Commit | Line | Data |
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2e1df07d JA |
1 | /* |
2 | * fio - the flexible io tester | |
3 | * | |
4 | * Copyright (C) 2005 Jens Axboe <axboe@suse.de> | |
5 | * Copyright (C) 2006-2012 Jens Axboe <axboe@kernel.dk> | |
6 | * | |
7 | * The license below covers all files distributed with fio unless otherwise | |
8 | * noted in the file itself. | |
9 | * | |
10 | * This program is free software; you can redistribute it and/or modify | |
11 | * it under the terms of the GNU General Public License version 2 as | |
12 | * published by the Free Software Foundation. | |
13 | * | |
14 | * This program is distributed in the hope that it will be useful, | |
15 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
16 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
17 | * GNU General Public License for more details. | |
18 | * | |
19 | * You should have received a copy of the GNU General Public License | |
20 | * along with this program; if not, write to the Free Software | |
21 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | |
22 | * | |
23 | */ | |
24 | ||
25 | #include <string.h> | |
59dfce57 JA |
26 | #include <sys/types.h> |
27 | #include <signal.h> | |
a569b45f JA |
28 | #include <stdint.h> |
29 | #include <locale.h> | |
30 | ||
2e1df07d | 31 | #include "fio.h" |
a569b45f JA |
32 | #include "smalloc.h" |
33 | #include "os/os.h" | |
243bfe19 | 34 | #include "filelock.h" |
2e1df07d | 35 | |
a3efc919 JA |
36 | /* |
37 | * Just expose an empty list, if the OS does not support disk util stats | |
38 | */ | |
39 | #ifndef FIO_HAVE_DISK_UTIL | |
40 | FLIST_HEAD(disk_list); | |
41 | #endif | |
42 | ||
43 | unsigned long arch_flags = 0; | |
44 | ||
a569b45f JA |
45 | uintptr_t page_mask = 0; |
46 | uintptr_t page_size = 0; | |
47 | ||
2e1df07d JA |
48 | static const char *fio_os_strings[os_nr] = { |
49 | "Invalid", | |
50 | "Linux", | |
51 | "AIX", | |
52 | "FreeBSD", | |
53 | "HP-UX", | |
54 | "OSX", | |
55 | "NetBSD", | |
1c7eaa7b | 56 | "OpenBSD", |
2e1df07d | 57 | "Solaris", |
1c7eaa7b JA |
58 | "Windows", |
59 | "Android", | |
2e1df07d JA |
60 | }; |
61 | ||
62 | static const char *fio_arch_strings[arch_nr] = { | |
63 | "Invalid", | |
64 | "x86-64", | |
65 | "x86", | |
66 | "ppc", | |
67 | "ia64", | |
68 | "s390", | |
69 | "alpha", | |
70 | "sparc", | |
71 | "sparc64", | |
72 | "arm", | |
73 | "sh", | |
74 | "hppa", | |
75 | "generic" | |
76 | }; | |
77 | ||
78 | static void reset_io_counters(struct thread_data *td) | |
79 | { | |
6eaf09d6 | 80 | int ddir; |
bcd5abfa | 81 | |
6eaf09d6 SL |
82 | for (ddir = 0; ddir < DDIR_RWDIR_CNT; ddir++) { |
83 | td->stat_io_bytes[ddir] = 0; | |
84 | td->this_io_bytes[ddir] = 0; | |
85 | td->stat_io_blocks[ddir] = 0; | |
86 | td->this_io_blocks[ddir] = 0; | |
87 | td->rate_bytes[ddir] = 0; | |
88 | td->rate_blocks[ddir] = 0; | |
89 | } | |
2e1df07d | 90 | td->zone_bytes = 0; |
2e1df07d JA |
91 | |
92 | td->last_was_sync = 0; | |
bcd5abfa | 93 | td->rwmix_issues = 0; |
2e1df07d JA |
94 | |
95 | /* | |
96 | * reset file done count if we are to start over | |
97 | */ | |
44cbc6da | 98 | if (td->o.time_based || td->o.loops || td->o.do_verify) |
2e1df07d JA |
99 | td->nr_done_files = 0; |
100 | } | |
101 | ||
102 | void clear_io_state(struct thread_data *td) | |
103 | { | |
104 | struct fio_file *f; | |
105 | unsigned int i; | |
106 | ||
107 | reset_io_counters(td); | |
108 | ||
109 | close_files(td); | |
110 | for_each_file(td, f, i) | |
111 | fio_file_clear_done(f); | |
112 | ||
113 | /* | |
114 | * Set the same seed to get repeatable runs | |
115 | */ | |
116 | td_fill_rand_seeds(td); | |
117 | } | |
118 | ||
119 | void reset_all_stats(struct thread_data *td) | |
120 | { | |
121 | struct timeval tv; | |
122 | int i; | |
123 | ||
124 | reset_io_counters(td); | |
125 | ||
6eaf09d6 | 126 | for (i = 0; i < DDIR_RWDIR_CNT; i++) { |
2e1df07d JA |
127 | td->io_bytes[i] = 0; |
128 | td->io_blocks[i] = 0; | |
129 | td->io_issues[i] = 0; | |
130 | td->ts.total_io_u[i] = 0; | |
6eaf09d6 | 131 | td->ts.runtime[i] = 0; |
5b3faae6 | 132 | td->rwmix_issues = 0; |
2e1df07d JA |
133 | } |
134 | ||
135 | fio_gettime(&tv, NULL); | |
2e1df07d JA |
136 | memcpy(&td->epoch, &tv, sizeof(tv)); |
