Jens Axboe | 2e1df07 | 2012-02-09 11:15:02 +0100 | [diff] [blame] | 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> |
Jens Axboe | 59dfce5 | 2012-02-15 21:52:39 +0100 | [diff] [blame] | 26 | #include <sys/types.h> |
| 27 | #include <signal.h> |
Jens Axboe | a569b45 | 2013-04-11 11:51:35 +0200 | [diff] [blame] | 28 | #include <stdint.h> |
| 29 | #include <locale.h> |
| 30 | |
Jens Axboe | 2e1df07 | 2012-02-09 11:15:02 +0100 | [diff] [blame] | 31 | #include "fio.h" |
Jens Axboe | a569b45 | 2013-04-11 11:51:35 +0200 | [diff] [blame] | 32 | #include "smalloc.h" |
| 33 | #include "os/os.h" |
Jens Axboe | 2e1df07 | 2012-02-09 11:15:02 +0100 | [diff] [blame] | 34 | |
Jens Axboe | a3efc91 | 2012-02-09 11:25:24 +0100 | [diff] [blame] | 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 | |
Jens Axboe | a569b45 | 2013-04-11 11:51:35 +0200 | [diff] [blame] | 44 | uintptr_t page_mask = 0; |
| 45 | uintptr_t page_size = 0; |
| 46 | |
Jens Axboe | 2e1df07 | 2012-02-09 11:15:02 +0100 | [diff] [blame] | 47 | static const char *fio_os_strings[os_nr] = { |
| 48 | "Invalid", |
| 49 | "Linux", |
| 50 | "AIX", |
| 51 | "FreeBSD", |
| 52 | "HP-UX", |
| 53 | "OSX", |
| 54 | "NetBSD", |
Jens Axboe | 1c7eaa7 | 2013-12-29 19:22:46 -0700 | [diff] [blame] | 55 | "OpenBSD", |
Jens Axboe | 2e1df07 | 2012-02-09 11:15:02 +0100 | [diff] [blame] | 56 | "Solaris", |
Jens Axboe | 1c7eaa7 | 2013-12-29 19:22:46 -0700 | [diff] [blame] | 57 | "Windows", |
| 58 | "Android", |
Jens Axboe | 2e1df07 | 2012-02-09 11:15:02 +0100 | [diff] [blame] | 59 | }; |
| 60 | |
| 61 | static const char *fio_arch_strings[arch_nr] = { |
| 62 | "Invalid", |
| 63 | "x86-64", |
| 64 | "x86", |
| 65 | "ppc", |
| 66 | "ia64", |
| 67 | "s390", |
| 68 | "alpha", |
| 69 | "sparc", |
| 70 | "sparc64", |
| 71 | "arm", |
| 72 | "sh", |
| 73 | "hppa", |
| 74 | "generic" |
| 75 | }; |
| 76 | |
| 77 | static void reset_io_counters(struct thread_data *td) |
| 78 | { |
Shaohua Li | 6eaf09d | 2012-09-14 08:49:43 +0200 | [diff] [blame] | 79 | int ddir; |
Jens Axboe | bcd5abf | 2013-01-23 09:27:25 -0700 | [diff] [blame] | 80 | |
Shaohua Li | 6eaf09d | 2012-09-14 08:49:43 +0200 | [diff] [blame] | 81 | for (ddir = 0; ddir < DDIR_RWDIR_CNT; ddir++) { |
| 82 | td->stat_io_bytes[ddir] = 0; |
| 83 | td->this_io_bytes[ddir] = 0; |
| 84 | td->stat_io_blocks[ddir] = 0; |
| 85 | td->this_io_blocks[ddir] = 0; |
| 86 | td->rate_bytes[ddir] = 0; |
| 87 | td->rate_blocks[ddir] = 0; |
| 88 | } |
Jens Axboe | 2e1df07 | 2012-02-09 11:15:02 +0100 | [diff] [blame] | 89 | td->zone_bytes = 0; |
Jens Axboe | 2e1df07 | 2012-02-09 11:15:02 +0100 | [diff] [blame] | 90 | |
| 91 | td->last_was_sync = 0; |
Jens Axboe | bcd5abf | 2013-01-23 09:27:25 -0700 | [diff] [blame] | 92 | td->rwmix_issues = 0; |
Jens Axboe | 2e1df07 | 2012-02-09 11:15:02 +0100 | [diff] [blame] | 93 | |
| 94 | /* |
| 95 | * reset file done count if we are to start over |
| 96 | */ |
Jens Axboe | 44cbc6d | 2013-01-21 09:47:03 -0700 | [diff] [blame] | 97 | if (td->o.time_based || td->o.loops || td->o.do_verify) |
