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b25a8868 DG |
1 | /* |
2 | * Copyright (C) 2011 - David Goulet <david.goulet@polymtl.ca> | |
3 | * | |
4 | * This program is free software; you can redistribute it and/or | |
5 | * modify it under the terms of the GNU General Public License | |
6 | * as published by the Free Software Foundation; only version 2 | |
7 | * of the License. | |
8 | * | |
9 | * This program is distributed in the hope that it will be useful, | |
10 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
11 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
12 | * GNU General Public License for more details. | |
13 | * | |
14 | * You should have received a copy of the GNU General Public License | |
15 | * along with this program; if not, write to the Free Software | |
16 | * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. | |
17 | */ | |
18 | ||
19 | #include <stdio.h> | |
20 | #include <string.h> | |
21 | #include <sys/time.h> | |
22 | #include <unistd.h> | |
23 | ||
24 | #include "benchmark.h" | |
25 | ||
26 | static FILE *fp; | |
27 | ||
28 | void benchmark_print_boot_results(void) | |
29 | { | |
30 | uint64_t freq = 0; | |
31 | double res; | |
32 | int i, nb_calib = 10; | |
33 | double global_boot_time = 0.0; | |
34 | ||
35 | fp = fopen(RESULTS_FILE_NAME, "w"); | |
36 | if (fp == NULL) { | |
37 | perror("fopen benchmark"); | |
38 | return; | |
39 | } | |
40 | ||
41 | /* CPU Frequency calibration */ | |
42 | for (i = 0; i < nb_calib; i++) { | |
43 | freq += get_cpu_freq(); | |
44 | } | |
45 | freq = freq / nb_calib; | |
46 | ||
47 | fprintf(fp, "CPU frequency %lu Ghz\n\n", freq); | |
48 | ||
49 | fprintf(fp, "Results:\n----------\n"); | |
50 | ||
51 | res = (double) (((double)(time_sessiond_boot_end - time_sessiond_boot_start) | |
52 | / (((double)freq) / 1000)) / 1000000000); | |
53 | ||
54 | fprintf(fp, "Boot time inside main() from start to first pthread_join (blocking state)\n"); | |
55 | fprintf(fp, "Time: %.20f sec.\n", res); | |
56 | ||
57 | global_boot_time += res; | |
58 | ||
59 | res = (double) (((double)(time_sessiond_th_kern_poll - time_sessiond_th_kern_start) | |
60 | / (((double)freq) / 1000)) / 1000000000); | |
61 | ||
62 | fprintf(fp, "Boot time of the kernel thread from start to poll() (ready state)\n"); | |
63 | fprintf(fp, "Time: %.20f sec.\n", res); | |
64 | ||
65 | global_boot_time += res; | |
66 | ||
67 | res = (double) (((double)(time_sessiond_th_apps_poll - time_sessiond_th_apps_start) | |
68 | / (((double)freq) / 1000)) / 1000000000); | |
69 | ||
70 | fprintf(fp, "Boot time of the application thread from start to poll() (ready state)\n"); | |
71 | fprintf(fp, "Time: %.20f sec.\n", res); | |
72 | ||
73 | global_boot_time += res; | |
74 | ||
75 | res = (double) (((double)(time_sessiond_th_cli_poll - time_sessiond_th_cli_start) | |
76 | / (((double)freq) / 1000)) / 1000000000); | |
77 | ||
78 | fprintf(fp, "Boot time of the client thread from start to poll() (ready state)\n"); | |
79 | fprintf(fp, "Time: %.20f sec.\n", res); | |
80 | ||
81 | global_boot_time += res; | |
82 | ||
83 | fprintf(fp, "Global Boot Time of ltt-sessiond: %0.20f sec.\n", global_boot_time); | |
84 | ||
85 | fclose(fp); | |
86 | } |