Jens Axboe | 9f8f206 | 2007-04-02 15:08:01 +0200 | [diff] [blame] | 1 | #include <stdio.h> |
| 2 | #include <string.h> |
| 3 | #include <sys/time.h> |
| 4 | #include <sys/types.h> |
| 5 | #include <sys/stat.h> |
| 6 | #include <dirent.h> |
| 7 | #include <libgen.h> |
| 8 | #include <math.h> |
Jens Axboe | 9edf7b3 | 2014-04-14 13:19:13 -0600 | [diff] [blame] | 9 | #include <assert.h> |
Jens Axboe | 9f8f206 | 2007-04-02 15:08:01 +0200 | [diff] [blame] | 10 | |
| 11 | #include "fio.h" |
Jens Axboe | c97bd0f | 2009-05-27 13:11:20 +0200 | [diff] [blame] | 12 | #include "smalloc.h" |
Jens Axboe | 7c9b1bc | 2009-06-03 09:25:57 +0200 | [diff] [blame] | 13 | #include "diskutil.h" |
Jens Axboe | 9f8f206 | 2007-04-02 15:08:01 +0200 | [diff] [blame] | 14 | |
| 15 | static int last_majdev, last_mindev; |
Jens Axboe | c97bd0f | 2009-05-27 13:11:20 +0200 | [diff] [blame] | 16 | static struct disk_util *last_du; |
Jens Axboe | 9f8f206 | 2007-04-02 15:08:01 +0200 | [diff] [blame] | 17 | |
Jens Axboe | 9ec7779 | 2012-08-02 08:27:41 +0200 | [diff] [blame] | 18 | static struct fio_mutex *disk_util_mutex; |
Jens Axboe | 9ec7779 | 2012-08-02 08:27:41 +0200 | [diff] [blame] | 19 | |
Jens Axboe | d09a64a | 2011-10-13 11:38:56 +0200 | [diff] [blame] | 20 | FLIST_HEAD(disk_list); |
Jens Axboe | 9f8f206 | 2007-04-02 15:08:01 +0200 | [diff] [blame] | 21 | |
Jens Axboe | 2db4ecc | 2009-09-11 22:22:41 +0200 | [diff] [blame] | 22 | static struct disk_util *__init_per_file_disk_util(struct thread_data *td, |
| 23 | int majdev, int mindev, char *path); |
| 24 | |
Jens Axboe | c97bd0f | 2009-05-27 13:11:20 +0200 | [diff] [blame] | 25 | static void disk_util_free(struct disk_util *du) |
| 26 | { |
| 27 | if (du == last_du) |
| 28 | last_du = NULL; |
| 29 | |
Jens Axboe | b8d541d | 2010-06-21 12:40:53 +0200 | [diff] [blame] | 30 | while (!flist_empty(&du->slaves)) { |
| 31 | struct disk_util *slave; |
| 32 | |
| 33 | slave = flist_entry(du->slaves.next, struct disk_util, slavelist); |
| 34 | flist_del(&slave->slavelist); |
| 35 | slave->users--; |
| 36 | } |
Bruce Cran | 93bcfd2 | 2012-02-20 20:18:19 +0100 | [diff] [blame] | 37 | |
Jens Axboe | c97bd0f | 2009-05-27 13:11:20 +0200 | [diff] [blame] | 38 | fio_mutex_remove(du->lock); |
Jens Axboe | c97bd0f | 2009-05-27 13:11:20 +0200 | [diff] [blame] | 39 | sfree(du); |
| 40 | } |
| 41 | |
Jens Axboe | 9f8f206 | 2007-04-02 15:08:01 +0200 | [diff] [blame] | 42 | static int get_io_ticks(struct disk_util *du, struct disk_util_stat *dus) |
| 43 | { |
| 44 | unsigned in_flight; |
Jens Axboe | d09a64a | 2011-10-13 11:38:56 +0200 | [diff] [blame] | 45 | unsigned long long sectors[2]; |
Jens Axboe | 9f8f206 | 2007-04-02 15:08:01 +0200 | [diff] [blame] | 46 | char line[256]; |
| 47 | FILE *f; |
| 48 | char *p; |
Jens Axboe | 5ec10ea | 2008-03-06 15:42:00 +0100 | [diff] [blame] | 49 | int ret; |
Jens Axboe | 9f8f206 | 2007-04-02 15:08:01 +0200 | [diff] [blame] | 50 | |
Jens Axboe | cd991b9 | 2008-03-07 13:19:35 +0100 | [diff] [blame] | 51 | dprint(FD_DISKUTIL, "open stat file: %s\n", du->path); |
| 52 | |
Jens Axboe | 9f8f206 | 2007-04-02 15:08:01 +0200 | [diff] [blame] | 53 | f = fopen(du->path, "r"); |
| 54 | if (!f) |
| 55 | return 1; |
| 56 | |
| 57 | p = fgets(line, sizeof(line), f); |
| 58 | if (!p) { |
| 59 | fclose(f); |
| 60 | return 1; |
| 61 | } |
| 62 | |
Jens Axboe | cd991b9 | 2008-03-07 13:19:35 +0100 | [diff] [blame] | 63 | dprint(FD_DISKUTIL, "%s: %s", du->path, p); |
| 64 | |
Jens Axboe | a3b4cf7 | 2014-04-11 12:17:53 -0600 | [diff] [blame] | 65 | ret = sscanf(p, "%u %u %llu %u %u %u %llu %u %u %u %u\n", |
| 66 | &dus->s.ios[0], |
| 67 | &dus->s.merges[0], §ors[0], |
| 68 | &dus->s.ticks[0], &dus->s.ios[1], |
| 69 | &dus->s.merges[1], §ors[1], |
| 70 | &dus->s.ticks[1], &in_flight, |
| 71 | &dus->s.io_ticks, |
| 72 | &dus->s.time_in_queue); |
Jens Axboe | 9f8f206 | 2007-04-02 15:08:01 +0200 | [diff] [blame] | 73 | fclose(f); |
Jens Axboe | cd991b9 | 2008-03-07 13:19:35 +0100 | [diff] [blame] | 74 | dprint(FD_DISKUTIL, "%s: stat read ok? %d\n", du->path, ret == 1); |
Jens Axboe | a3b4cf7 | 2014-04-11 12:17:53 -0600 | [diff] [blame] | 75 | dus->s.sectors[0] = sectors[0]; |
| 76 | dus->s.sectors[1] = sectors[1]; |
Jens Axboe | cd991b9 | 2008-03-07 13:19:35 +0100 | [diff] [blame] | 77 | return ret != 11; |
Jens Axboe | 9f8f206 | 2007-04-02 15:08:01 +0200 | [diff] [blame] | 78 | } |
| 79 | |
| 80 | static void update_io_tick_disk(struct disk_util *du) |
| 81 | { |
| 82 | struct disk_util_stat __dus, *dus, *ldus; |
| 83 | struct timeval t; |
| 84 | |
Jens Axboe | c97bd0f | 2009-05-27 13:11:20 +0200 | [diff] [blame] | 85 | if (!du->users) |
| 86 | return; |
Jens Axboe | 90b97ac | 2010-06-21 12:35:02 +0200 | [diff] [blame] | 87 | if (get_io_ticks(du, &__dus)) |
| 88 | return; |
Jens Axboe | 9f8f206 | 2007-04-02 15:08:01 +0200 | [diff] [blame] | 89 | |
| 90 | dus = &du->dus; |
| 91 | ldus = &du->last_dus; |
| 92 | |
Jens Axboe | a3b4cf7 | 2014-04-11 12:17:53 -0600 | [diff] [blame] | 93 | dus->s.sectors[0] += (__dus.s.sectors[0] - ldus->s.sectors[0]); |
