Commit | Line | Data |
---|---|---|
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> | |
e61ca217 JA |
28 | #include <stdint.h> |
29 | #include <locale.h> | |
30 | ||
2e1df07d | 31 | #include "fio.h" |
e61ca217 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 | ||
61b29c20 JA |
44 | uintptr_t page_mask; |
45 | uintptr_t page_size; | |
e61ca217 | 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; |
2e1df07d JA |
130 | } |
131 | ||
132 | fio_gettime(&tv, NULL); | |
2e1df07d JA |
133 | memcpy(&td->epoch, &tv, sizeof(tv)); |
134 | memcpy(&td->start, &tv, sizeof(tv)); | |
135 | } | |
136 | ||
137 | void reset_fio_state(void) | |
138 | { | |
139 | groupid = 0; | |
140 | thread_number = 0; | |
559cf11a | 141 | stat_number = 0; |
2e1df07d JA |
142 | done_secs = 0; |
143 | } | |
144 | ||
145 | const char *fio_get_os_string(int nr) | |
146 | { | |
147 | if (nr < os_nr) | |
148 | return fio_os_strings[nr]; | |
149 | ||
150 | return NULL; | |
151 | } | |
152 | ||
153 | const char *fio_get_arch_string(int nr) | |
154 | { | |
155 | if (nr < arch_nr) | |
156 | return fio_arch_strings[nr]; | |
157 | ||
158 | return NULL; | |
159 | } | |
160 | ||
161 | void td_set_runstate(struct thread_data *td, int runstate) | |
162 | { | |
163 | if (td->runstate == runstate) | |
164 | return; | |
165 | ||
166 | dprint(FD_PROCESS, "pid=%d: runstate %d -> %d\n", (int) td->pid, | |
167 | td->runstate, runstate); | |
168 | td->runstate = runstate; | |
169 | } | |
170 | ||
171 | void fio_terminate_threads(int group_id) | |
172 | { | |
173 | struct thread_data *td; | |
41fa20ec | 174 | pid_t pid = getpid(); |
2e1df07d JA |
175 | int i; |
176 | ||
177 | dprint(FD_PROCESS, "terminate group_id=%d\n", group_id); | |
178 | ||
179 | for_each_td(td, i) { | |
180 | if (group_id == TERMINATE_ALL || groupid == td->groupid) { | |
181 | dprint(FD_PROCESS, "setting terminate on %s/%d\n", | |
182 | td->o.name, (int) td->pid); | |
183 | td->terminate = 1; | |
184 | td->o.start_delay = 0; | |
185 | ||
186 | /* | |
187 | * if the thread is running, just let it exit | |
188 | */ | |
36d80bc7 | 189 | if (!td->pid || pid == td->pid) |
2e1df07d JA |
190 | continue; |
191 | else if (td->runstate < TD_RAMP) | |
192 | kill(td->pid, SIGTERM); | |
193 | else { | |
194 | struct ioengine_ops *ops = td->io_ops; | |
195 | ||
36d80bc7 JA |
196 | if (ops && ops->terminate) |
197 | ops->terminate(td); | |
2e1df07d JA |
198 | } |
199 | } | |
200 | } | |
201 | } | |
202 | ||
e61ca217 JA |
203 | static int endian_check(void) |
204 | { | |
205 | union { | |
206 | uint8_t c[8]; | |
207 | uint64_t v; | |
208 | } u; | |
209 | int le = 0, be = 0; | |
210 | ||
211 | u.v = 0x12; | |
212 | if (u.c[7] == 0x12) | |
213 | be = 1; | |
214 | else if (u.c[0] == 0x12) | |
215 | le = 1; | |
216 | ||
836fcc0f | 217 | #if defined(CONFIG_LITTLE_ENDIAN) |
e61ca217 JA |
218 | if (be) |
219 | return 1; | |
836fcc0f | 220 | #elif defined(CONFIG_BIG_ENDIAN) |
e61ca217 JA |
221 | if (le) |
222 | return 1; | |
223 | #else | |
224 | return 1; | |
225 | #endif | |
226 | ||
227 | if (!le && !be) | |
228 | return 1; | |
229 | ||
230 | return 0; | |
231 | } | |
232 | ||
233 | int initialize_fio(char *envp[]) | |
234 | { | |
235 | long ps; | |
236 | ||
237 | if (endian_check()) { | |
238 | log_err("fio: endianness settings appear wrong.\n"); | |
239 | log_err("fio: please report this to fio@vger.kernel.org\n"); | |
240 | return 1; | |
241 | } | |
242 | ||
243 | arch_init(envp); | |
2e1df07d | 244 | |
e61ca217 JA |
245 | sinit(); |
246 | ||
247 | /* | |
248 | * We need locale for number printing, if it isn't set then just | |
249 | * go with the US format. | |
250 | */ | |
251 | if (!getenv("LC_NUMERIC")) | |
252 | setlocale(LC_NUMERIC, "en_US"); | |
253 | ||
254 | ps = sysconf(_SC_PAGESIZE); | |
255 | if (ps < 0) { | |
256 | log_err("Failed to get page size\n"); | |
257 | return 1; | |
258 | } | |
259 | ||
260 | page_size = ps; | |
261 | page_mask = ps - 1; | |
262 | ||
263 | fio_keywords_init(); | |
264 | return 0; | |
265 | } |