diff --git a/halo2_proofs/src/arithmetic.rs b/halo2_proofs/src/arithmetic.rs
index 99d2ebb893..5cd83de66d 100644
--- a/halo2_proofs/src/arithmetic.rs
+++ b/halo2_proofs/src/arithmetic.rs
@@ -137,7 +137,7 @@ pub fn best_multiexp<C: CurveAffine>(coeffs: &[C::Scalar], bases: &[C]) -> C::Cu
 
     //println!("msm: {}", coeffs.len());
 
-    let start = get_time();
+    // let start = get_time();
     let num_threads = multicore::current_num_threads();
     let res = if coeffs.len() > num_threads {
         let chunk = coeffs.len() / num_threads;
@@ -163,11 +163,11 @@ pub fn best_multiexp<C: CurveAffine>(coeffs: &[C::Scalar], bases: &[C]) -> C::Cu
         acc
     };
 
-    let duration = get_duration(start);
+    // let duration = get_duration(start);
     #[allow(unsafe_code)]
-    unsafe {
-        MULTIEXP_TOTAL_TIME += duration;
-    }
+    // unsafe {
+    //     MULTIEXP_TOTAL_TIME += duration;
+    // }
 
     res
 }
@@ -525,7 +525,7 @@ use rand_core::OsRng;
 
 #[cfg(test)]
 use crate::halo2curves::pasta::Fp;
-use crate::plonk::{get_duration, get_time, start_measure, stop_measure};
+// use crate::plonk::{get_duration, get_time, start_measure, stop_measure};
 
 #[test]
 fn test_lagrange_interpolate() {
diff --git a/halo2_proofs/src/dev.rs b/halo2_proofs/src/dev.rs
index f9eb16af17..ec2e27ae2e 100644
--- a/halo2_proofs/src/dev.rs
+++ b/halo2_proofs/src/dev.rs
@@ -6,7 +6,7 @@ use std::fmt;
 use std::iter;
 use std::ops::{Add, Mul, Neg, Range};
 use std::sync::Arc;
-use std::time::{Duration, Instant};
+// use std::time::{Duration, Instant};
 
 use blake2b_simd::blake2b;
 use ff::Field;
diff --git a/halo2_proofs/src/plonk.rs b/halo2_proofs/src/plonk.rs
index e3bffc000e..9097b7ef78 100644
--- a/halo2_proofs/src/plonk.rs
+++ b/halo2_proofs/src/plonk.rs
@@ -45,38 +45,38 @@ pub use verifier::*;
 use evaluation::Evaluator;
 use std::env::var;
 use std::io;
-use std::time::Instant;
-
-/// Temp
-#[allow(missing_debug_implementations)]
-pub struct MeasurementInfo {
-    /// Temp
-    pub measure: bool,
-    /// Temp
-    pub time: Instant,
-    /// Message
-    pub message: String,
-    /// Indent
-    pub indent: usize,
-}
-
-/// TEMP
-#[cfg(feature = "profile")]
-pub static NUM_INDENT: AtomicUsize = AtomicUsize::new(0);
-
-/// Temp
-pub fn get_time() -> Instant {
-    Instant::now()
-}
-
-/// Temp
-pub fn get_duration(start: Instant) -> usize {
-    let final_time = Instant::now() - start;
-    let secs = final_time.as_secs() as usize;
-    let millis = final_time.subsec_millis() as usize;
-    let micros = (final_time.subsec_micros() % 1000) as usize;
-    secs * 1000000 + millis * 1000 + micros
-}
+// use std::time::Instant;
+
+// /// Temp
+// #[allow(missing_debug_implementations)]
+// pub struct MeasurementInfo {
+//     /// Temp
+//     pub measure: bool,
+//     /// Temp
+//     pub time: Instant,
+//     /// Message
+//     pub message: String,
+//     /// Indent
+//     pub indent: usize,
+// }
+
+// /// TEMP
+// #[cfg(feature = "profile")]
+// pub static NUM_INDENT: AtomicUsize = AtomicUsize::new(0);
+
+// /// Temp
+// pub fn get_time() -> Instant {
+//     Instant::now()
+// }
+
+// /// Temp
+// pub fn get_duration(start: Instant) -> usize {
+//     let final_time = Instant::now() - start;
+//     let secs = final_time.as_secs() as usize;
+//     let millis = final_time.subsec_millis() as usize;
+//     let micros = (final_time.subsec_micros() % 1000) as usize;
+//     secs * 1000000 + millis * 1000 + micros
+// }
 
 /// Temp
 pub fn log_measurement(indent: Option<usize>, msg: String, duration: usize) {
diff --git a/halo2_proofs/src/poly/domain.rs b/halo2_proofs/src/poly/domain.rs
index 0db3f459e1..9fba645791 100644
--- a/halo2_proofs/src/poly/domain.rs
+++ b/halo2_proofs/src/poly/domain.rs
@@ -4,7 +4,7 @@
 use crate::{
     arithmetic::{best_fft, parallelize, parallelize_count, FieldExt, Group},
     multicore,
-    plonk::{get_duration, get_time, start_measure, stop_measure, Assigned},
+    plonk::{Assigned},
 };
 
 use super::{Coeff, ExtendedLagrangeCoeff, LagrangeCoeff, Polynomial, Rotation};
@@ -787,7 +787,7 @@ impl<G: Group> EvaluationDomain<G> {
     }
 
     fn fft_inner(&self, a: &mut Vec<G::Scalar>, omega: G::Scalar, log_n: u32, inverse: bool) {
-        let start = get_time();
+        // let start = get_time();
         if get_fft_mode() == 1 {
             let fft_data = if a.len() == self.fft_data.n {
                 &self.fft_data
@@ -798,12 +798,12 @@ impl<G: Group> EvaluationDomain<G> {
         } else {
             best_fft(a, omega, log_n);
         }
-        let duration = get_duration(start);
+        // let duration = get_duration(start);
 
-        #[allow(unsafe_code)]
-        unsafe {
-            FFT_TOTAL_TIME += duration;
-        }
+        // #[allow(unsafe_code)]
+        // unsafe {
+        //     FFT_TOTAL_TIME += duration;
+        // }
     }
 
     /// Get the size of the domain
@@ -1029,21 +1029,17 @@ fn test_fft() {
     let num_threads = multicore::current_num_threads();
 
     let mut a = input.clone();
-    #[cfg(feature = "profile")]
-    let start = start_measure(format!("best fft {} ({})", a.len(), num_threads), false);
+    // let start = start_measure(format!("best fft {} ({})", a.len(), num_threads), false);
     best_fft(&mut a, domain.omega, k);
-    #[cfg(feature = "profile")]
-    stop_measure(start);
+    // stop_measure(start);
 
-    let mut b = input;
-    #[cfg(feature = "profile")]
-    let start = start_measure(
-        format!("recursive fft {} ({})", a.len(), num_threads),
-        false,
-    );
+    let mut b = input.clone();
+    // let start = start_measure(
+    //     format!("recursive fft {} ({})", a.len(), num_threads),
+    //     false,
+    // );
     recursive_fft(&domain.fft_data, &mut b, false);
-    #[cfg(feature = "profile")]
-    stop_measure(start);
+    // stop_measure(start);
 
     for i in 0..n {
         //println!("{}: {} {}", i, a[i], b[i]);