| 94 | dus->s.sectors[1] += (__dus.s.sectors[1] - ldus->s.sectors[1]); |
| 95 | dus->s.ios[0] += (__dus.s.ios[0] - ldus->s.ios[0]); |
| 96 | dus->s.ios[1] += (__dus.s.ios[1] - ldus->s.ios[1]); |
| 97 | dus->s.merges[0] += (__dus.s.merges[0] - ldus->s.merges[0]); |
| 98 | dus->s.merges[1] += (__dus.s.merges[1] - ldus->s.merges[1]); |
| 99 | dus->s.ticks[0] += (__dus.s.ticks[0] - ldus->s.ticks[0]); |
| 100 | dus->s.ticks[1] += (__dus.s.ticks[1] - ldus->s.ticks[1]); |
| 101 | dus->s.io_ticks += (__dus.s.io_ticks - ldus->s.io_ticks); |
| 102 | dus->s.time_in_queue += (__dus.s.time_in_queue - ldus->s.time_in_queue); |
Jens Axboe | 9f8f206 | 2007-04-02 15:08:01 +0200 | [diff] [blame] | 103 | |
| 104 | fio_gettime(&t, NULL); |
Jens Axboe | a3b4cf7 | 2014-04-11 12:17:53 -0600 | [diff] [blame] | 105 | dus->s.msec += mtime_since(&du->time, &t); |
Jens Axboe | 9f8f206 | 2007-04-02 15:08:01 +0200 | [diff] [blame] | 106 | memcpy(&du->time, &t, sizeof(t)); |
Jens Axboe | a3b4cf7 | 2014-04-11 12:17:53 -0600 | [diff] [blame] | 107 | memcpy(&ldus->s, &__dus.s, sizeof(__dus.s)); |
Jens Axboe | 9f8f206 | 2007-04-02 15:08:01 +0200 | [diff] [blame] | 108 | } |
| 109 | |
Jens Axboe | 9ec7779 | 2012-08-02 08:27:41 +0200 | [diff] [blame] | 110 | int update_io_ticks(void) |
Jens Axboe | 9f8f206 | 2007-04-02 15:08:01 +0200 | [diff] [blame] | 111 | { |
Jens Axboe | 01743ee | 2008-06-02 12:19:19 +0200 | [diff] [blame] | 112 | struct flist_head *entry; |
Jens Axboe | 9f8f206 | 2007-04-02 15:08:01 +0200 | [diff] [blame] | 113 | struct disk_util *du; |
Jens Axboe | 9ec7779 | 2012-08-02 08:27:41 +0200 | [diff] [blame] | 114 | int ret = 0; |
Jens Axboe | 9f8f206 | 2007-04-02 15:08:01 +0200 | [diff] [blame] | 115 | |
Jens Axboe | cd991b9 | 2008-03-07 13:19:35 +0100 | [diff] [blame] | 116 | dprint(FD_DISKUTIL, "update io ticks\n"); |
| 117 | |
Jens Axboe | 9ec7779 | 2012-08-02 08:27:41 +0200 | [diff] [blame] | 118 | fio_mutex_down(disk_util_mutex); |
| 119 | |
| 120 | if (!disk_util_exit) { |
| 121 | flist_for_each(entry, &disk_list) { |
| 122 | du = flist_entry(entry, struct disk_util, list); |
| 123 | update_io_tick_disk(du); |
| 124 | } |
| 125 | } else |
| 126 | ret = 1; |
| 127 | |
| 128 | fio_mutex_up(disk_util_mutex); |
| 129 | return ret; |
Jens Axboe | 9f8f206 | 2007-04-02 15:08:01 +0200 | [diff] [blame] | 130 | } |
| 131 | |
Jens Axboe | e11c410 | 2007-04-03 16:33:04 -0700 | [diff] [blame] | 132 | static struct disk_util *disk_util_exists(int major, int minor) |
Jens Axboe | 9f8f206 | 2007-04-02 15:08:01 +0200 | [diff] [blame] | 133 | { |
Jens Axboe | 01743ee | 2008-06-02 12:19:19 +0200 | [diff] [blame] | 134 | struct flist_head *entry; |
Jens Axboe | 9f8f206 | 2007-04-02 15:08:01 +0200 | [diff] [blame] | 135 | struct disk_util *du; |
| 136 | |
Jens Axboe | 9ec7779 | 2012-08-02 08:27:41 +0200 | [diff] [blame] | 137 | fio_mutex_down(disk_util_mutex); |
| 138 | |
Jens Axboe | 01743ee | 2008-06-02 12:19:19 +0200 | [diff] [blame] | 139 | flist_for_each(entry, &disk_list) { |
| 140 | du = flist_entry(entry, struct disk_util, list); |
Jens Axboe | 9f8f206 | 2007-04-02 15:08:01 +0200 | [diff] [blame] | 141 | |
Jens Axboe | 9ec7779 | 2012-08-02 08:27:41 +0200 | [diff] [blame] | 142 | if (major == du->major && minor == du->minor) { |
| 143 | fio_mutex_up(disk_util_mutex); |
Jens Axboe | e11c410 | 2007-04-03 16:33:04 -0700 | [diff] [blame] | 144 | return du; |
Jens Axboe | 9ec7779 | 2012-08-02 08:27:41 +0200 | [diff] [blame] | 145 | } |
Jens Axboe | 9f8f206 | 2007-04-02 15:08:01 +0200 | [diff] [blame] | 146 | } |
| 147 | |
Jens Axboe | 9ec7779 | 2012-08-02 08:27:41 +0200 | [diff] [blame] | 148 | fio_mutex_up(disk_util_mutex); |
Jens Axboe | e11c410 | 2007-04-03 16:33:04 -0700 | [diff] [blame] | 149 | return NULL; |
Jens Axboe | 9f8f206 | 2007-04-02 15:08:01 +0200 | [diff] [blame] | 150 | } |
| 151 | |
Shehjar Tikoo | 6742301 | 2008-09-30 10:35:44 +1000 | [diff] [blame] | 152 | static int get_device_numbers(char *file_name, int *maj, int *min) |
| 153 | { |
| 154 | struct stat st; |
| 155 | int majdev, mindev; |
| 156 | char tempname[PATH_MAX], *p; |
| 157 | |
| 158 | if (!lstat(file_name, &st)) { |
| 159 | if (S_ISBLK(st.st_mode)) { |
| 160 | majdev = major(st.st_rdev); |
| 161 | mindev = minor(st.st_rdev); |
| 162 | } else if (S_ISCHR(st.st_mode)) { |
| 163 | majdev = major(st.st_rdev); |
| 164 | mindev = minor(st.st_rdev); |
| 165 | if (fio_lookup_raw(st.st_rdev, &majdev, &mindev)) |
| 166 | return -1; |
| 167 | } else if (S_ISFIFO(st.st_mode)) |
| 168 | return -1; |
| 169 | else { |
| 170 | majdev = major(st.st_dev); |
| 171 | mindev = minor(st.st_dev); |
| 172 | } |
| 173 | } else { |
| 174 | /* |
| 175 | * must be a file, open "." in that path |
| 176 | */ |
| 177 | strncpy(tempname, file_name, PATH_MAX - 1); |
| 178 | p = dirname(tempname); |
| 179 | if (stat(p, &st)) { |
| 180 | perror("disk util stat"); |
| 181 | return -1; |
| 182 | } |
| 183 | |
| 184 | majdev = major(st.st_dev); |
| 185 | mindev = minor(st.st_dev); |
| 186 | } |
| 187 | |
| 188 | *min = mindev; |
| 189 | *maj = majdev; |
