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> | |
2e1df07d JA |
28 | #include "fio.h" |
29 | ||
a3efc919 JA |
30 | /* |
31 | * Just expose an empty list, if the OS does not support disk util stats | |
32 | */ | |
33 | #ifndef FIO_HAVE_DISK_UTIL | |
34 | FLIST_HEAD(disk_list); | |
35 | #endif | |
36 | ||
37 | unsigned long arch_flags = 0; | |
38 | ||
2e1df07d JA |
39 | static const char *fio_os_strings[os_nr] = { |
40 | "Invalid", | |
41 | "Linux", | |
42 | "AIX", | |
43 | "FreeBSD", | |
44 | "HP-UX", | |
45 | "OSX", | |
46 | "NetBSD", | |
47 | "Solaris", | |
48 | "Windows" | |
49 | }; | |
50 | ||
51 | static const char *fio_arch_strings[arch_nr] = { | |
52 | "Invalid", | |
53 | "x86-64", | |
54 | "x86", | |
55 | "ppc", | |
56 | "ia64", | |
57 | "s390", | |
58 | "alpha", | |
59 | "sparc", | |
60 | "sparc64", | |
61 | "arm", | |
62 | "sh", | |
63 | "hppa", | |
64 | "generic" | |
65 | }; | |
66 | ||
67 | static void reset_io_counters(struct thread_data *td) | |
68 | { | |
6eaf09d6 | 69 | int ddir; |
bcd5abfa | 70 | |
6eaf09d6 SL |
71 | for (ddir = 0; ddir < DDIR_RWDIR_CNT; ddir++) { |
72 | td->stat_io_bytes[ddir] = 0; | |
73 | td->this_io_bytes[ddir] = 0; | |
74 | td->stat_io_blocks[ddir] = 0; | |
75 | td->this_io_blocks[ddir] = 0; | |
76 | td->rate_bytes[ddir] = 0; | |
77 | td->rate_blocks[ddir] = 0; | |
bcd5abfa | 78 | td->io_issues[ddir] = 0; |
6eaf09d6 | 79 | } |
2e1df07d | 80 | td->zone_bytes = 0; |
2e1df07d JA |
81 | |
82 | td->last_was_sync = 0; | |
bcd5abfa | 83 | td->rwmix_issues = 0; |
2e1df07d JA |
84 | |
85 | /* | |
86 | * reset file done count if we are to start over | |
87 | */ | |
44cbc6da | 88 | if (td->o.time_based || td->o.loops || td->o.do_verify) |
2e1df07d JA |
89 | td->nr_done_files = 0; |
90 | } | |
91 | ||
92 | void clear_io_state(struct thread_data *td) | |
93 | { | |
94 | struct fio_file *f; | |
95 | unsigned int i; | |
96 | ||
97 | reset_io_counters(td); | |
98 | ||
99 | close_files(td); | |
100 | for_each_file(td, f, i) | |
101 | fio_file_clear_done(f); | |
102 | ||
103 | /* | |
104 | * Set the same seed to get repeatable runs | |
105 | */ | |
106 | td_fill_rand_seeds(td); | |
107 | } | |
108 | ||
109 | void reset_all_stats(struct thread_data *td) | |
110 | { | |
111 | struct timeval tv; | |
112 | int i; | |
113 | ||
114 | reset_io_counters(td); | |
115 | ||
6eaf09d6 | 116 | for (i = 0; i < DDIR_RWDIR_CNT; i++) { |
2e1df07d JA |
117 | td->io_bytes[i] = 0; |
118 | td->io_blocks[i] = 0; | |
119 | td->io_issues[i] = 0; | |
120 | td->ts.total_io_u[i] = 0; | |
6eaf09d6 | 121 | td->ts.runtime[i] = 0; |
2e1df07d JA |
122 | } |
123 | ||
124 | fio_gettime(&tv, NULL); | |
2e1df07d JA |
125 | memcpy(&td->epoch, &tv, sizeof(tv)); |
126 | memcpy(&td->start, &tv, sizeof(tv)); | |
127 | } | |
128 | ||
129 | void reset_fio_state(void) | |
130 | { | |
131 | groupid = 0; | |
132 | thread_number = 0; | |
2caefeec | 133 | stat_number = 0; |
2e1df07d JA |
134 | nr_process = 0; |
135 | nr_thread = 0; | |
136 | done_secs = 0; | |
137 | } | |
138 | ||
139 | const char *fio_get_os_string(int nr) | |
140 | { | |
141 | if (nr < os_nr) | |
142 | return fio_os_strings[nr]; | |
143 | ||
144 | return NULL; | |
145 | } | |
146 | ||
147 | const char *fio_get_arch_string(int nr) | |
148 | { | |
149 | if (nr < arch_nr) | |
150 | return fio_arch_strings[nr]; | |
151 | ||
152 | return NULL; | |
153 | } | |
154 | ||
155 | void td_set_runstate(struct thread_data *td, int runstate) | |
156 | { | |
157 | if (td->runstate == runstate) | |
158 | return; | |
159 | ||
160 | dprint(FD_PROCESS, "pid=%d: runstate %d -> %d\n", (int) td->pid, | |
161 | td->runstate, runstate); | |
162 | td->runstate = runstate; | |
163 | } | |
164 | ||
165 | void fio_terminate_threads(int group_id) | |
166 | { | |
167 | struct thread_data *td; | |
41fa20ec | 168 | pid_t pid = getpid(); |
2e1df07d JA |
169 | int i; |
170 | ||
171 | dprint(FD_PROCESS, "terminate group_id=%d\n", group_id); | |
172 | ||
173 | for_each_td(td, i) { | |
174 | if (group_id == TERMINATE_ALL || groupid == td->groupid) { | |
175 | dprint(FD_PROCESS, "setting terminate on %s/%d\n", | |
176 | td->o.name, (int) td->pid); | |
177 | td->terminate = 1; | |
178 | td->o.start_delay = 0; | |
179 | ||
180 | /* | |
181 | * if the thread is running, just let it exit | |
182 | */ | |
36d80bc7 | 183 | if (!td->pid || pid == td->pid) |
2e1df07d JA |
184 | continue; |
185 | else if (td->runstate < TD_RAMP) | |
186 | kill(td->pid, SIGTERM); | |
36d80bc7 | 187 | else { |
2e1df07d JA |
188 | struct ioengine_ops *ops = td->io_ops; |
189 | ||
36d80bc7 JA |
190 | if (ops && ops->terminate) |
191 | ops->terminate(td); | |
2e1df07d JA |
192 | } |
193 | } | |
194 | } | |
195 | } | |
196 | ||
197 |