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