| 190 | |
| 191 | return 0; |
| 192 | } |
| 193 | |
| 194 | static int read_block_dev_entry(char *path, int *maj, int *min) |
| 195 | { |
| 196 | char line[256], *p; |
| 197 | FILE *f; |
| 198 | |
| 199 | f = fopen(path, "r"); |
| 200 | if (!f) { |
| 201 | perror("open path"); |
| 202 | return 1; |
| 203 | } |
| 204 | |
| 205 | p = fgets(line, sizeof(line), f); |
| 206 | fclose(f); |
| 207 | |
| 208 | if (!p) |
| 209 | return 1; |
| 210 | |
| 211 | if (sscanf(p, "%u:%u", maj, min) != 2) |
| 212 | return 1; |
| 213 | |
| 214 | return 0; |
| 215 | } |
| 216 | |
Shehjar Tikoo | 6742301 | 2008-09-30 10:35:44 +1000 | [diff] [blame] | 217 | static void find_add_disk_slaves(struct thread_data *td, char *path, |
Jens Axboe | 2db4ecc | 2009-09-11 22:22:41 +0200 | [diff] [blame] | 218 | struct disk_util *masterdu) |
Shehjar Tikoo | 6742301 | 2008-09-30 10:35:44 +1000 | [diff] [blame] | 219 | { |
| 220 | DIR *dirhandle = NULL; |
| 221 | struct dirent *dirent = NULL; |
| 222 | char slavesdir[PATH_MAX], temppath[PATH_MAX], slavepath[PATH_MAX]; |
| 223 | struct disk_util *slavedu = NULL; |
| 224 | int majdev, mindev; |
| 225 | ssize_t linklen; |
| 226 | |
Jens Axboe | 2db4ecc | 2009-09-11 22:22:41 +0200 | [diff] [blame] | 227 | sprintf(slavesdir, "%s/%s", path, "slaves"); |
Shehjar Tikoo | 6742301 | 2008-09-30 10:35:44 +1000 | [diff] [blame] | 228 | dirhandle = opendir(slavesdir); |
| 229 | if (!dirhandle) |
| 230 | return; |
| 231 | |
| 232 | while ((dirent = readdir(dirhandle)) != NULL) { |
Jens Axboe | 2db4ecc | 2009-09-11 22:22:41 +0200 | [diff] [blame] | 233 | if (!strcmp(dirent->d_name, ".") || |
| 234 | !strcmp(dirent->d_name, "..")) |
Shehjar Tikoo | 6742301 | 2008-09-30 10:35:44 +1000 | [diff] [blame] | 235 | continue; |
| 236 | |
Bruce Cran | b9fd788 | 2012-02-20 17:01:46 +0000 | [diff] [blame] | 237 | sprintf(temppath, "%s%s%s", slavesdir, FIO_OS_PATH_SEPARATOR, dirent->d_name); |
Shehjar Tikoo | 6742301 | 2008-09-30 10:35:44 +1000 | [diff] [blame] | 238 | /* Can we always assume that the slaves device entries |
| 239 | * are links to the real directories for the slave |
| 240 | * devices? |
| 241 | */ |
Jens Axboe | 976406b | 2014-04-08 21:15:09 -0600 | [diff] [blame] | 242 | linklen = readlink(temppath, slavepath, PATH_MAX - 1); |
Jens Axboe | 2db4ecc | 2009-09-11 22:22:41 +0200 | [diff] [blame] | 243 | if (linklen < 0) { |
Shehjar Tikoo | 6742301 | 2008-09-30 10:35:44 +1000 | [diff] [blame] | 244 | perror("readlink() for slave device."); |
Jens Axboe | f0cc675 | 2014-04-11 11:31:17 -0600 | [diff] [blame] | 245 | closedir(dirhandle); |
Shehjar Tikoo | 6742301 | 2008-09-30 10:35:44 +1000 | [diff] [blame] | 246 | return; |
| 247 | } |
Jens Axboe | 2db4ecc | 2009-09-11 22:22:41 +0200 | [diff] [blame] | 248 | slavepath[linklen] = '\0'; |
Shehjar Tikoo | 6742301 | 2008-09-30 10:35:44 +1000 | [diff] [blame] | 249 | |
| 250 | sprintf(temppath, "%s/%s/dev", slavesdir, slavepath); |
| 251 | if (read_block_dev_entry(temppath, &majdev, &mindev)) { |
| 252 | perror("Error getting slave device numbers."); |
Jens Axboe | f0cc675 | 2014-04-11 11:31:17 -0600 | [diff] [blame] | 253 | closedir(dirhandle); |
Shehjar Tikoo | 6742301 | 2008-09-30 10:35:44 +1000 | [diff] [blame] | 254 | return; |
| 255 | } |
| 256 | |
Alan D. Brunelle | b06de82 | 2009-09-11 14:57:10 -0400 | [diff] [blame] | 257 | /* |
| 258 | * See if this maj,min already exists |
| 259 | */ |
| 260 | slavedu = disk_util_exists(majdev, mindev); |
| 261 | if (slavedu) |
| 262 | continue; |
| 263 | |
Bruce Cran | b9fd788 | 2012-02-20 17:01:46 +0000 | [diff] [blame] | 264 | sprintf(temppath, "%s%s%s", slavesdir, FIO_OS_PATH_SEPARATOR, slavepath); |
Shehjar Tikoo | 6742301 | 2008-09-30 10:35:44 +1000 | [diff] [blame] | 265 | __init_per_file_disk_util(td, majdev, mindev, temppath); |
| 266 | slavedu = disk_util_exists(majdev, mindev); |
| 267 | |
| 268 | /* Should probably use an assert here. slavedu should |
| 269 | * always be present at this point. */ |
Jens Axboe | b8d541d | 2010-06-21 12:40:53 +0200 | [diff] [blame] | 270 | if (slavedu) { |
| 271 | slavedu->users++; |
Shehjar Tikoo | 6742301 | 2008-09-30 10:35:44 +1000 | [diff] [blame] | 272 | flist_add_tail(&slavedu->slavelist, &masterdu->slaves); |
Jens Axboe | b8d541d | 2010-06-21 12:40:53 +0200 | [diff] [blame] | 273 | } |
Shehjar Tikoo | 6742301 | 2008-09-30 10:35:44 +1000 | [diff] [blame] | 274 | } |
| 275 | |
| 276 | closedir(dirhandle); |
Shehjar Tikoo | 6742301 | 2008-09-30 10:35:44 +1000 | [diff] [blame] | 277 | } |
| 278 | |
Jens Axboe | b8fefc2 | 2011-09-08 13:08:05 +0200 | [diff] [blame] | 279 | static struct disk_util *disk_util_add(struct thread_data *td, int majdev, |
Jens Axboe | c97bd0f | 2009-05-27 13:11:20 +0200 | [diff] [blame] | 280 | int mindev, char *path) |
Jens Axboe | 9f8f206 | 2007-04-02 15:08:01 +0200 | [diff] [blame] | 281 | { |
| 282 | struct disk_util *du, *__du; |
Jens Axboe | 01743ee | 2008-06-02 12:19:19 +0200 | [diff] [blame] | 283 | struct flist_head *entry; |
Ken Raeburn | 4b919f7 | 2013-01-29 10:18:13 +0100 | [diff] [blame] | 284 | int l; |
