lighthouse/eth2/state_processing/benches/bench_epoch_processing.rs

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use criterion::Criterion;
use criterion::{black_box, Benchmark};
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use ssz::TreeHash;
use state_processing::{
per_epoch_processing,
per_epoch_processing::{
calculate_active_validator_indices, calculate_attester_sets, clean_attestations,
process_crosslinks, process_eth1_data, process_justification,
process_rewards_and_penalities, process_validator_registry, update_active_tree_index_roots,
update_latest_slashed_balances,
},
};
use types::test_utils::TestingBeaconStateBuilder;
use types::{validator_registry::get_active_validator_indices, *};
pub const BENCHING_SAMPLE_SIZE: usize = 10;
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pub const SMALL_BENCHING_SAMPLE_SIZE: usize = 10;
/// Run the benchmarking suite on a foundation spec with 16,384 validators.
pub fn bench_epoch_processing_n_validators(c: &mut Criterion, validator_count: usize) {
let spec = ChainSpec::foundation();
let mut builder =
TestingBeaconStateBuilder::from_default_keypairs_file_if_exists(validator_count, &spec);
// Set the state to be just before an epoch transition.
let target_slot = (spec.genesis_epoch + 4).end_slot(spec.slots_per_epoch);
builder.teleport_to_slot(target_slot, &spec);
// Builds all caches; benches will not contain shuffling/committee building times.
builder.build_caches(&spec).unwrap();
// Inserts one attestation with full participation for each committee able to include an
// attestation in this state.
builder.insert_attestations(&spec);
let (state, _keypairs) = builder.build();
// Assert that the state has an attestations for each committee that is able to include an
// attestation in the state.
let committees_per_epoch = spec.get_epoch_committee_count(validator_count);
let committees_per_slot = committees_per_epoch / spec.slots_per_epoch;
let previous_epoch_attestations = committees_per_epoch;
let current_epoch_attestations =
committees_per_slot * (spec.slots_per_epoch - spec.min_attestation_inclusion_delay);
assert_eq!(
state.latest_attestations.len() as u64,
previous_epoch_attestations + current_epoch_attestations,
"The state should have an attestation for each committee."
);
// Assert that each attestation in the state has full participation.
let committee_size = validator_count / committees_per_epoch as usize;
for a in &state.latest_attestations {
assert_eq!(
a.aggregation_bitfield.num_set_bits(),
committee_size,
"Each attestation in the state should have full participation"
);
}
// Assert that we will run the first arm of process_rewards_and_penalities
let epochs_since_finality = state.next_epoch(&spec) - state.finalized_epoch;
assert_eq!(
epochs_since_finality, 4,
"Epochs since finality should be 4"
);
bench_epoch_processing(c, &state, &spec, &format!("{}_validators", validator_count));
}
/// Run the detailed benchmarking suite on the given `BeaconState`.
///
/// `desc` will be added to the title of each bench.
