feat(fil-proofs-tooling): add logging to the benchy command

Author: dignifiedquire

fil-proofs-tooling/Cargo.toml

@@ -37,3 +37,5 @@ heim = "0.0.5"
 futures-preview = "0.3.0-alpha.17"
 raw-cpuid = "6.1.0"
 blake2s_simd = "0.5.6"
+pretty_env_logger = "0.3.1"
+log = "0.4.8"

fil-proofs-tooling/src/bin/benchy/main.rs

@@ -7,6 +7,8 @@ mod hash_fns;
 mod zigzag;
 
 fn main() {
+    pretty_env_logger::init_timed();
+
     let zigzag_cmd = SubCommand::with_name("zigzag")
                 .about("Run zigzag sealing")
                 .arg(
@@ -126,7 +128,6 @@ fn main() {
             Ok(())
                 .and_then(|_| {
                     let layers = value_t!(m, "layers", usize)?;
-
                     zigzag::run(zigzag::RunOpts {
                         bench: m.is_present("bench"),
                         bench_only: m.is_present("bench-only"),

fil-proofs-tooling/src/bin/benchy/zigzag.rs

@@ -1,12 +1,13 @@
-use cpu_time::ProcessTime;
 use std::fs::{File, OpenOptions};
 use std::time::{Duration, Instant};
 use std::{io, u32};
 
 use bellperson::Circuit;
 use chrono::Utc;
+use cpu_time::ProcessTime;
 use failure::bail;
 use fil_sapling_crypto::jubjub::JubjubBls12;
+use log::info;
 use memmap::MmapMut;
 use memmap::MmapOptions;
 use paired::bls12_381::Bls12;
@@ -542,6 +543,8 @@ pub fn run(opts: RunOpts) -> Result<(), failure::Error> {
         taper_layers: opts.taper_layers,
     };
 
+    info!("Benchy ZigZag: {:?}", &params);
+
     let report = match params.hasher.as_ref() {
         "pedersen" => generate_report::<PedersenHasher>(params)?,
         "sha256" => generate_report::<Sha256Hasher>(params)?,