Jens Axboe | 9f8f206 | 2007-04-02 15:08:01 +0200 | [diff] [blame] | 285 | |
Jens Axboe | cd991b9 | 2008-03-07 13:19:35 +0100 | [diff] [blame] | 286 | dprint(FD_DISKUTIL, "add maj/min %d/%d: %s\n", majdev, mindev, path); |
| 287 | |
Jens Axboe | c97bd0f | 2009-05-27 13:11:20 +0200 | [diff] [blame] | 288 | du = smalloc(sizeof(*du)); |
Jens Axboe | fba5c5f | 2013-01-29 22:29:09 +0100 | [diff] [blame] | 289 | if (!du) { |
| 290 | log_err("fio: smalloc() pool exhausted\n"); |
| 291 | return NULL; |
| 292 | } |
| 293 | |
Jens Axboe | 9f8f206 | 2007-04-02 15:08:01 +0200 | [diff] [blame] | 294 | memset(du, 0, sizeof(*du)); |
Jens Axboe | 01743ee | 2008-06-02 12:19:19 +0200 | [diff] [blame] | 295 | INIT_FLIST_HEAD(&du->list); |
Ken Raeburn | 4b919f7 | 2013-01-29 10:18:13 +0100 | [diff] [blame] | 296 | l = snprintf(du->path, sizeof(du->path), "%s/stat", path); |
| 297 | if (l < 0 || l >= sizeof(du->path)) { |
| 298 | log_err("constructed path \"%.100s[...]/stat\" larger than buffer (%zu bytes)\n", |
| 299 | path, sizeof(du->path) - 1); |
| 300 | sfree(du); |
| 301 | return NULL; |
| 302 | } |
Jens Axboe | a2ba41e | 2014-04-14 13:25:12 -0600 | [diff] [blame] | 303 | strncpy((char *) du->dus.name, basename(path), FIO_DU_NAME_SZ - 1); |
Jens Axboe | e11c410 | 2007-04-03 16:33:04 -0700 | [diff] [blame] | 304 | du->sysfs_root = path; |
Jens Axboe | 9f8f206 | 2007-04-02 15:08:01 +0200 | [diff] [blame] | 305 | du->major = majdev; |
| 306 | du->minor = mindev; |
Shehjar Tikoo | 6742301 | 2008-09-30 10:35:44 +1000 | [diff] [blame] | 307 | INIT_FLIST_HEAD(&du->slavelist); |
| 308 | INIT_FLIST_HEAD(&du->slaves); |
Jens Axboe | 521da52 | 2012-08-02 11:21:36 +0200 | [diff] [blame] | 309 | du->lock = fio_mutex_init(FIO_MUTEX_UNLOCKED); |
Jens Axboe | c97bd0f | 2009-05-27 13:11:20 +0200 | [diff] [blame] | 310 | du->users = 0; |
Jens Axboe | 9f8f206 | 2007-04-02 15:08:01 +0200 | [diff] [blame] | 311 | |
Jens Axboe | 9ec7779 | 2012-08-02 08:27:41 +0200 | [diff] [blame] | 312 | fio_mutex_down(disk_util_mutex); |
| 313 | |
Jens Axboe | 01743ee | 2008-06-02 12:19:19 +0200 | [diff] [blame] | 314 | flist_for_each(entry, &disk_list) { |
| 315 | __du = flist_entry(entry, struct disk_util, list); |
Jens Axboe | 9f8f206 | 2007-04-02 15:08:01 +0200 | [diff] [blame] | 316 | |
Jens Axboe | d09a64a | 2011-10-13 11:38:56 +0200 | [diff] [blame] | 317 | dprint(FD_DISKUTIL, "found %s in list\n", __du->dus.name); |
Jens Axboe | cd991b9 | 2008-03-07 13:19:35 +0100 | [diff] [blame] | 318 | |
Jens Axboe | d09a64a | 2011-10-13 11:38:56 +0200 | [diff] [blame] | 319 | if (!strcmp((char *) du->dus.name, (char *) __du->dus.name)) { |
Jens Axboe | c97bd0f | 2009-05-27 13:11:20 +0200 | [diff] [blame] | 320 | disk_util_free(du); |
Jens Axboe | 9ec7779 | 2012-08-02 08:27:41 +0200 | [diff] [blame] | 321 | fio_mutex_up(disk_util_mutex); |
Jens Axboe | c97bd0f | 2009-05-27 13:11:20 +0200 | [diff] [blame] | 322 | return __du; |
Jens Axboe | 9f8f206 | 2007-04-02 15:08:01 +0200 | [diff] [blame] | 323 | } |
| 324 | } |
| 325 | |
Jens Axboe | d09a64a | 2011-10-13 11:38:56 +0200 | [diff] [blame] | 326 | dprint(FD_DISKUTIL, "add %s to list\n", du->dus.name); |
Jens Axboe | cd991b9 | 2008-03-07 13:19:35 +0100 | [diff] [blame] | 327 | |
Jens Axboe | 9f8f206 | 2007-04-02 15:08:01 +0200 | [diff] [blame] | 328 | fio_gettime(&du->time, NULL); |
| 329 | get_io_ticks(du, &du->last_dus); |
| 330 | |
Jens Axboe | 01743ee | 2008-06-02 12:19:19 +0200 | [diff] [blame] | 331 | flist_add_tail(&du->list, &disk_list); |
Jens Axboe | 9ec7779 | 2012-08-02 08:27:41 +0200 | [diff] [blame] | 332 | fio_mutex_up(disk_util_mutex); |
| 333 | |
Shehjar Tikoo | 6742301 | 2008-09-30 10:35:44 +1000 | [diff] [blame] | 334 | find_add_disk_slaves(td, path, du); |
Jens Axboe | c97bd0f | 2009-05-27 13:11:20 +0200 | [diff] [blame] | 335 | return du; |
Jens Axboe | 9f8f206 | 2007-04-02 15:08:01 +0200 | [diff] [blame] | 336 | } |
| 337 | |
| 338 | static int check_dev_match(int majdev, int mindev, char *path) |
| 339 | { |
| 340 | int major, minor; |
Jens Axboe | 9f8f206 | 2007-04-02 15:08:01 +0200 | [diff] [blame] | 341 | |
Shehjar Tikoo | 6742301 | 2008-09-30 10:35:44 +1000 | [diff] [blame] | 342 | if (read_block_dev_entry(path, &major, &minor)) |
Jens Axboe | 9f8f206 | 2007-04-02 15:08:01 +0200 | [diff] [blame] | 343 | return 1; |
Jens Axboe | 9f8f206 | 2007-04-02 15:08:01 +0200 | [diff] [blame] | 344 | |
Jens Axboe | c97bd0f | 2009-05-27 13:11:20 +0200 | [diff] [blame] | 345 | if (majdev == major && mindev == minor) |
Jens Axboe | 9f8f206 | 2007-04-02 15:08:01 +0200 | [diff] [blame] | 346 | return 0; |
Jens Axboe | 9f8f206 | 2007-04-02 15:08:01 +0200 | [diff] [blame] | 347 | |
Jens Axboe | 9f8f206 | 2007-04-02 15:08:01 +0200 | [diff] [blame] | 348 | return 1; |
| 349 | } |
| 350 | |
Jens Axboe | ac0be2a | 2008-06-06 12:08:04 +0200 | [diff] [blame] | 351 | static int find_block_dir(int majdev, int mindev, char *path, int link_ok) |
Jens Axboe | 9f8f206 | 2007-04-02 15:08:01 +0200 | [diff] [blame] | 352 | { |
| 353 | struct dirent *dir; |
| 354 | struct stat st; |
