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> | |
26 | #include "fio.h" | |
27 | ||
a3efc919 JA |
28 | /* |
29 | * Just expose an empty list, if the OS does not support disk util stats | |
30 | */ | |
31 | #ifndef FIO_HAVE_DISK_UTIL | |
32 | FLIST_HEAD(disk_list); | |
33 | #endif | |
34 | ||
35 | unsigned long arch_flags = 0; | |
36 | ||
2e1df07d JA |
37 | static const char *fio_os_strings[os_nr] = { |
38 | "Invalid", | |
39 | "Linux", | |
40 | "AIX", | |
41 | "FreeBSD", | |
42 | "HP-UX", | |
43 | "OSX", | |
44 | "NetBSD", | |
45 | "Solaris", | |
46 | "Windows" | |
47 | }; | |
48 | ||
49 | static const char *fio_arch_strings[arch_nr] = { | |
50 | "Invalid", | |
51 | "x86-64", | |
52 | "x86", | |
53 | "ppc", | |
54 | "ia64", | |
55 | "s390", | |
56 | "alpha", | |
57 | "sparc", | |
58 | "sparc64", | |
59 | "arm", | |
60 | "sh", | |
61 | "hppa", | |
62 | "generic" | |
63 | }; | |
64 | ||
65 | static void reset_io_counters(struct thread_data *td) | |
66 | { | |
67 | td->stat_io_bytes[0] = td->stat_io_bytes[1] = 0; | |
68 | td->this_io_bytes[0] = td->this_io_bytes[1] = 0; | |
69 | td->stat_io_blocks[0] = td->stat_io_blocks[1] = 0; | |
70 | td->this_io_blocks[0] = td->this_io_blocks[1] = 0; | |
71 | td->zone_bytes = 0; | |
72 | td->rate_bytes[0] = td->rate_bytes[1] = 0; | |
73 | td->rate_blocks[0] = td->rate_blocks[1] = 0; | |
74 | ||
75 | td->last_was_sync = 0; | |
76 | ||
77 | /* | |
78 | * reset file done count if we are to start over | |
79 | */ | |
80 | if (td->o.time_based || td->o.loops) | |
81 | td->nr_done_files = 0; | |
82 | } | |
83 | ||
84 | void clear_io_state(struct thread_data *td) | |
85 | { | |
86 | struct fio_file *f; | |
87 | unsigned int i; | |
88 | ||
89 | reset_io_counters(td); | |
90 | ||
91 | close_files(td); | |
92 | for_each_file(td, f, i) | |
93 | fio_file_clear_done(f); | |
94 | ||
95 | /* | |
96 | * Set the same seed to get repeatable runs | |
97 | */ | |
98 | td_fill_rand_seeds(td); | |
99 | } | |
100 | ||
101 | void reset_all_stats(struct thread_data *td) | |
102 | { | |
103 | struct timeval tv; | |
104 | int i; | |
105 | ||
106 | reset_io_counters(td); | |
107 | ||
108 | for (i = 0; i < 2; i++) { | |
109 | td->io_bytes[i] = 0; | |
110 | td->io_blocks[i] = 0; | |
111 | td->io_issues[i] = 0; | |
112 | td->ts.total_io_u[i] = 0; | |
113 | } | |
114 | ||
115 | fio_gettime(&tv, NULL); | |
116 | td->ts.runtime[0] = 0; | |
117 | td->ts.runtime[1] = 0; | |
118 | memcpy(&td->epoch, &tv, sizeof(tv)); | |
119 | memcpy(&td->start, &tv, sizeof(tv)); | |
120 | } | |
121 | ||
122 | void reset_fio_state(void) | |
123 | { | |
124 | groupid = 0; | |
125 | thread_number = 0; | |
126 | nr_process = 0; | |
127 | nr_thread = 0; | |
128 | done_secs = 0; | |
129 | } | |
130 | ||
131 | const char *fio_get_os_string(int nr) | |
132 | { | |
133 | if (nr < os_nr) | |
134 | return fio_os_strings[nr]; | |
135 | ||
136 | return NULL; | |
137 | } | |
138 | ||
139 | const char *fio_get_arch_string(int nr) | |
140 | { | |
141 | if (nr < arch_nr) | |
142 | return fio_arch_strings[nr]; | |
143 | ||
144 | return NULL; | |
145 | } | |
146 | ||
147 | void td_set_runstate(struct thread_data *td, int runstate) | |
148 | { | |
149 | if (td->runstate == runstate) | |
150 | return; | |
151 | ||
152 | dprint(FD_PROCESS, "pid=%d: runstate %d -> %d\n", (int) td->pid, | |
153 | td->runstate, runstate); | |
154 | td->runstate = runstate; | |
155 | } | |
156 | ||
157 | void fio_terminate_threads(int group_id) | |
158 | { | |
159 | struct thread_data *td; | |
160 | int i; | |
161 | ||
162 | dprint(FD_PROCESS, "terminate group_id=%d\n", group_id); | |
163 | ||
164 | for_each_td(td, i) { | |
165 | if (group_id == TERMINATE_ALL || groupid == td->groupid) { | |
166 | dprint(FD_PROCESS, "setting terminate on %s/%d\n", | |
167 | td->o.name, (int) td->pid); | |
168 | td->terminate = 1; | |
169 | td->o.start_delay = 0; | |
170 | ||
171 | /* | |
172 | * if the thread is running, just let it exit | |
173 | */ | |
174 | if (!td->pid) | |
175 | continue; | |
176 | else if (td->runstate < TD_RAMP) | |
177 | kill(td->pid, SIGTERM); | |
178 | else { | |
179 | struct ioengine_ops *ops = td->io_ops; | |
180 | ||
181 | if (ops && (ops->flags & FIO_SIGTERM)) | |
182 | kill(td->pid, SIGTERM); | |
183 | } | |
184 | } | |
185 | } | |
186 | } | |
187 | ||
188 |