From 3e6db174728d8b347134a567d3d264b069232f2a Mon Sep 17 00:00:00 2001
From: arnaucube <git@arnaucube.com>
Date: Mon, 25 Nov 2024 16:26:35 +0100
Subject: [PATCH] add profiler & flamegraph at benches

---
 benches/README.md |  9 +++++++--
 benches/nova.rs   | 10 +++++++++-
 2 files changed, 16 insertions(+), 3 deletions(-)

diff --git a/benches/README.md b/benches/README.md
index d479bb56..6f998097 100644
--- a/benches/README.md
+++ b/benches/README.md
@@ -1,5 +1,10 @@
 # benchmarks
+*Note: we're starting to benchmark & profile Sonobe, current results are pre-optimizations.*
+
+- Benchmark
+    - Run: `cargo bench`
+    - To run a specific benchmark, for example Nova's benchmark, run: `cargo bench --bench=nova`
+- Profiling
+    - eg. `cargo bench --bench=nova -- --profile-time 3`
 
-Run: `cargo bench`
 
-To run a specific benchmark, for example Nova benchmark, run: `cargo bench --bench=nova`
diff --git a/benches/nova.rs b/benches/nova.rs
index d34d2ad9..3706e192 100644
--- a/benches/nova.rs
+++ b/benches/nova.rs
@@ -1,4 +1,8 @@
 use criterion::*;
+use pprof::{
+    criterion::{Output, PProfProfiler},
+    flamegraph::Options,
+};
 
 use ark_bn254::{constraints::GVar as bn_GVar, Fr as bn_Fr, G1Projective as bn_G};
 use ark_grumpkin::{constraints::GVar as grumpkin_GVar, Projective as grumpkin_G};
@@ -70,5 +74,9 @@ fn bench_nova_ivc(c: &mut Criterion) {
     }
 }
 
-criterion_group!(benches, bench_nova_ivc);
+criterion_group! {
+    name = benches;
+    config = Criterion::default().with_profiler(PProfProfiler::new(100, Output::Flamegraph(None)));
+    targets = bench_nova_ivc
+}
 criterion_main!(benches);