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 | e61ca21 | 2012-02-24 12:51:31 +0100 | [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 | e61ca21 | 2012-02-24 12:51:31 +0100 | [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 | 61b29c2 | 2012-04-05 08:58:31 -0600 | [diff] [blame^] | 44 | uintptr_t page_mask; |
| 45 | uintptr_t page_size; |
Jens Axboe | e61ca21 | 2012-02-24 12:51:31 +0100 | [diff] [blame] | 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", |
| 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 | { |
| 77 | td->stat_io_bytes[0] = td->stat_io_bytes[1] = 0; |
| 78 | td->this_io_bytes[0] = td->this_io_bytes[1] = 0; |
| 79 | td->stat_io_blocks[0] = td->stat_io_blocks[1] = 0; |
| 80 | td->this_io_blocks[0] = td->this_io_blocks[1] = 0; |
| 81 | td->zone_bytes = 0; |
| 82 | td->rate_bytes[0] = td->rate_bytes[1] = 0; |
| 83 | td->rate_blocks[0] = td->rate_blocks[1] = 0; |
| 84 | |
| 85 | td->last_was_sync = 0; |
| 86 | |
| 87 | /* |
| 88 | * reset file done count if we are to start over |
| 89 | */ |
| 90 | if (td->o.time_based || td->o.loops) |
| 91 | td->nr_done_files = 0; |
| 92 | } |
| 93 | |
| 94 | void clear_io_state(struct thread_data *td) |
| 95 | { |
| 96 | struct fio_file *f; |
| 97 | unsigned int i; |
| 98 | |
| 99 | reset_io_counters(td); |
| 100 | |
| 101 | close_files(td); |
| 102 | for_each_file(td, f, i) |
| 103 | fio_file_clear_done(f); |
| 104 | |
| 105 | /* |
| 106 | * Set the same seed to get repeatable runs |
| 107 | */ |
| 108 | td_fill_rand_seeds(td); |
| 109 | } |
| 110 | |
| 111 | void reset_all_stats(struct thread_data *td) |
| 112 | { |
| 113 | struct timeval tv; |
| 114 | int i; |
| 115 | |
| 116 | reset_io_counters(td); |
| 117 | |
| 118 | for (i = 0; i < 2; i++) { |
| 119 | td->io_bytes[i] = 0; |
| 120 | td->io_blocks[i] = 0; |
| 121 | td->io_issues[i] = 0; |
| 122 | td->ts.total_io_u[i] = 0; |
| 123 | } |
| 124 | |
| 125 | fio_gettime(&tv, NULL); |
| 126 | td->ts.runtime[0] = 0; |
| 127 | td->ts.runtime[1] = 0; |
| 128 | memcpy(&td->epoch, &tv, sizeof(tv)); |
| 129 | memcpy(&td->start, &tv, sizeof(tv)); |
| 130 | } |
| 131 | |
| 132 | void reset_fio_state(void) |
| 133 | { |
| 134 | groupid = 0; |
| 135 | thread_number = 0; |
Jens Axboe | 2e1df07 | 2012-02-09 11:15:02 +0100 | [diff] [blame] | 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; |
| 168 | int i; |
| 169 | |
| 170 | dprint(FD_PROCESS, "terminate group_id=%d\n", group_id); |
| 171 | |
| 172 | for_each_td(td, i) { |
| 173 | if (group_id == TERMINATE_ALL || groupid == td->groupid) { |
| 174 | dprint(FD_PROCESS, "setting terminate on %s/%d\n", |
| 175 | td->o.name, (int) td->pid); |
| 176 | td->terminate = 1; |
| 177 | td->o.start_delay = 0; |
| 178 | |
| 179 | /* |
| 180 | * if the thread is running, just let it exit |
| 181 | */ |
| 182 | if (!td->pid) |
| 183 | continue; |
| 184 | else if (td->runstate < TD_RAMP) |
| 185 | kill(td->pid, SIGTERM); |
| 186 | else { |
| 187 | struct ioengine_ops *ops = td->io_ops; |
| 188 | |
| 189 | if (ops && (ops->flags & FIO_SIGTERM)) |
| 190 | kill(td->pid, SIGTERM); |
| 191 | } |
| 192 | } |
| 193 | } |
| 194 | } |
| 195 | |
Jens Axboe | e61ca21 | 2012-02-24 12:51:31 +0100 | [diff] [blame] | 196 | static int endian_check(void) |
| 197 | { |
| 198 | union { |
| 199 | uint8_t c[8]; |
| 200 | uint64_t v; |
| 201 | } u; |
| 202 | int le = 0, be = 0; |
Jens Axboe | 2e1df07 | 2012-02-09 11:15:02 +0100 | [diff] [blame] | 203 | |
Jens Axboe | e61ca21 | 2012-02-24 12:51:31 +0100 | [diff] [blame] | 204 | u.v = 0x12; |
| 205 | if (u.c[7] == 0x12) |
| 206 | be = 1; |
| 207 | else if (u.c[0] == 0x12) |
| 208 | le = 1; |
| 209 | |
| 210 | #if defined(FIO_LITTLE_ENDIAN) |
| 211 | if (be) |
| 212 | return 1; |
| 213 | #elif defined(FIO_BIG_ENDIAN) |
| 214 | if (le) |
| 215 | return 1; |
| 216 | #else |
| 217 | return 1; |
| 218 | #endif |
| 219 | |
| 220 | if (!le && !be) |
| 221 | return 1; |
| 222 | |
| 223 | return 0; |
| 224 | } |
| 225 | |
| 226 | int initialize_fio(char *envp[]) |
| 227 | { |
| 228 | long ps; |
| 229 | |
| 230 | if (endian_check()) { |
| 231 | log_err("fio: endianness settings appear wrong.\n"); |
| 232 | log_err("fio: please report this to fio@vger.kernel.org\n"); |
| 233 | return 1; |
| 234 | } |
| 235 | |
| 236 | arch_init(envp); |
| 237 | |
| 238 | sinit(); |
| 239 | |
| 240 | /* |
| 241 | * We need locale for number printing, if it isn't set then just |
| 242 | * go with the US format. |
| 243 | */ |
| 244 | if (!getenv("LC_NUMERIC")) |
| 245 | setlocale(LC_NUMERIC, "en_US"); |
| 246 | |
| 247 | ps = sysconf(_SC_PAGESIZE); |
| 248 | if (ps < 0) { |
| 249 | log_err("Failed to get page size\n"); |
| 250 | return 1; |
| 251 | } |
| 252 | |
| 253 | page_size = ps; |
| 254 | page_mask = ps - 1; |
| 255 | |
| 256 | fio_keywords_init(); |
| 257 | return 0; |
| 258 | } |