| 355 | int found = 0; |
| 356 | DIR *D; |
| 357 | |
| 358 | D = opendir(path); |
| 359 | if (!D) |
| 360 | return 0; |
| 361 | |
| 362 | while ((dir = readdir(D)) != NULL) { |
| 363 | char full_path[256]; |
| 364 | |
| 365 | if (!strcmp(dir->d_name, ".") || !strcmp(dir->d_name, "..")) |
| 366 | continue; |
| 367 | |
Bruce Cran | b9fd788 | 2012-02-20 17:01:46 +0000 | [diff] [blame] | 368 | sprintf(full_path, "%s%s%s", path, FIO_OS_PATH_SEPARATOR, dir->d_name); |
Jens Axboe | 9f8f206 | 2007-04-02 15:08:01 +0200 | [diff] [blame] | 369 | |
| 370 | if (!strcmp(dir->d_name, "dev")) { |
| 371 | if (!check_dev_match(majdev, mindev, full_path)) { |
| 372 | found = 1; |
| 373 | break; |
| 374 | } |
| 375 | } |
| 376 | |
Jens Axboe | ac0be2a | 2008-06-06 12:08:04 +0200 | [diff] [blame] | 377 | if (link_ok) { |
| 378 | if (stat(full_path, &st) == -1) { |
| 379 | perror("stat"); |
| 380 | break; |
| 381 | } |
| 382 | } else { |
| 383 | if (lstat(full_path, &st) == -1) { |
| 384 | perror("stat"); |
| 385 | break; |
| 386 | } |
Jens Axboe | 9f8f206 | 2007-04-02 15:08:01 +0200 | [diff] [blame] | 387 | } |
| 388 | |
| 389 | if (!S_ISDIR(st.st_mode) || S_ISLNK(st.st_mode)) |
| 390 | continue; |
| 391 | |
Jens Axboe | ac0be2a | 2008-06-06 12:08:04 +0200 | [diff] [blame] | 392 | found = find_block_dir(majdev, mindev, full_path, 0); |
Jens Axboe | 9f8f206 | 2007-04-02 15:08:01 +0200 | [diff] [blame] | 393 | if (found) { |
| 394 | strcpy(path, full_path); |
| 395 | break; |
| 396 | } |
| 397 | } |
| 398 | |
| 399 | closedir(D); |
| 400 | return found; |
| 401 | } |
| 402 | |
Jens Axboe | c97bd0f | 2009-05-27 13:11:20 +0200 | [diff] [blame] | 403 | static struct disk_util *__init_per_file_disk_util(struct thread_data *td, |
| 404 | int majdev, int mindev, |
| 405 | char *path) |
Jens Axboe | 9f8f206 | 2007-04-02 15:08:01 +0200 | [diff] [blame] | 406 | { |
| 407 | struct stat st; |
Shehjar Tikoo | 6742301 | 2008-09-30 10:35:44 +1000 | [diff] [blame] | 408 | char tmp[PATH_MAX]; |
Jens Axboe | 9f8f206 | 2007-04-02 15:08:01 +0200 | [diff] [blame] | 409 | char *p; |
| 410 | |
Shehjar Tikoo | 6742301 | 2008-09-30 10:35:44 +1000 | [diff] [blame] | 411 | /* |
| 412 | * If there's a ../queue/ directory there, we are inside a partition. |
| 413 | * Check if that is the case and jump back. For loop/md/dm etc we |
| 414 | * are already in the right spot. |
| 415 | */ |
| 416 | sprintf(tmp, "%s/../queue", path); |
| 417 | if (!stat(tmp, &st)) { |
| 418 | p = dirname(path); |
| 419 | sprintf(tmp, "%s/queue", p); |
| 420 | if (stat(tmp, &st)) { |
| 421 | log_err("unknown sysfs layout\n"); |
Jens Axboe | c97bd0f | 2009-05-27 13:11:20 +0200 | [diff] [blame] | 422 | return NULL; |
Jens Axboe | 9f8f206 | 2007-04-02 15:08:01 +0200 | [diff] [blame] | 423 | } |
Shehjar Tikoo | 6742301 | 2008-09-30 10:35:44 +1000 | [diff] [blame] | 424 | strncpy(tmp, p, PATH_MAX - 1); |
| 425 | sprintf(path, "%s", tmp); |
Jens Axboe | 9f8f206 | 2007-04-02 15:08:01 +0200 | [diff] [blame] | 426 | } |
| 427 | |
Shehjar Tikoo | 6742301 | 2008-09-30 10:35:44 +1000 | [diff] [blame] | 428 | if (td->o.ioscheduler && !td->sysfs_root) |
| 429 | td->sysfs_root = strdup(path); |
| 430 | |
Jens Axboe | c97bd0f | 2009-05-27 13:11:20 +0200 | [diff] [blame] | 431 | return disk_util_add(td, majdev, mindev, path); |
Shehjar Tikoo | 6742301 | 2008-09-30 10:35:44 +1000 | [diff] [blame] | 432 | } |
| 433 | |
Jens Axboe | c97bd0f | 2009-05-27 13:11:20 +0200 | [diff] [blame] | 434 | static struct disk_util *init_per_file_disk_util(struct thread_data *td, |
| 435 | char *filename) |
Shehjar Tikoo | 6742301 | 2008-09-30 10:35:44 +1000 | [diff] [blame] | 436 | { |
| 437 | |
| 438 | char foo[PATH_MAX]; |
| 439 | struct disk_util *du; |
| 440 | int mindev, majdev; |
| 441 | |
Jens Axboe | c97bd0f | 2009-05-27 13:11:20 +0200 | [diff] [blame] | 442 | if (get_device_numbers(filename, &majdev, &mindev)) |
| 443 | return NULL; |
Shehjar Tikoo | 6742301 | 2008-09-30 10:35:44 +1000 | [diff] [blame] | 444 | |
| 445 | dprint(FD_DISKUTIL, "%s belongs to maj/min %d/%d\n", filename, majdev, |
| 446 | mindev); |
Jens Axboe | cd991b9 | 2008-03-07 13:19:35 +0100 | [diff] [blame] | 447 | |
Jens Axboe | e11c410 | 2007-04-03 16:33:04 -0700 | [diff] [blame] | 448 | du = disk_util_exists(majdev, mindev); |
| 449 | if (du) { |
| 450 | if (td->o.ioscheduler && !td->sysfs_root) |
| 451 | td->sysfs_root = strdup(du->sysfs_root); |
| 452 | |
Jens Axboe | c97bd0f | 2009-05-27 13:11:20 +0200 | [diff] [blame] | 453 | return du; |
Jens Axboe | e11c410 | 2007-04-03 16:33:04 -0700 | [diff] [blame] | 454 | } |
Jens Axboe | 9f8f206 | 2007-04-02 15:08:01 +0200 | [diff] [blame] | 455 | |
| 456 | /* |
| 457 | * for an fs without a device, we will repeatedly stat through |
| 458 | * sysfs which can take oodles of time for thousands of files. so |
| 459 | * cache the last lookup and compare with that before going through |
| 460 | * everything again. |
| 461 | */ |
| 462 | if (mindev == last_mindev && majdev == last_majdev) |
Jens Axboe | c97bd0f | 2009-05-27 13:11:20 +0200 | [diff] [blame] | 463 | return last_du; |
