few fixes

circuits/src/poseidon2/generation.rs

@@ -154,7 +154,8 @@ pub fn generate_poseidon2_trace<F: RichField>(step_rows: &[Row<F>]) -> Vec<Posei
             .collect::<Vec<Poseidon2State<F>>>(),
         generate_poseidon2_state(&[F::ZERO; STATE_SIZE], false),
     );
-    log::trace!("Poseison2 trace {:?}", trace);
+    log::trace!("Poseidon2 trace {:?}", trace);
+    log::info!("Poseidon2 trace length {:?}", trace.len());
     trace
 }
 

examples/mozak-poseidon2/main.rs

@@ -25,7 +25,7 @@ fn main() {
     // using rng to generate random bytes interferes
     // with benching poseidon2 ecall, which is the primary
     // focus here.
-    let v: Vec<u8> = black_box((0..n).map(|i| 0x12).collect());
+    let v: Vec<u8> = black_box((0..n).map(|_i| 0x12).collect());
     let mut hash = [0u8; 32];
 
     // flat hash

perftool/config.json

@@ -64,14 +64,15 @@
             }
         }
     },
-    "poseidon2": {
-        "description": "Benching Poseidon2 ECALL",
+    "poseidon2-elf": {
+        "description": "Benching Poseidon2 ecall inside ELF.",
         "parameter": "input_len",
         "output": "time taken (in s)",
         "benches": {
-            "poseidon2": {
+            "poseidon2-elf": {
                 "commit": "latest",
-                "bench_function": "poseidon2-bench"
+                "bench_function": "poseidon2-elf-bench",
+                "elf": "examples/mozak-poseidon2"
             }
         }
     }