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Add a separate benchmark for pure-fixed multiscalar mul.

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This commit is contained in:
Henry de Valence 2019-02-14 07:16:20 -08:00
parent 092ff52cb0
commit 2c3629b30e
1 changed files with 37 additions and 17 deletions
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54
benches/dalek_benchmarks.rs
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@ -59,7 +59,7 @@ mod edwards_benches {
}); });
} }
criterion_group!{ criterion_group! {
name = edwards_benches; name = edwards_benches;
config = Criterion::default(); config = Criterion::default();
targets = targets =
@ -110,10 +110,29 @@ mod multiscalar_benches {
); );
} }
fn precomputed_vt_straus_helper(c: &mut Criterion, dynamic_fraction: f64) { fn vartime_precomputed_pure_static(c: &mut Criterion) {
c.bench_function_over_inputs(
"Variable-time fixed-base multiscalar multiplication",
move |b, &&total_size| {
let static_size = total_size;
let (static_scalars, static_points) = construct(static_size);
use curve25519_dalek::edwards::VartimeEdwardsPrecomputation;
use curve25519_dalek::traits::VartimePrecomputedMultiscalarMul;
let precomp = VartimeEdwardsPrecomputation::new(&static_points);
b.iter(|| precomp.vartime_multiscalar_mul(&static_scalars));
},
&MULTISCALAR_SIZES,
);
}
fn vartime_precomputed_helper(c: &mut Criterion, dynamic_fraction: f64) {
let label = format!( let label = format!(
"Variable-time mixed-base Straus ({:.2}pct dyn)", "Variable-time mixed-base multiscalar multiplication ({:.0}pct dyn)",
100.0*dynamic_fraction, 100.0 * dynamic_fraction,
); );
c.bench_function_over_inputs( c.bench_function_over_inputs(
&label, &label,
@ -141,28 +160,29 @@ mod multiscalar_benches {
); );
} }
fn precomputed_vt_straus_00_pct_dynamic(c: &mut Criterion) { fn vartime_precomputed_00_pct_dynamic(c: &mut Criterion) {
precomputed_vt_straus_helper(c, 0.0); vartime_precomputed_helper(c, 0.0);
} }
fn precomputed_vt_straus_20_pct_dynamic(c: &mut Criterion) { fn vartime_precomputed_20_pct_dynamic(c: &mut Criterion) {
precomputed_vt_straus_helper(c, 0.2); vartime_precomputed_helper(c, 0.2);
} }
fn precomputed_vt_straus_50_pct_dynamic(c: &mut Criterion) { fn vartime_precomputed_50_pct_dynamic(c: &mut Criterion) {
precomputed_vt_straus_helper(c, 0.5); vartime_precomputed_helper(c, 0.5);
} }
criterion_group!{ criterion_group! {
name = multiscalar_benches; name = multiscalar_benches;
// Lower the sample size to run the benchmarks faster // Lower the sample size to run the benchmarks faster
config = Criterion::default().sample_size(15); config = Criterion::default().sample_size(15);
targets = targets =
consttime_multiscalar_mul, consttime_multiscalar_mul,
vartime_multiscalar_mul, vartime_multiscalar_mul,
precomputed_vt_straus_00_pct_dynamic, vartime_precomputed_pure_static,
precomputed_vt_straus_20_pct_dynamic, vartime_precomputed_00_pct_dynamic,
precomputed_vt_straus_50_pct_dynamic, vartime_precomputed_20_pct_dynamic,
vartime_precomputed_50_pct_dynamic,
} }
} }
@ -198,7 +218,7 @@ mod ristretto_benches {
); );
} }
criterion_group!{ criterion_group! {
name = ristretto_benches; name = ristretto_benches;
config = Criterion::default(); config = Criterion::default();
targets = targets =
@ -219,7 +239,7 @@ mod montgomery_benches {
}); });
} }
criterion_group!{ criterion_group! {
name = montgomery_benches; name = montgomery_benches;
config = Criterion::default(); config = Criterion::default();
targets = montgomery_ladder, targets = montgomery_ladder,
@ -251,7 +271,7 @@ mod scalar_benches {
); );
} }
criterion_group!{ criterion_group! {
name = scalar_benches; name = scalar_benches;
config = Criterion::default(); config = Criterion::default();
targets = targets =