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" | |
2e1df07d | 34 | |
a3efc919 JA |
35 | /* |
36 | * Just expose an empty list, if the OS does not support disk util stats | |
37 | */ | |
38 | #ifndef FIO_HAVE_DISK_UTIL | |
39 | FLIST_HEAD(disk_list); | |
40 | #endif | |
41 | ||
42 | unsigned long arch_flags = 0; | |
43 | ||
a569b45f JA |
44 | uintptr_t page_mask = 0; |
45 | uintptr_t page_size = 0; | |
46 | ||
2e1df07d JA |
47 | static const char *fio_os_strings[os_nr] = { |
48 | "Invalid", | |
49 | "Linux", | |
50 | "AIX", | |
51 | "FreeBSD", | |
52 | "HP-UX", | |
53 | "OSX", | |
54 | "NetBSD", | |
55 | "Solaris", | |
56 | "Windows" | |
57 | }; | |
58 | ||
59 | static const char *fio_arch_strings[arch_nr] = { | |
60 | "Invalid", | |
61 | "x86-64", | |
62 | "x86", | |
63 | "ppc", | |
64 | "ia64", | |
65 | "s390", | |
66 | "alpha", | |
67 | "sparc", | |
68 | "sparc64", | |
69 | "arm", | |
70 | "sh", | |
71 | "hppa", | |
72 | "generic" | |
73 | }; | |
74 | ||
75 | static void reset_io_counters(struct thread_data *td) | |
76 | { | |
6eaf09d6 | 77 | int ddir; |
bcd5abfa | 78 | |
6eaf09d6 SL |
79 | for (ddir = 0; ddir < DDIR_RWDIR_CNT; ddir++) { |
80 | td->stat_io_bytes[ddir] = 0; | |
81 | td->this_io_bytes[ddir] = 0; | |
82 | td->stat_io_blocks[ddir] = 0; | |
83 | td->this_io_blocks[ddir] = 0; | |
84 | td->rate_bytes[ddir] = 0; | |
85 | td->rate_blocks[ddir] = 0; | |
bcd5abfa | 86 | td->io_issues[ddir] = 0; |
6eaf09d6 | 87 | } |
2e1df07d | 88 | td->zone_bytes = 0; |
2e1df07d JA |
89 | |
90 | td->last_was_sync = 0; | |
bcd5abfa | 91 | td->rwmix_issues = 0; |
2e1df07d JA |
92 | |
93 | /* | |
94 | * reset file done count if we are to start over | |
95 | */ | |
44cbc6da | 96 | if (td->o.time_based || td->o.loops || td->o.do_verify) |
2e1df07d JA |
97 | td->nr_done_files = 0; |
98 | } | |
99 | ||
100 | void clear_io_state(struct thread_data *td) | |
101 | { | |
102 | struct fio_file *f; | |
103 | unsigned int i; | |
104 | ||
105 | reset_io_counters(td); | |
106 | ||
107 | close_files(td); | |
108 | for_each_file(td, f, i) | |
109 | fio_file_clear_done(f); | |
110 | ||
111 | /* | |
112 | * Set the same seed to get repeatable runs | |
113 | */ | |
114 | td_fill_rand_seeds(td); | |
115 | } | |
116 | ||
117 | void reset_all_stats(struct thread_data *td) | |
118 | { | |
119 | struct timeval tv; | |
120 | int i; | |
121 | ||
122 | reset_io_counters(td); | |
123 | ||
6eaf09d6 | 124 | for (i = 0; i < DDIR_RWDIR_CNT; i++) { |
2e1df07d JA |
125 | td->io_bytes[i] = 0; |
126 | td->io_blocks[i] = 0; | |
127 | td->io_issues[i] = 0; | |
128 | td->ts.total_io_u[i] = 0; | |
6eaf09d6 | 129 | td->ts.runtime[i] = 0; |
5b3faae6 | 130 | td->rwmix_issues = 0; |
2e1df07d JA |
131 | } |
132 | ||
133 | fio_gettime(&tv, NULL); | |
2e1df07d JA |
134 | memcpy(&td->epoch, &tv, sizeof(tv)); |
135 | memcpy(&td->start, &tv, sizeof(tv)); | |
136 | } | |
137 | ||
138 | void reset_fio_state(void) | |
139 | { | |
140 | groupid = 0; | |
141 | thread_number = 0; | |
2caefeec | 142 | stat_number = 0; |
2e1df07d JA |
143 | done_secs = 0; |
144 | } | |
145 | ||
146 | const char *fio_get_os_string(int nr) | |
147 | { | |
148 | if (nr < os_nr) | |
149 | return fio_os_strings[nr]; | |
150 | ||