Jens Axboe | 9f8f206 | 2007-04-02 15:08:01 +0200 | [diff] [blame] | 464 | |
| 465 | last_mindev = mindev; |
| 466 | last_majdev = majdev; |
Jens Axboe | 5ec10ea | 2008-03-06 15:42:00 +0100 | [diff] [blame] | 467 | |
Jens Axboe | 9f8f206 | 2007-04-02 15:08:01 +0200 | [diff] [blame] | 468 | sprintf(foo, "/sys/block"); |
Jens Axboe | ac0be2a | 2008-06-06 12:08:04 +0200 | [diff] [blame] | 469 | if (!find_block_dir(majdev, mindev, foo, 1)) |
Jens Axboe | c97bd0f | 2009-05-27 13:11:20 +0200 | [diff] [blame] | 470 | return NULL; |
Jens Axboe | 9f8f206 | 2007-04-02 15:08:01 +0200 | [diff] [blame] | 471 | |
Jens Axboe | c97bd0f | 2009-05-27 13:11:20 +0200 | [diff] [blame] | 472 | return __init_per_file_disk_util(td, majdev, mindev, foo); |
Shehjar Tikoo | 6742301 | 2008-09-30 10:35:44 +1000 | [diff] [blame] | 473 | } |
Jens Axboe | 9f8f206 | 2007-04-02 15:08:01 +0200 | [diff] [blame] | 474 | |
Jens Axboe | c97bd0f | 2009-05-27 13:11:20 +0200 | [diff] [blame] | 475 | static struct disk_util *__init_disk_util(struct thread_data *td, |
| 476 | struct fio_file *f) |
Shehjar Tikoo | 6742301 | 2008-09-30 10:35:44 +1000 | [diff] [blame] | 477 | { |
| 478 | return init_per_file_disk_util(td, f->file_name); |
Jens Axboe | 9f8f206 | 2007-04-02 15:08:01 +0200 | [diff] [blame] | 479 | } |
| 480 | |
| 481 | void init_disk_util(struct thread_data *td) |
| 482 | { |
| 483 | struct fio_file *f; |
| 484 | unsigned int i; |
| 485 | |
| 486 | if (!td->o.do_disk_util || |
| 487 | (td->io_ops->flags & (FIO_DISKLESSIO | FIO_NODISKUTIL))) |
| 488 | return; |
| 489 | |
| 490 | for_each_file(td, f, i) |
Jens Axboe | c97bd0f | 2009-05-27 13:11:20 +0200 | [diff] [blame] | 491 | f->du = __init_disk_util(td, f); |
Jens Axboe | 9f8f206 | 2007-04-02 15:08:01 +0200 | [diff] [blame] | 492 | } |
| 493 | |
Jens Axboe | f2f788d | 2011-10-13 14:03:52 +0200 | [diff] [blame] | 494 | static void show_agg_stats(struct disk_util_agg *agg, int terse) |
Jens Axboe | d09a64a | 2011-10-13 11:38:56 +0200 | [diff] [blame] | 495 | { |
| 496 | if (!agg->slavecount) |
| 497 | return; |
| 498 | |
Jens Axboe | f2f788d | 2011-10-13 14:03:52 +0200 | [diff] [blame] | 499 | if (!terse) { |
| 500 | log_info(", aggrios=%u/%u, aggrmerge=%u/%u, aggrticks=%u/%u," |
| 501 | " aggrin_queue=%u, aggrutil=%3.2f%%", |
| 502 | agg->ios[0] / agg->slavecount, |
| 503 | agg->ios[1] / agg->slavecount, |
| 504 | agg->merges[0] / agg->slavecount, |
| 505 | agg->merges[1] / agg->slavecount, |
| 506 | agg->ticks[0] / agg->slavecount, |
| 507 | agg->ticks[1] / agg->slavecount, |
| 508 | agg->time_in_queue / agg->slavecount, |
| 509 | agg->max_util.u.f); |
| 510 | } else { |
Jens Axboe | 97b007e | 2012-02-10 19:21:50 +0100 | [diff] [blame] | 511 | log_info(";slaves;%u;%u;%u;%u;%u;%u;%u;%3.2f%%", |
Jens Axboe | f2f788d | 2011-10-13 14:03:52 +0200 | [diff] [blame] | 512 | agg->ios[0] / agg->slavecount, |
| 513 | agg->ios[1] / agg->slavecount, |
| 514 | agg->merges[0] / agg->slavecount, |
| 515 | agg->merges[1] / agg->slavecount, |
| 516 | agg->ticks[0] / agg->slavecount, |
| 517 | agg->ticks[1] / agg->slavecount, |
| 518 | agg->time_in_queue / agg->slavecount, |
| 519 | agg->max_util.u.f); |
| 520 | } |
Jens Axboe | d09a64a | 2011-10-13 11:38:56 +0200 | [diff] [blame] | 521 | } |
| 522 | |
Shehjar Tikoo | 043b74b | 2008-09-30 11:11:35 +1000 | [diff] [blame] | 523 | static void aggregate_slaves_stats(struct disk_util *masterdu) |
| 524 | { |
Jens Axboe | d09a64a | 2011-10-13 11:38:56 +0200 | [diff] [blame] | 525 | struct disk_util_agg *agg = &masterdu->agg; |
Shehjar Tikoo | 043b74b | 2008-09-30 11:11:35 +1000 | [diff] [blame] | 526 | struct disk_util_stat *dus; |
| 527 | struct flist_head *entry; |
| 528 | struct disk_util *slavedu; |
Jens Axboe | d09a64a | 2011-10-13 11:38:56 +0200 | [diff] [blame] | 529 | double util; |
Shehjar Tikoo | 043b74b | 2008-09-30 11:11:35 +1000 | [diff] [blame] | 530 | |
| 531 | flist_for_each(entry, &masterdu->slaves) { |
| 532 | slavedu = flist_entry(entry, struct disk_util, slavelist); |
| 533 | dus = &slavedu->dus; |
Jens Axboe | a3b4cf7 | 2014-04-11 12:17:53 -0600 | [diff] [blame] | 534 | agg->ios[0] += dus->s.ios[0]; |
| 535 | agg->ios[1] += dus->s.ios[1]; |
| 536 | agg->merges[0] += dus->s.merges[0]; |
| 537 | agg->merges[1] += dus->s.merges[1]; |
| 538 | agg->sectors[0] += dus->s.sectors[0]; |
| 539 | agg->sectors[1] += dus->s.sectors[1]; |
| 540 | agg->ticks[0] += dus->s.ticks[0]; |
| 541 | agg->ticks[1] += dus->s.ticks[1]; |
| 542 | agg->time_in_queue += dus->s.time_in_queue; |
Jens Axboe | d09a64a | 2011-10-13 11:38:56 +0200 | [diff] [blame] | 543 | agg->slavecount++; |
Shehjar Tikoo | 043b74b | 2008-09-30 11:11:35 +1000 | [diff] [blame] | 544 | |
Jens Axboe | a3b4cf7 | 2014-04-11 12:17:53 -0600 | [diff] [blame] | 545 | util = (double) (100 * dus->s.io_ticks / (double) slavedu->dus.s.msec); |
Shehjar Tikoo | 043b74b | 2008-09-30 11:11:35 +1000 | [diff] [blame] | 546 | /* System utilization is the utilization of the |
| 547 | * component with the highest utilization. |
| 548 | */ |
