729 static void make_histogram(int buckets[], char *buf, size_t len, char *linebuf,  in make_histogram()  argument
786 		buckets[i]++;  in make_histogram()
797 static void display_histogram(int buckets[], bool use_nsec)  in display_histogram()  argument
806 		total += buckets[i];  in display_histogram()
816 	bar_len = buckets[0] * bar_total / total;  in display_histogram()
818 	       0, 1, "us", buckets[0], bar_len, bar, bar_total - bar_len, "");  in display_histogram()
830 		bar_len = buckets[i] * bar_total / total;  in display_histogram()
832 		       start, stop, unit, buckets[i], bar_len, bar,  in display_histogram()
836 	bar_len = buckets[NUM_BUCKET - 1] * bar_total / total;  in display_histogram()
838 	       1, "...", use_nsec ? "ms" : " s", buckets[NUM_BUCKET - 1],  in display_histogram()
905 static int read_func_latency(struct perf_ftrace *ftrace, int buckets[])  in read_func_latency()  argument
908 		return perf_ftrace__latency_read_bpf(ftrace, buckets);  in read_func_latency()
930 	int buckets[NUM_BUCKET] = { };  in __cmd_latency()  local
954 			make_histogram(buckets, buf, n, line, ftrace->use_nsec);  in __cmd_latency()
971 		make_histogram(buckets, buf, n, line, ftrace->use_nsec);  in __cmd_latency()
974 	read_func_latency(ftrace, buckets);  in __cmd_latency()
976 	display_histogram(buckets, ftrace->use_nsec);  in __cmd_latency()