151 | return NULL; | |
152 | } | |
153 | ||
154 | const char *fio_get_arch_string(int nr) | |
155 | { | |
156 | if (nr < arch_nr) | |
157 | return fio_arch_strings[nr]; | |
158 | ||
159 | return NULL; | |
160 | } | |
161 | ||
162 | void td_set_runstate(struct thread_data *td, int runstate) | |
163 | { | |
164 | if (td->runstate == runstate) | |
165 | return; | |
166 | ||
167 | dprint(FD_PROCESS, "pid=%d: runstate %d -> %d\n", (int) td->pid, | |
168 | td->runstate, runstate); | |
169 | td->runstate = runstate; | |
170 | } | |
171 | ||
172 | void fio_terminate_threads(int group_id) | |
173 | { | |
174 | struct thread_data *td; | |
41fa20ec | 175 | pid_t pid = getpid(); |
2e1df07d JA |
176 | int i; |
177 | ||
178 | dprint(FD_PROCESS, "terminate group_id=%d\n", group_id); | |
179 | ||
180 | for_each_td(td, i) { | |
181 | if (group_id == TERMINATE_ALL || groupid == td->groupid) { | |
182 | dprint(FD_PROCESS, "setting terminate on %s/%d\n", | |
183 | td->o.name, (int) td->pid); | |
184 | td->terminate = 1; | |
185 | td->o.start_delay = 0; | |
186 | ||
187 | /* | |
188 | * if the thread is running, just let it exit | |
189 | */ | |
36d80bc7 | 190 | if (!td->pid || pid == td->pid) |
2e1df07d JA |
191 | continue; |
192 | else if (td->runstate < TD_RAMP) | |
193 | kill(td->pid, SIGTERM); | |
36d80bc7 | 194 | else { |
2e1df07d JA |
195 | struct ioengine_ops *ops = td->io_ops; |
196 | ||
36d80bc7 JA |
197 | if (ops && ops->terminate) |
198 | ops->terminate(td); | |
2e1df07d JA |
199 | } |
200 | } | |
201 | } | |
202 | } | |
203 | ||
a569b45f JA |
204 | static int endian_check(void) |
205 | { | |
206 | union { | |
207 | uint8_t c[8]; | |
208 | uint64_t v; | |
209 | } u; | |
210 | int le = 0, be = 0; | |
211 | ||
212 | u.v = 0x12; | |
213 | if (u.c[7] == 0x12) | |
214 | be = 1; | |
215 | else if (u.c[0] == 0x12) | |
216 | le = 1; | |
217 | ||
218 | #if defined(CONFIG_LITTLE_ENDIAN) | |
219 | if (be) | |
220 | return 1; | |
221 | #elif defined(CONFIG_BIG_ENDIAN) | |
222 | if (le) | |
223 | return 1; | |
224 | #else | |
225 | return 1; | |
226 | #endif | |
227 | ||
228 | if (!le && !be) | |
229 | return 1; | |
230 | ||
231 | return 0; | |
232 | } | |
233 | ||
234 | int initialize_fio(char *envp[]) | |
235 | { | |
236 | long ps; | |
237 | ||
238 | if (endian_check()) { | |
239 | log_err("fio: endianness settings appear wrong.\n"); | |
240 | log_err("fio: please report this to fio@vger.kernel.org\n"); | |
241 | return 1; | |
242 | } | |
243 | ||
244 | #if !defined(CONFIG_GETTIMEOFDAY) && !defined(CONFIG_CLOCK_GETTIME) | |
245 | #error "No available clock source!" | |
246 | #endif | |
247 | ||
248 | arch_init(envp); | |
249 | ||
250 | sinit(); | |
251 | ||
252 | /* | |
253 | * We need locale for number printing, if it isn't set then just | |
254 | * go with the US format. | |
255 | */ | |
256 | if (!getenv("LC_NUMERIC")) | |
257 | setlocale(LC_NUMERIC, "en_US"); | |
258 | ||
259 | ps = sysconf(_SC_PAGESIZE); | |
260 | if (ps < 0) { | |
261 | log_err("Failed to get page size\n"); | |
262 | return 1; | |
263 | } | |
264 | ||
265 | page_size = ps; | |
266 | page_mask = ps - 1; | |
2e1df07d | 267 | |
a569b45f JA |
268 | fio_keywords_init(); |
269 | return 0; | |
270 | } |