Jens Axboe | d09a64a | 2011-10-13 11:38:56 +0200 | [diff] [blame] | 549 | if (util > agg->max_util.u.f) |
| 550 | agg->max_util.u.f = util; |
Shehjar Tikoo | 043b74b | 2008-09-30 11:11:35 +1000 | [diff] [blame] | 551 | |
| 552 | } |
| 553 | |
Jens Axboe | d09a64a | 2011-10-13 11:38:56 +0200 | [diff] [blame] | 554 | if (agg->max_util.u.f > 100.0) |
| 555 | agg->max_util.u.f = 100.0; |
| 556 | } |
Shehjar Tikoo | 043b74b | 2008-09-30 11:11:35 +1000 | [diff] [blame] | 557 | |
Jens Axboe | 2735718 | 2012-09-27 11:31:50 +0200 | [diff] [blame] | 558 | void disk_util_prune_entries(void) |
Jens Axboe | d09a64a | 2011-10-13 11:38:56 +0200 | [diff] [blame] | 559 | { |
Jens Axboe | 9ec7779 | 2012-08-02 08:27:41 +0200 | [diff] [blame] | 560 | fio_mutex_down(disk_util_mutex); |
| 561 | |
Jens Axboe | d09a64a | 2011-10-13 11:38:56 +0200 | [diff] [blame] | 562 | while (!flist_empty(&disk_list)) { |
Jens Axboe | 2735718 | 2012-09-27 11:31:50 +0200 | [diff] [blame] | 563 | struct disk_util *du; |
| 564 | |
Jens Axboe | d09a64a | 2011-10-13 11:38:56 +0200 | [diff] [blame] | 565 | du = flist_entry(disk_list.next, struct disk_util, list); |
| 566 | flist_del(&du->list); |
| 567 | disk_util_free(du); |
| 568 | } |
| 569 | |
| 570 | last_majdev = last_mindev = -1; |
Jens Axboe | 9ec7779 | 2012-08-02 08:27:41 +0200 | [diff] [blame] | 571 | fio_mutex_up(disk_util_mutex); |
| 572 | fio_mutex_remove(disk_util_mutex); |
Jens Axboe | d09a64a | 2011-10-13 11:38:56 +0200 | [diff] [blame] | 573 | } |
| 574 | |
Jens Axboe | f2f788d | 2011-10-13 14:03:52 +0200 | [diff] [blame] | 575 | void print_disk_util(struct disk_util_stat *dus, struct disk_util_agg *agg, |
| 576 | int terse) |
Jens Axboe | d09a64a | 2011-10-13 11:38:56 +0200 | [diff] [blame] | 577 | { |
Jens Axboe | 6914f59 | 2012-02-03 12:06:19 +0100 | [diff] [blame] | 578 | double util = 0; |
Jens Axboe | d09a64a | 2011-10-13 11:38:56 +0200 | [diff] [blame] | 579 | |
Jens Axboe | a3b4cf7 | 2014-04-11 12:17:53 -0600 | [diff] [blame] | 580 | if (dus->s.msec) |
| 581 | util = (double) 100 * dus->s.io_ticks / (double) dus->s.msec; |
Jens Axboe | d09a64a | 2011-10-13 11:38:56 +0200 | [diff] [blame] | 582 | if (util > 100.0) |
| 583 | util = 100.0; |
| 584 | |
Jens Axboe | f2f788d | 2011-10-13 14:03:52 +0200 | [diff] [blame] | 585 | if (!terse) { |
Jens Axboe | f1d6455 | 2012-02-10 19:30:23 +0100 | [diff] [blame] | 586 | if (agg->slavecount) |
| 587 | log_info(" "); |
| 588 | |
Jens Axboe | f2f788d | 2011-10-13 14:03:52 +0200 | [diff] [blame] | 589 | log_info(" %s: ios=%u/%u, merge=%u/%u, ticks=%u/%u, " |
| 590 | "in_queue=%u, util=%3.2f%%", dus->name, |
Jens Axboe | a3b4cf7 | 2014-04-11 12:17:53 -0600 | [diff] [blame] | 591 | dus->s.ios[0], dus->s.ios[1], |
| 592 | dus->s.merges[0], dus->s.merges[1], |
| 593 | dus->s.ticks[0], dus->s.ticks[1], |
| 594 | dus->s.time_in_queue, util); |
Jens Axboe | f2f788d | 2011-10-13 14:03:52 +0200 | [diff] [blame] | 595 | } else { |
Jens Axboe | 3d7cd9b | 2011-10-18 08:31:01 +0200 | [diff] [blame] | 596 | log_info(";%s;%u;%u;%u;%u;%u;%u;%u;%3.2f%%", |
Jens Axboe | a3b4cf7 | 2014-04-11 12:17:53 -0600 | [diff] [blame] | 597 | dus->name, dus->s.ios[0], |
| 598 | dus->s.ios[1], dus->s.merges[0], |
| 599 | dus->s.merges[1], dus->s.ticks[0], |
| 600 | dus->s.ticks[1], |
| 601 | dus->s.time_in_queue, util); |
Jens Axboe | f2f788d | 2011-10-13 14:03:52 +0200 | [diff] [blame] | 602 | } |
Jens Axboe | d09a64a | 2011-10-13 11:38:56 +0200 | [diff] [blame] | 603 | |
| 604 | /* |
| 605 | * If the device has slaves, aggregate the stats for |
| 606 | * those slave devices also. |
| 607 | */ |
Jens Axboe | f1d6455 | 2012-02-10 19:30:23 +0100 | [diff] [blame] | 608 | show_agg_stats(agg, terse); |
Jens Axboe | d09a64a | 2011-10-13 11:38:56 +0200 | [diff] [blame] | 609 | |
Jens Axboe | f2f788d | 2011-10-13 14:03:52 +0200 | [diff] [blame] | 610 | if (!terse) |
| 611 | log_info("\n"); |
Shehjar Tikoo | 043b74b | 2008-09-30 11:11:35 +1000 | [diff] [blame] | 612 | } |
| 613 | |
Castor Fu | 952b05e | 2013-10-31 11:00:34 -0600 | [diff] [blame] | 614 | void json_array_add_disk_util(struct disk_util_stat *dus, |
| 615 | struct disk_util_agg *agg, struct json_array *array) |
Shaohua Li | cc372b1 | 2012-09-17 09:12:18 +0200 | [diff] [blame] | 616 | { |
Shaohua Li | cc372b1 | 2012-09-17 09:12:18 +0200 | [diff] [blame] | 617 | struct json_object *obj; |
Castor Fu | 952b05e | 2013-10-31 11:00:34 -0600 | [diff] [blame] | 618 | double util = 0; |
Shaohua Li | cc372b1 | 2012-09-17 09:12:18 +0200 | [diff] [blame] | 619 | |
Jens Axboe | a3b4cf7 | 2014-04-11 12:17:53 -0600 | [diff] [blame] | 620 | if (dus->s.msec) |
| 621 | util = (double) 100 * dus->s.io_ticks / (double) dus->s.msec; |
Shaohua Li | cc372b1 | 2012-09-17 09:12:18 +0200 | [diff] [blame] | 622 | if (util > 100.0) |
| 623 | util = 100.0; |
| 624 | |
Castor Fu | 952b05e | 2013-10-31 11:00:34 -0600 | [diff] [blame] | 625 | obj = json_create_object(); |
| 626 | json_array_add_value_object(array, obj); |
Shaohua Li | cc372b1 | 2012-09-17 09:12:18 +0200 | [diff] [blame] | 627 | |
