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 | 2e1df07 | 2012-02-09 11:15:02 +0100 | [diff] [blame] | 28 | #include "fio.h" |
| 29 | |
Jens Axboe | a3efc91 | 2012-02-09 11:25:24 +0100 | [diff] [blame] | 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 | |
Jens Axboe | 2e1df07 | 2012-02-09 11:15:02 +0100 | [diff] [blame] | 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 | { |
| 69 | td->stat_io_bytes[0] = td->stat_io_bytes[1] = 0; |
| 70 | td->this_io_bytes[0] = td->this_io_bytes[1] = 0; |
| 71 | td->stat_io_blocks[0] = td->stat_io_blocks[1] = 0; |
| 72 | td->this_io_blocks[0] = td->this_io_blocks[1] = 0; |
| 73 | td->zone_bytes = 0; |
| 74 | td->rate_bytes[0] = td->rate_bytes[1] = 0; |
| 75 | td->rate_blocks[0] = td->rate_blocks[1] = 0; |
| 76 | |
| 77 | td->last_was_sync = 0; |
| 78 | |
| 79 | /* |
| 80 | * reset file done count if we are to start over |
| 81 | */ |
| 82 | if (td->o.time_based || td->o.loops) |
| 83 | td->nr_done_files = 0; |
| 84 | } |
| 85 | |
| 86 | void clear_io_state(struct thread_data *td) |
| 87 | { |
| 88 | struct fio_file *f; |
| 89 | unsigned int i; |
| 90 | |
| 91 | reset_io_counters(td); |
| 92 | |
| 93 | close_files(td); |
| 94 | for_each_file(td, f, i) |
| 95 | fio_file_clear_done(f); |
| 96 | |
| 97 | /* |
| 98 | * Set the same seed to get repeatable runs |
| 99 | */ |
| 100 | td_fill_rand_seeds(td); |
| 101 | } |
| 102 | |
| 103 | void reset_all_stats(struct thread_data *td) |
| 104 | { |
| 105 | struct timeval tv; |
| 106 | int i; |
| 107 | |
| 108 | reset_io_counters(td); |
| 109 | |
| 110 | for (i = 0; i < 2; i++) { |
| 111 | td->io_bytes[i] = 0; |
| 112 | td->io_blocks[i] = 0; |
| 113 | td->io_issues[i] = 0; |
| 114 | td->ts.total_io_u[i] = 0; |
| 115 | } |
| 116 | |
| 117 | fio_gettime(&tv, NULL); |
| 118 | td->ts.runtime[0] = 0; |
| 119 | td->ts.runtime[1] = 0; |
| 120 | memcpy(&td->epoch, &tv, sizeof(tv)); |
| 121 | memcpy(&td->start, &tv, sizeof(tv)); |
| 122 | } |
| 123 | |
| 124 | void reset_fio_state(void) |
| 125 | { |
| 126 | groupid = 0; |
| 127 | thread_number = 0; |
| 128 | nr_process = 0; |
| 129 | nr_thread = 0; |
| 130 | done_secs = 0; |
| 131 | } |
| 132 | |
| 133 | const char *fio_get_os_string(int nr) |
| 134 | { |
| 135 | if (nr < os_nr) |
| 136 | return fio_os_strings[nr]; |
| 137 | |
| 138 | return NULL; |
| 139 | } |
| 140 | |
| 141 | const char *fio_get_arch_string(int nr) |
| 142 | { |
| 143 | if (nr < arch_nr) |
| 144 | return fio_arch_strings[nr]; |
| 145 | |
| 146 | return NULL; |
| 147 | } |
| 148 | |
| 149 | void td_set_runstate(struct thread_data *td, int runstate) |
| 150 | { |
| 151 | if (td->runstate == runstate) |
| 152 | return; |
| 153 | |
| 154 | dprint(FD_PROCESS, "pid=%d: runstate %d -> %d\n", (int) td->pid, |
| 155 | td->runstate, runstate); |
| 156 | td->runstate = runstate; |
| 157 | } |
| 158 | |
| 159 | void fio_terminate_threads(int group_id) |
| 160 | { |
| 161 | struct thread_data *td; |
| 162 | int i; |
| 163 | |
| 164 | dprint(FD_PROCESS, "terminate group_id=%d\n", group_id); |
| 165 | |
| 166 | for_each_td(td, i) { |
| 167 | if (group_id == TERMINATE_ALL || groupid == td->groupid) { |
| 168 | dprint(FD_PROCESS, "setting terminate on %s/%d\n", |
| 169 | td->o.name, (int) td->pid); |
| 170 | td->terminate = 1; |
| 171 | td->o.start_delay = 0; |
| 172 | |
| 173 | /* |
| 174 | * if the thread is running, just let it exit |
| 175 | */ |
| 176 | if (!td->pid) |
| 177 | continue; |
| 178 | else if (td->runstate < TD_RAMP) |
| 179 | kill(td->pid, SIGTERM); |
| 180 | else { |
| 181 | struct ioengine_ops *ops = td->io_ops; |
| 182 | |
| 183 | if (ops && (ops->flags & FIO_SIGTERM)) |
| 184 | kill(td->pid, SIGTERM); |
| 185 | } |
| 186 | } |
| 187 | } |
| 188 | } |
| 189 | |
| 190 | |