45 …fprintf(stderr, "Usage: rand_emmc_perf [ -r | -w ] [-o] [-s count] [-f full_stats_filename] <size_…  in usage()
67             fprintf(stderr, "Cannot open full stats output file %s, ignoring\n",  in print_stats()
78             fprintf(full_stats, "%lld\n", (t.tv_sec * 1000000LL) + t.tv_usec);  in print_stats()
119         fprintf(stderr, "Cannot allocate stats_buf\n");  in stats_test()
127             fprintf(stderr, "lseek64 failed\n");  in stats_test()
132                 fprintf(stderr, "Short write\n");  in stats_test()
136                 fprintf(stderr, "Short read\n");  in stats_test()
157             fprintf(stderr, "lseek64 failed\n");  in perf_test()
161                 fprintf(stderr, "Short write\n");  in perf_test()
165                 fprintf(stderr, "Short read\n");  in perf_test()
223                 fprintf(stderr, "Cannot get full stats filename\n");  in main()
243         fprintf(stderr, "Cannot open block device %s\n", argv[optind + 1]);  in main()
249         fprintf(stderr, "Cannot open /dev/urandom\n");  in main()
252         fprintf(stderr, "Cannot read /dev/urandom\n");  in main()