diff --git a/C/makefile b/C/makefile
index 72c2b325..149b8827 100644
--- a/C/makefile
+++ b/C/makefile
@@ -96,7 +96,7 @@ profile-linux:
 	# rm analysis.txt
 	# perf: 
 	OMP_NUM_THREADS=16 sudo perf record $(OUTPUT)
-	perf report
+	sudo perf report
 	rm perf.data
 	
 
diff --git a/C/out/samples b/C/out/samples
index 2542aa2f..ade23da3 100755
Binary files a/C/out/samples and b/C/out/samples differ