| 628 | json_object_add_value_string(obj, "name", dus->name); |
Jens Axboe | a3b4cf7 | 2014-04-11 12:17:53 -0600 | [diff] [blame] | 629 | json_object_add_value_int(obj, "read_ios", dus->s.ios[0]); |
| 630 | json_object_add_value_int(obj, "write_ios", dus->s.ios[1]); |
| 631 | json_object_add_value_int(obj, "read_merges", dus->s.merges[0]); |
| 632 | json_object_add_value_int(obj, "write_merges", dus->s.merges[1]); |
| 633 | json_object_add_value_int(obj, "read_ticks", dus->s.ticks[0]); |
| 634 | json_object_add_value_int(obj, "write_ticks", dus->s.ticks[1]); |
| 635 | json_object_add_value_int(obj, "in_queue", dus->s.time_in_queue); |
Shaohua Li | cc372b1 | 2012-09-17 09:12:18 +0200 | [diff] [blame] | 636 | json_object_add_value_float(obj, "util", util); |
| 637 | |
| 638 | /* |
| 639 | * If the device has slaves, aggregate the stats for |
| 640 | * those slave devices also. |
| 641 | */ |
| 642 | if (!agg->slavecount) |
| 643 | return; |
| 644 | json_object_add_value_int(obj, "aggr_read_ios", |
| 645 | agg->ios[0] / agg->slavecount); |
| 646 | json_object_add_value_int(obj, "aggr_write_ios", |
| 647 | agg->ios[1] / agg->slavecount); |
| 648 | json_object_add_value_int(obj, "aggr_read_merges", |
| 649 | agg->merges[0] / agg->slavecount); |
| 650 | json_object_add_value_int(obj, "aggr_write_merge", |
| 651 | agg->merges[1] / agg->slavecount); |
| 652 | json_object_add_value_int(obj, "aggr_read_ticks", |
| 653 | agg->ticks[0] / agg->slavecount); |
| 654 | json_object_add_value_int(obj, "aggr_write_ticks", |
| 655 | agg->ticks[1] / agg->slavecount); |
| 656 | json_object_add_value_int(obj, "aggr_in_queue", |
| 657 | agg->time_in_queue / agg->slavecount); |
| 658 | json_object_add_value_float(obj, "aggr_util", agg->max_util.u.f); |
| 659 | } |
| 660 | |
Jens Axboe | 10aa136 | 2014-04-01 21:10:36 -0600 | [diff] [blame] | 661 | static void json_object_add_disk_utils(struct json_object *obj, |
| 662 | struct flist_head *head) |
Castor Fu | 952b05e | 2013-10-31 11:00:34 -0600 | [diff] [blame] | 663 | { |
| 664 | struct json_array *array = json_create_array(); |
| 665 | struct flist_head *entry; |
| 666 | struct disk_util *du; |
| 667 | |
| 668 | json_object_add_value_array(obj, "disk_util", array); |
| 669 | |
| 670 | flist_for_each(entry, head) { |
| 671 | du = flist_entry(entry, struct disk_util, list); |
| 672 | |
| 673 | aggregate_slaves_stats(du); |
| 674 | json_array_add_disk_util(&du->dus, &du->agg, array); |
| 675 | } |
| 676 | } |
| 677 | |
Shaohua Li | cc372b1 | 2012-09-17 09:12:18 +0200 | [diff] [blame] | 678 | void show_disk_util(int terse, struct json_object *parent) |
Jens Axboe | 9f8f206 | 2007-04-02 15:08:01 +0200 | [diff] [blame] | 679 | { |
Jens Axboe | d09a64a | 2011-10-13 11:38:56 +0200 | [diff] [blame] | 680 | struct flist_head *entry; |
Jens Axboe | 9f8f206 | 2007-04-02 15:08:01 +0200 | [diff] [blame] | 681 | struct disk_util *du; |
Jens Axboe | 9f8f206 | 2007-04-02 15:08:01 +0200 | [diff] [blame] | 682 | |
Jens Axboe | 9ec7779 | 2012-08-02 08:27:41 +0200 | [diff] [blame] | 683 | fio_mutex_down(disk_util_mutex); |
| 684 | |
| 685 | if (flist_empty(&disk_list)) { |
| 686 | fio_mutex_up(disk_util_mutex); |
Jens Axboe | 0a839f3 | 2007-04-26 09:02:34 +0200 | [diff] [blame] | 687 | return; |
Jens Axboe | 9ec7779 | 2012-08-02 08:27:41 +0200 | [diff] [blame] | 688 | } |
Jens Axboe | 0a839f3 | 2007-04-26 09:02:34 +0200 | [diff] [blame] | 689 | |
Jens Axboe | 9edf7b3 | 2014-04-14 13:19:13 -0600 | [diff] [blame] | 690 | if (output_format == FIO_OUTPUT_JSON) |
| 691 | assert(parent); |
| 692 | |
| 693 | if (!terse && output_format != FIO_OUTPUT_JSON) |
Jens Axboe | f2f788d | 2011-10-13 14:03:52 +0200 | [diff] [blame] | 694 | log_info("\nDisk stats (read/write):\n"); |
Jens Axboe | 9f8f206 | 2007-04-02 15:08:01 +0200 | [diff] [blame] | 695 | |
Jens Axboe | 9edf7b3 | 2014-04-14 13:19:13 -0600 | [diff] [blame] | 696 | if (output_format == FIO_OUTPUT_JSON) |
Castor Fu | 952b05e | 2013-10-31 11:00:34 -0600 | [diff] [blame] | 697 | json_object_add_disk_utils(parent, &disk_list); |
Jens Axboe | 9edf7b3 | 2014-04-14 13:19:13 -0600 | [diff] [blame] | 698 | else |
Castor Fu | 952b05e | 2013-10-31 11:00:34 -0600 | [diff] [blame] | 699 | flist_for_each(entry, &disk_list) { |
| 700 | du = flist_entry(entry, struct disk_util, list); |
Shaohua Li | cc372b1 | 2012-09-17 09:12:18 +0200 | [diff] [blame] | 701 | |
Castor Fu | 952b05e | 2013-10-31 11:00:34 -0600 | [diff] [blame] | 702 | aggregate_slaves_stats(du); |
Shaohua Li | cc372b1 | 2012-09-17 09:12:18 +0200 | [diff] [blame] | 703 | print_disk_util(&du->dus, &du->agg, terse); |
Castor Fu | 952b05e | 2013-10-31 11:00:34 -0600 | [diff] [blame] | 704 | } |
Jens Axboe | 9ec7779 | 2012-08-02 08:27:41 +0200 | [diff] [blame] | 705 | |
| 706 | fio_mutex_up(disk_util_mutex); |
| 707 | } |
| 708 | |
| 709 | void setup_disk_util(void) |
| 710 | { |
Jens Axboe | 521da52 | 2012-08-02 11:21:36 +0200 | [diff] [blame] | 711 | disk_util_mutex = fio_mutex_init(FIO_MUTEX_UNLOCKED); |
Jens Axboe | 9f8f206 | 2007-04-02 15:08:01 +0200 | [diff] [blame] | 712 | } |