Jens Axboe | 2e1df07 | 2012-02-09 11:15:02 +0100 | [diff] [blame] | 98 | td->nr_done_files = 0; |
| 99 | } |
| 100 | |
| 101 | void clear_io_state(struct thread_data *td) |
| 102 | { |
| 103 | struct fio_file *f; |
| 104 | unsigned int i; |
| 105 | |
| 106 | reset_io_counters(td); |
| 107 | |
| 108 | close_files(td); |
| 109 | for_each_file(td, f, i) |
| 110 | fio_file_clear_done(f); |
| 111 | |
| 112 | /* |
| 113 | * Set the same seed to get repeatable runs |
| 114 | */ |
| 115 | td_fill_rand_seeds(td); |
| 116 | } |
| 117 | |
| 118 | void reset_all_stats(struct thread_data *td) |
| 119 | { |
| 120 | struct timeval tv; |
| 121 | int i; |
| 122 | |
| 123 | reset_io_counters(td); |
| 124 | |
Shaohua Li | 6eaf09d | 2012-09-14 08:49:43 +0200 | [diff] [blame] | 125 | for (i = 0; i < DDIR_RWDIR_CNT; i++) { |
Jens Axboe | 2e1df07 | 2012-02-09 11:15:02 +0100 | [diff] [blame] | 126 | td->io_bytes[i] = 0; |
| 127 | td->io_blocks[i] = 0; |
| 128 | td->io_issues[i] = 0; |
| 129 | td->ts.total_io_u[i] = 0; |
Shaohua Li | 6eaf09d | 2012-09-14 08:49:43 +0200 | [diff] [blame] | 130 | td->ts.runtime[i] = 0; |
SEOKYOUNG KO | 5b3faae | 2013-03-07 12:31:04 +0100 | [diff] [blame] | 131 | td->rwmix_issues = 0; |
Jens Axboe | 2e1df07 | 2012-02-09 11:15:02 +0100 | [diff] [blame] | 132 | } |
| 133 | |
| 134 | fio_gettime(&tv, NULL); |
Jens Axboe | 2e1df07 | 2012-02-09 11:15:02 +0100 | [diff] [blame] | 135 | memcpy(&td->epoch, &tv, sizeof(tv)); |
| 136 | memcpy(&td->start, &tv, sizeof(tv)); |
Jens Axboe | 3e260a4 | 2013-12-09 12:38:53 -0700 | [diff] [blame] | 137 | |
| 138 | lat_target_init(td); |
Jens Axboe | 2e1df07 | 2012-02-09 11:15:02 +0100 | [diff] [blame] | 139 | } |
| 140 | |
| 141 | void reset_fio_state(void) |
| 142 | { |
| 143 | groupid = 0; |
| 144 | thread_number = 0; |
Jens Axboe | 2caefee | 2012-11-15 07:51:28 -0700 | [diff] [blame] | 145 | stat_number = 0; |
Jens Axboe | 2e1df07 | 2012-02-09 11:15:02 +0100 | [diff] [blame] | 146 | done_secs = 0; |
| 147 | } |
| 148 | |
| 149 | const char *fio_get_os_string(int nr) |
| 150 | { |
| 151 | if (nr < os_nr) |
| 152 | return fio_os_strings[nr]; |
| 153 | |
| 154 | return NULL; |
| 155 | } |
| 156 | |
| 157 | const char *fio_get_arch_string(int nr) |
| 158 | { |
| 159 | if (nr < arch_nr) |
| 160 | return fio_arch_strings[nr]; |
| 161 | |
| 162 | return NULL; |
| 163 | } |
| 164 | |
| 165 | void td_set_runstate(struct thread_data *td, int runstate) |
| 166 | { |
| 167 | if (td->runstate == runstate) |
| 168 | return; |
| 169 | |
| 170 | dprint(FD_PROCESS, "pid=%d: runstate %d -> %d\n", (int) td->pid, |
| 171 | td->runstate, runstate); |
| 172 | td->runstate = runstate; |
| 173 | } |
| 174 | |
| 175 | void fio_terminate_threads(int group_id) |
| 176 | { |
| 177 | struct thread_data *td; |
Jens Axboe | 41fa20e | 2012-11-29 14:24:34 +0100 | [diff] [blame] | 178 | pid_t pid = getpid(); |
Jens Axboe | 2e1df07 | 2012-02-09 11:15:02 +0100 | [diff] [blame] | 179 | int i; |
| 180 | |