fn bench_epoch_processing(c: &mut Criterion, state: &BeaconState, spec: &ChainSpec, desc: &str) {
let state_clone = state.clone();
let spec_clone = spec.clone();
c.bench(
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&format!("{}/epoch_processing", desc),
Benchmark::new("calculate_active_validator_indices", move |b| {
b.iter_batched(
|| state_clone.clone(),
|mut state| {
calculate_active_validator_indices(&mut state, &spec_clone);
state
},
criterion::BatchSize::SmallInput,
)
})
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.sample_size(BENCHING_SAMPLE_SIZE),
);
let state_clone = state.clone();
let spec_clone = spec.clone();
let active_validator_indices = calculate_active_validator_indices(&state, &spec);
c.bench(
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&format!("{}/epoch_processing", desc),
Benchmark::new("calculate_current_total_balance", move |b| {
b.iter_batched(
|| state_clone.clone(),
|state| {
state.get_total_balance(&active_validator_indices[..], &spec_clone);
state
},
criterion::BatchSize::SmallInput,
)
})
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.sample_size(BENCHING_SAMPLE_SIZE),
);
let state_clone = state.clone();
let spec_clone = spec.clone();
c.bench(
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&format!("{}/epoch_processing", desc),
Benchmark::new("calculate_previous_total_balance", move |b| {
b.iter_batched(
|| state_clone.clone(),
|state| {
state.get_total_balance(
&get_active_validator_indices(
&state.validator_registry,
state.previous_epoch(&spec_clone),
)[..],
&spec_clone,
);
state
},
criterion::BatchSize::SmallInput,
)
})
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.sample_size(BENCHING_SAMPLE_SIZE),
);
let state_clone = state.clone();
let spec_clone = spec.clone();
c.bench(
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&format!("{}/epoch_processing", desc),
Benchmark::new("process_eth1_data", move |b| {
b.iter_batched(
|| state_clone.clone(),
|mut state| {
process_eth1_data(&mut state, &spec_clone);
state
},
criterion::BatchSize::SmallInput,
)
})
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.sample_size(BENCHING_SAMPLE_SIZE),
);
let state_clone = state.clone();
let spec_clone = spec.clone();
let active_validator_indices = calculate_active_validator_indices(&state, &spec);
c.bench(
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&format!("{}/epoch_processing", desc),
Benchmark::new("calculate_attester_sets", move |b| {
b.iter_batched(
|| state_clone.clone(),
|mut state| {
calculate_attester_sets(&mut state, &active_validator_indices, &spec_clone)
.unwrap();
state
},
criterion::BatchSize::SmallInput,
)
})
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.sample_size(BENCHING_SAMPLE_SIZE),
);
let state_clone = state.clone();
let spec_clone = spec.clone();
let previous_epoch = state.previous_epoch(&spec);
let active_validator_indices = calculate_active_validator_indices(&state, &spec);
let attesters = calculate_attester_sets(&state, &active_validator_indices, &spec).unwrap();
let current_total_balance = state.get_total_balance(&active_validator_indices[..], &spec);
let previous_total_balance = state.get_total_balance(
&get_active_validator_indices(&state.validator_registry, previous_epoch)[..],
&spec,
);
c.bench(
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&format!("{}/epoch_processing", desc),
Benchmark::new("process_justification", move |b| {
b.iter_batched(
|| state_clone.clone(),
|mut state| {
process_justification(
&mut state,
current_total_balance,
previous_total_balance,
attesters.balances.previous_epoch_boundary,
attesters.balances.current_epoch_boundary,
&spec_clone,
);
state
},
criterion::BatchSize::SmallInput,
)
})
.sample_size(10),
);
let state_clone = state.clone();
let spec_clone = spec.clone();
c.bench(
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&format!("{}/epoch_processing", desc),
Benchmark::new("process_crosslinks", move |b| {
b.iter_batched(
|| state_clone.clone(),
|mut state| black_box(process_crosslinks(&mut state, &spec_clone).unwrap()),
criterion::BatchSize::SmallInput,
)
})
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.sample_size(BENCHING_SAMPLE_SIZE),
);
let mut state_clone = state.clone();
let spec_clone = spec.clone();
let previous_epoch = state.previous_epoch(&spec);
let active_validator_indices = calculate_active_validator_indices(&state, &spec);
let attesters = calculate_attester_sets(&state, &active_validator_indices, &spec).unwrap();
let previous_total_balance = state.get_total_balance(
&get_active_validator_indices(&state.validator_registry, previous_epoch)[..],
&spec,
);
let winning_root_for_shards = process_crosslinks(&mut state_clone, &spec).unwrap();
c.bench(
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&format!("{}/epoch_processing", desc),
Benchmark::new("process_rewards_and_penalties", move |b| {
b.iter_batched(
|| state_clone.clone(),
|mut state| {
process_rewards_and_penalities(
&mut state,
&attesters,
previous_total_balance,
&winning_root_for_shards,
&spec_clone,
)
.unwrap();
state
},
criterion::BatchSize::SmallInput,
)
})
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.sample_size(SMALL_BENCHING_SAMPLE_SIZE),
);
let state_clone = state.clone();
let spec_clone = spec.clone();
c.bench(
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&format!("{}/epoch_processing", desc),
Benchmark::new("process_ejections", move |b| {
b.iter_batched(
|| state_clone.clone(),
|mut state| {
state.process_ejections(&spec_clone);
state
},
criterion::BatchSize::SmallInput,
)
})
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.sample_size(BENCHING_SAMPLE_SIZE),
);
let mut state_clone = state.clone();
let spec_clone = spec.clone();
let previous_epoch = state.previous_epoch(&spec);
let active_validator_indices = calculate_active_validator_indices(&state, &spec);
let attesters = calculate_attester_sets(&state, &active_validator_indices, &spec).unwrap();
let current_total_balance = state.get_total_balance(&active_validator_indices[..], spec);
let previous_total_balance = state.get_total_balance(
&get_active_validator_indices(&state.validator_registry, previous_epoch)[..],
&spec,
);
assert_eq!(
state_clone.finalized_epoch, state_clone.validator_registry_update_epoch,
"The last registry update should be at the last finalized epoch."
