = makeInitialDeposits(validators.uint64, flags) echo "Generating Genesis..." res.data = initialize_beacon_state_from_eth1(defaultRuntimePreset, Eth2Digest(), 0, deposits, flags)[] res.root = hash_tree_root(res.data) echo &"Saving to {fn}..." SSZ.saveFile(fn, res.data) res proc printTimers*[Timers: enum]( validate: bool, timers: array[Timers, RunningStat] ) = proc fmtTime(t: float): string = &"{t * 1000 :>12.3f}, " echo "All time are ms" echo &"{\"Average\" :>12}, {\"StdDev\" :>12}, {\"Min\" :>12}, " & &"{\"Max\" :>12}, {\"Samples\" :>12}, {\"Test\" :>12}" if not validate: echo "Validation is turned off meaning that no BLS operations are performed" for t in Timers: echo fmtTime(timers[t].mean), fmtTime(timers[t].standardDeviationS), fmtTime(timers[t].min), fmtTime(timers[t].max), &"{timers[t].n :>12}, ", $t proc printTimers*[Timers: enum]( state: BeaconState, attesters: RunningStat, validate: bool, timers: array[Timers, RunningStat]) = echo "Validators: ", state.validators.len, ", epoch length: ", SLOTS_PER_EPOCH echo "Validators per attestation (mean): ", attesters.mean printTimers(validate, timers)