diff --git a/ocaml/makefile b/ocaml/makefile
index 78edcbc1..3f4b626d 100644
--- a/ocaml/makefile
+++ b/ocaml/makefile
@@ -3,6 +3,7 @@ OC=ocamlopt
 # ocamlopt: platform-specific, faster
 # ocamlc: platform-independent intermediate representation, run with ocamlrun
 FAST=-O3 -unsafe # install flambda with opam
+PROF=-g
 
 SRC=samples.ml
 OUT=./out/samples
@@ -21,6 +22,13 @@ fast:
 time:
 	bash -c "time $(OUT)"
 
+profile:
+	$(OC) $(PERF) $(SRC) -o $(OUT)
+	mv samples.cmi samples.cmx samples.o ./out/
+	sudo perf record -g $(OUT)
+	sudo perf report
+	rm perf.data
+
 switch-opam-fast:
 	opam switch create 4.11.2+flambda 
 	eval $(opam env)
diff --git a/ocaml/out/samples b/ocaml/out/samples
index 4fb0eb86..bc115c24 100755
Binary files a/ocaml/out/samples and b/ocaml/out/samples differ
diff --git a/ocaml/out/samples.cmx b/ocaml/out/samples.cmx
index e29f47fa..8e87f46b 100644
Binary files a/ocaml/out/samples.cmx and b/ocaml/out/samples.cmx differ
diff --git a/ocaml/out/samples.o b/ocaml/out/samples.o
index 008d7df5..34e7ee5c 100644
Binary files a/ocaml/out/samples.o and b/ocaml/out/samples.o differ