);
process_justification(
&mut state_clone,
current_total_balance,
previous_total_balance,
attesters.balances.previous_epoch_boundary,
attesters.balances.current_epoch_boundary,
spec,
);
assert!(
state_clone.finalized_epoch > state_clone.validator_registry_update_epoch,
"The state should have been finalized."
);
c.bench(
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&format!("{}/epoch_processing", desc),
Benchmark::new("process_validator_registry", move |b| {
b.iter_batched(
|| state_clone.clone(),
|mut state| {
process_validator_registry(&mut state, &spec_clone).unwrap();
state
},
criterion::BatchSize::SmallInput,
)
})
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.sample_size(BENCHING_SAMPLE_SIZE),
);
let state_clone = state.clone();
let spec_clone = spec.clone();
c.bench(
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&format!("{}/epoch_processing", desc),
Benchmark::new("update_active_tree_index_roots", move |b| {
b.iter_batched(
|| state_clone.clone(),
|mut state| {
update_active_tree_index_roots(&mut state, &spec_clone).unwrap();
state
},
criterion::BatchSize::SmallInput,
)
})
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.sample_size(BENCHING_SAMPLE_SIZE),
);
let state_clone = state.clone();
let spec_clone = spec.clone();
c.bench(
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&format!("{}/epoch_processing", desc),
Benchmark::new("update_latest_slashed_balances", move |b| {
b.iter_batched(
|| state_clone.clone(),
|mut state| {
update_latest_slashed_balances(&mut state, &spec_clone);
state
},
criterion::BatchSize::SmallInput,
)
})
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.sample_size(BENCHING_SAMPLE_SIZE),
);
let state_clone = state.clone();
let spec_clone = spec.clone();
c.bench(
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&format!("{}/epoch_processing", desc),
Benchmark::new("clean_attestations", move |b| {
b.iter_batched(
|| state_clone.clone(),
|mut state| {
clean_attestations(&mut state, &spec_clone);
state
},
criterion::BatchSize::SmallInput,
)
})
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.sample_size(BENCHING_SAMPLE_SIZE),
);
let state_clone = state.clone();
let spec_clone = spec.clone();
c.bench(
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&format!("{}/epoch_processing", desc),
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Benchmark::new("per_epoch_processing", move |b| {
b.iter_batched(
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|| state_clone.clone(),
|mut state| black_box(per_epoch_processing(&mut state, &spec_clone).unwrap()),
criterion::BatchSize::SmallInput,
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)
})
.sample_size(SMALL_BENCHING_SAMPLE_SIZE),
);
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let state_clone = state.clone();
c.bench(
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&format!("{}/epoch_processing", desc),
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Benchmark::new("tree_hash_state", move |b| {
b.iter(|| black_box(state_clone.hash_tree_root()))
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})
.sample_size(SMALL_BENCHING_SAMPLE_SIZE),
);
}