29 static int do_count_loop(struct event *events, u64 instructions,  in do_count_loop()  argument
37 	/* Run for 1M instructions */  in do_count_loop()
38 	thirty_two_instruction_loop(instructions >> 5);  in do_count_loop()
45 	expected = instructions + overhead;  in do_count_loop()
53 		printf("Looped for %llu instructions, overhead %llu\n", instructions, overhead);  in do_count_loop()
73 /* Count how many instructions it takes to do a null loop */
99 	setup_event(&events[0], PERF_COUNT_HW_INSTRUCTIONS, "instructions");  in test_body()
113 	printf("Overhead of null loop: %llu instructions\n", overhead);  in test_body()
115 	/* Run for 1Mi instructions */  in test_body()
118 	/* Run for 10Mi instructions */  in test_body()
121 	/* Run for 100Mi instructions */  in test_body()
124 	/* Run for 1Bi instructions */  in test_body()
127 	/* Run for 16Bi instructions */  in test_body()
130 	/* Run for 64Bi instructions */  in test_body()