81                 fprintf(stderr, "Option -d expects an argument.\n");  in main()
89                 fprintf(stderr, "Option -n expects an argument.\n");  in main()
101                 fprintf(stderr, "Option -p expects an argument.\n");  in main()
109                 fprintf(stderr, "Option -t expects an argument.\n");  in main()
115         fprintf(stderr, "Invalid argument \"%s\".\n", argv[i]);  in main()
121 …   fprintf(stderr, "If you provide a thread ID with -t, you must provide a process ID with -p.\n");  in main()
180             fprintf(stderr, "Could not open global latency stats file: %s\n", strerror(errno));  in read_global_stats()
183         fprintf(f, "erase\n");  in read_global_stats()
189         fprintf(stderr, "Could not open global latency stats file: %s\n", strerror(errno));  in read_global_stats()
210         fprintf(stderr, "Could not open task dir for process %d.\n", pid);  in read_process_stats()
211         fprintf(stderr, "Perhaps the process has terminated?\n");  in read_process_stats()
241                 fprintf(stderr, "Could not open %s: %s\n", filename, strerror(errno));  in read_thread_stats()
242                 fprintf(stderr, "Perhaps the process or thread has terminated?\n");  in read_thread_stats()
248         fprintf(f, "erase\n");  in read_thread_stats()
255             fprintf(stderr, "Could not open %s: %s\n", filename, strerror(errno));  in read_thread_stats()
256             fprintf(stderr, "Perhaps the process or thread has terminated?\n");  in read_thread_stats()
279             fprintf(stderr, "Could not allocate latency entry: %s\n", strerror(errno));  in alloc_latency_entry()
306         fprintf(stderr, "Could not open %s: %s\n", SYSCTL_FILE, strerror(errno));  in set_latencytop()
310     fprintf(f, "%d\n", on);  in set_latencytop()
324         fprintf(stderr, "Could not read latency file version: %s\n", strerror(errno));  in read_latency_file()
329         fprintf(stderr, "Expected version: %s\n", EXPECTED_VERSION);  in read_latency_file()
330         fprintf(stderr, "But got version: %s", line);  in read_latency_file()
373         fprintf(stderr, "Error allocating array: %s\n", strerror(errno));  in print_latency_entries()
410     fprintf(stderr, "Usage: %s [ -d delay ] [ -n iterations ] [ -p pid [ -t tid ] ] [ -h ]\n"  in usage()