add a manual benchmark to measure the commit

examples/bench_commit.rs

+use std::time::Instant;
+
+use ark_ec::CurveGroup;
+use ark_ff::PrimeField;
+use ark_poly::{univariate::DensePolynomial, DenseUVPolynomial};
+use ark_std::{ops::Div, rand::RngCore};
+
+use komodo::zk;
+use rand::rngs::ThreadRng;
+
+fn run<F, G, P, R>(degrees: &Vec<usize>, curve: &str)
+where
+    F: PrimeField,
+    G: CurveGroup<ScalarField = F>,
+    P: DenseUVPolynomial<F>,
+    R: RngCore,
+    for<'a, 'b> &'a P: Div<&'b P, Output = P>,
+{
+    eprintln!("curve: {}", curve);
+    let rng = &mut rand::thread_rng();
+
+    let max_degree = *degrees.iter().max().unwrap_or(&0);
+
+    eprint!("building trusted setup for degree {}... ", max_degree);
+    let setup = zk::setup::<_, F, G>(max_degree, rng).unwrap();
+    eprintln!("done");
+
+    for (i, degree) in degrees.iter().enumerate() {
+        eprint!("     d: {} [{}/{}]\r", degree, i + 1, degrees.len());
+        let polynomial = P::rand(*degree, rng);
+
+        let start_time = Instant::now();
+        let _ = zk::commit(&setup, &polynomial);
+        let end_time = Instant::now();
+
+        println!(
+            "{}: {} -> {}",
+            curve,
+            degree,
+            end_time.duration_since(start_time).as_nanos()
+        );
+    }
+    eprintln!("");
+}
+
+/// ## example
+/// ```rust
+/// measure!(ark_pallas, degrees, G1=Projective, name="PALLAS");
+/// ```
+/// will produce
+/// ```rust
+/// run::<ark_pallas::Fr, ark_pallas::Projective, DensePolynomial<ark_pallas::Fr>, ThreadRng>(&degrees, "PALLAS");
+/// ```
+macro_rules! measure {
+    ($c:ident, $d:ident, G1=$g:ident, name=$n:expr) => {
+        run::<$c::Fr, $c::$g, DensePolynomial<$c::Fr>, ThreadRng>(&$d, $n);
+    };
+}
+
+fn main() {
+    let n = 20;
+
+    let mut degrees = Vec::with_capacity(n);
+    let mut cur = 1;
+    for _ in 1..n {
+        degrees.push(cur);
+        cur *= 2;
+    }
+
+    measure!(ark_pallas, degrees, G1 = Projective, name = "PALLAS");
+    measure!(
+        ark_bls12_381,
+        degrees,
+        G1 = G1Projective,
+        name = "BLS12-381"
+    );
+    measure!(ark_bn254, degrees, G1 = G1Projective, name = "BN-254");
+    measure!(ark_secp256k1, degrees, G1 = Projective, name = "SECP256-K1");
+    measure!(ark_secp256r1, degrees, G1 = Projective, name = "SECP256-R1");
+}