| 181 | dprint(FD_PROCESS, "terminate group_id=%d\n", group_id); |
| 182 | |
| 183 | for_each_td(td, i) { |
| 184 | if (group_id == TERMINATE_ALL || groupid == td->groupid) { |
| 185 | dprint(FD_PROCESS, "setting terminate on %s/%d\n", |
| 186 | td->o.name, (int) td->pid); |
| 187 | td->terminate = 1; |
| 188 | td->o.start_delay = 0; |
| 189 | |
| 190 | /* |
| 191 | * if the thread is running, just let it exit |
| 192 | */ |
Jens Axboe | 36d80bc | 2012-11-30 21:46:06 +0100 | [diff] [blame] | 193 | if (!td->pid || pid == td->pid) |
Jens Axboe | 2e1df07 | 2012-02-09 11:15:02 +0100 | [diff] [blame] | 194 | continue; |
| 195 | else if (td->runstate < TD_RAMP) |
| 196 | kill(td->pid, SIGTERM); |
Jens Axboe | 36d80bc | 2012-11-30 21:46:06 +0100 | [diff] [blame] | 197 | else { |
Jens Axboe | 2e1df07 | 2012-02-09 11:15:02 +0100 | [diff] [blame] | 198 | struct ioengine_ops *ops = td->io_ops; |
| 199 | |
Jens Axboe | 36d80bc | 2012-11-30 21:46:06 +0100 | [diff] [blame] | 200 | if (ops && ops->terminate) |
| 201 | ops->terminate(td); |
Jens Axboe | 2e1df07 | 2012-02-09 11:15:02 +0100 | [diff] [blame] | 202 | } |
| 203 | } |
| 204 | } |
| 205 | } |
| 206 | |
Jens Axboe | a569b45 | 2013-04-11 11:51:35 +0200 | [diff] [blame] | 207 | static int endian_check(void) |
| 208 | { |
| 209 | union { |
| 210 | uint8_t c[8]; |
| 211 | uint64_t v; |
| 212 | } u; |
| 213 | int le = 0, be = 0; |
Jens Axboe | 2e1df07 | 2012-02-09 11:15:02 +0100 | [diff] [blame] | 214 | |
Jens Axboe | a569b45 | 2013-04-11 11:51:35 +0200 | [diff] [blame] | 215 | u.v = 0x12; |
| 216 | if (u.c[7] == 0x12) |
| 217 | be = 1; |
| 218 | else if (u.c[0] == 0x12) |
| 219 | le = 1; |
| 220 | |
| 221 | #if defined(CONFIG_LITTLE_ENDIAN) |
| 222 | if (be) |
| 223 | return 1; |
| 224 | #elif defined(CONFIG_BIG_ENDIAN) |
| 225 | if (le) |
| 226 | return 1; |
| 227 | #else |
| 228 | return 1; |
| 229 | #endif |
| 230 | |
| 231 | if (!le && !be) |
| 232 | return 1; |
| 233 | |
| 234 | return 0; |
| 235 | } |
| 236 | |
| 237 | int initialize_fio(char *envp[]) |
| 238 | { |
| 239 | long ps; |
| 240 | |
| 241 | if (endian_check()) { |
| 242 | log_err("fio: endianness settings appear wrong.\n"); |
| 243 | log_err("fio: please report this to fio@vger.kernel.org\n"); |
| 244 | return 1; |
| 245 | } |
| 246 | |
| 247 | #if !defined(CONFIG_GETTIMEOFDAY) && !defined(CONFIG_CLOCK_GETTIME) |
| 248 | #error "No available clock source!" |
| 249 | #endif |
| 250 | |
| 251 | arch_init(envp); |
| 252 | |
| 253 | sinit(); |
| 254 | |
| 255 | /* |
| 256 | * We need locale for number printing, if it isn't set then just |
| 257 | * go with the US format. |
| 258 | */ |
| 259 | if (!getenv("LC_NUMERIC")) |
| 260 | setlocale(LC_NUMERIC, "en_US"); |
| 261 | |
| 262 | ps = sysconf(_SC_PAGESIZE); |
| 263 | if (ps < 0) { |
| 264 | log_err("Failed to get page size\n"); |
| 265 | return 1; |
| 266 | } |
| 267 | |
| 268 | page_size = ps; |
| 269 | page_mask = ps - 1; |
| 270 | |
| 271 | fio_keywords_init(); |
| 272 | return 0; |
| 273 | } |