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use commonware_coding::{Config, PhasedScheme};
use commonware_parallel::{Rayon, Sequential};
use commonware_utils::{NZUsize, NZU16};
use criterion::{criterion_main, BatchSize, Criterion};
use rand::{RngCore, SeedableRng as _};
use rand_chacha::ChaCha8Rng;
use shard_selection::SELECTIONS;
mod shard_selection;
mod zoda_phased;
pub(crate) fn bench_encode_generic<S: PhasedScheme>(name: &str, c: &mut Criterion) {
let mut rng = ChaCha8Rng::seed_from_u64(0);
let cases = [20, 22, 23].map(|i| 2usize.pow(i));
for data_length in cases.into_iter() {
for chunks in [10u16, 25, 50, 100, 250] {
for conc in [1, 8] {
let min = chunks / 3;
let config = Config {
minimum_shards: NZU16!(min),
extra_shards: NZU16!(chunks - min),
};
let strategy = Rayon::new(NZUsize!(conc)).unwrap();
c.bench_function(
&format!("{name}/msg_len={data_length} chunks={chunks} conc={conc}"),
|b| {
b.iter_batched(
|| {
let mut data = vec![0u8; data_length];
rng.fill_bytes(&mut data);
data
},
|data| {
if conc > 1 {
S::encode(&config, data.as_slice(), &strategy).unwrap()
} else {
S::encode(&config, data.as_slice(), &Sequential).unwrap()
}
},
BatchSize::SmallInput,
);
},
);
}
}
}
}
pub(crate) fn bench_decode_generic<S: PhasedScheme>(name: &str, c: &mut Criterion) {
let mut rng = ChaCha8Rng::seed_from_u64(0);
let cases = [20, 22, 23].map(|i| 2usize.pow(i));
for data_length in cases.into_iter() {
for chunks in [10u16, 25, 50, 100, 250] {
for conc in [1, 8] {
let min = chunks / 3;
let config = Config {
minimum_shards: NZU16!(min),
extra_shards: NZU16!(chunks - min),
};
let strategy = Rayon::new(NZUsize!(conc)).unwrap();
for selection in SELECTIONS {
let sel = selection.label();
c.bench_function(
&format!(
"{name}/msg_len={data_length} chunks={chunks} conc={conc} shard_selection={sel}"
),
|b| {
b.iter_batched(
|| {
let mut data = vec![0u8; data_length];
rng.fill_bytes(&mut data);
let (commitment, mut shards) = if conc > 1 {
S::encode(&config, data.as_slice(), &strategy).unwrap()
} else {
S::encode(&config, data.as_slice(), &Sequential).unwrap()
};
let my_shard = shards.pop().unwrap();
let indices = selection.indices(min);
let mut opt_shards: Vec<Option<_>> =
shards.into_iter().map(Some).collect();
let weak_shards: Vec<(u16, _)> = indices
.iter()
.map(|&i| {
let shard = opt_shards[i as usize].take().unwrap();
let (_, _, weak_shard) =
S::weaken(&config, &commitment, i, shard).unwrap();
(i, weak_shard)
})
.collect();
let my_index =
config.minimum_shards.get() + config.extra_shards.get() - 1;
let (checking_data, my_checked_shard, _) =
S::weaken(&config, &commitment, my_index, my_shard)
.unwrap();
(commitment, checking_data, my_checked_shard, weak_shards)
},
|(commitment, checking_data, my_checked_shard, weak_shards)| {
let mut checked_shards = weak_shards
.into_iter()
.map(|(idx, weak_shard)| {
S::check(
&config,
&commitment,
&checking_data,
idx,
weak_shard,
)
.unwrap()
})
.collect::<Vec<_>>();
checked_shards.push(my_checked_shard);
if conc > 1 {
S::decode(
&config,
&commitment,
checking_data,
checked_shards.iter(),
&strategy,
)
.unwrap()
} else {
S::decode(
&config,
&commitment,
checking_data,
checked_shards.iter(),
&Sequential,
)
.unwrap()
}
},
BatchSize::SmallInput,
);
},
);
}
}
}
}
}
criterion_main!(zoda_phased::benches);