137 | memcpy(&td->start, &tv, sizeof(tv)); | |
3e260a46 | 138 | |
6bb58215 | 139 | lat_target_reset(td); |
2e1df07d JA |
140 | } |
141 | ||
142 | void reset_fio_state(void) | |
143 | { | |
144 | groupid = 0; | |
145 | thread_number = 0; | |
2caefeec | 146 | stat_number = 0; |
2e1df07d JA |
147 | done_secs = 0; |
148 | } | |
149 | ||
150 | const char *fio_get_os_string(int nr) | |
151 | { | |
152 | if (nr < os_nr) | |
153 | return fio_os_strings[nr]; | |
154 | ||
155 | return NULL; | |
156 | } | |
157 | ||
158 | const char *fio_get_arch_string(int nr) | |
159 | { | |
160 | if (nr < arch_nr) | |
161 | return fio_arch_strings[nr]; | |
162 | ||
163 | return NULL; | |
164 | } | |
165 | ||
166 | void td_set_runstate(struct thread_data *td, int runstate) | |
167 | { | |
168 | if (td->runstate == runstate) | |
169 | return; | |
170 | ||
171 | dprint(FD_PROCESS, "pid=%d: runstate %d -> %d\n", (int) td->pid, | |
172 | td->runstate, runstate); | |
173 | td->runstate = runstate; | |
174 | } | |
175 | ||
8edd973d JA |
176 | int td_bump_runstate(struct thread_data *td, int new_state) |
177 | { | |
178 | int old_state = td->runstate; | |
179 | ||
180 | td_set_runstate(td, new_state); | |
181 | return old_state; | |
182 | } | |
183 | ||
184 | void td_restore_runstate(struct thread_data *td, int old_state) | |
185 | { | |
186 | td_set_runstate(td, old_state); | |
187 | } | |
188 | ||
2e1df07d JA |
189 | void fio_terminate_threads(int group_id) |
190 | { | |
191 | struct thread_data *td; | |
41fa20ec | 192 | pid_t pid = getpid(); |
2e1df07d JA |
193 | int i; |
194 | ||
195 | dprint(FD_PROCESS, "terminate group_id=%d\n", group_id); | |
196 | ||
197 | for_each_td(td, i) { | |
198 | if (group_id == TERMINATE_ALL || groupid == td->groupid) { | |
199 | dprint(FD_PROCESS, "setting terminate on %s/%d\n", | |
200 | td->o.name, (int) td->pid); | |
201 | td->terminate = 1; | |
202 | td->o.start_delay = 0; | |
203 | ||
204 | /* | |
205 | * if the thread is running, just let it exit | |
206 | */ | |
36d80bc7 | 207 | if (!td->pid || pid == td->pid) |
2e1df07d JA |
208 | continue; |
209 | else if (td->runstate < TD_RAMP) | |
210 | kill(td->pid, SIGTERM); | |
36d80bc7 | 211 | else { |
2e1df07d JA |
212 | struct ioengine_ops *ops = td->io_ops; |
213 | ||
36d80bc7 JA |
214 | if (ops && ops->terminate) |
215 | ops->terminate(td); | |
2e1df07d JA |
216 | } |
217 | } | |
218 | } | |
219 | } | |
220 | ||
a569b45f JA |
221 | static int endian_check(void) |
222 | { | |
223 | union { | |
224 | uint8_t c[8]; | |
225 | uint64_t v; | |
226 | } u; | |
227 | int le = 0, be = 0; | |
228 | ||
229 | u.v = 0x12; | |
230 | if (u.c[7] == 0x12) | |
231 | be = 1; | |
232 | else if (u.c[0] == 0x12) | |
233 | le = 1; | |
234 | ||
235 | #if defined(CONFIG_LITTLE_ENDIAN) | |
236 | if (be) | |
237 | return 1; | |
238 | #elif defined(CONFIG_BIG_ENDIAN) | |
239 | if (le) | |
240 | return 1; | |
241 | #else | |
242 | return 1; | |
243 | #endif | |
244 | ||
245 | if (!le && !be) | |
246 | return 1; | |
247 | ||
248 | return 0; | |
249 | } | |
250 | ||
251 | int initialize_fio(char *envp[]) | |
252 | { | |
253 | long ps; | |
254 | ||
255 | if (endian_check()) { | |
256 | log_err("fio: endianness settings appear wrong.\n"); | |
257 | log_err("fio: please report this to fio@vger.kernel.org\n"); | |
258 | return 1; | |
259 | } | |
260 | ||
261 | #if !defined(CONFIG_GETTIMEOFDAY) && !defined(CONFIG_CLOCK_GETTIME) | |
262 | #error "No available clock source!" | |
263 | #endif | |
264 | ||
265 | arch_init(envp); | |
266 | ||
267 | sinit(); | |
268 | ||
243bfe19 JA |
269 | if (fio_filelock_init()) { |
270 | log_err("fio: failed initializing filelock subsys\n"); | |
271 | return 1; | |
272 | } | |
273 | ||
a569b45f JA |
274 | /* |
275 | * We need locale for number printing, if it isn't set then just | |
276 | * go with the US format. | |
277 | */ | |
278 | if (!getenv("LC_NUMERIC")) | |
279 | setlocale(LC_NUMERIC, "en_US"); | |
280 | ||
281 | ps = sysconf(_SC_PAGESIZE); | |
282 | if (ps < 0) { | |
283 | log_err("Failed to get page size\n"); | |
284 | return 1; | |
285 | } | |
286 | ||
287 | page_size = ps; | |
288 | page_mask = ps - 1; | |
2e1df07d | 289 | |
a569b45f JA |
290 | fio_keywords_init(); |
291 | return 0; | |
292 | } |