4 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License version 2 only,
8 * as published by the Free Software Foundation.
10 * This program is distributed in the hope that it will be useful, but
11 * WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 * General Public License version 2 for more details (a copy is included
14 * in the LICENSE file that accompanied this code).
16 * You should have received a copy of the GNU General Public License
17 * version 2 along with this program; If not, see
18 * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
20 * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
21 * CA 95054 USA or visit www.sun.com if you need additional information or
27 * Copyright (c) 2008, 2010, Oracle and/or its affiliates. All rights reserved.
28 * Use is subject to license terms.
30 * Copyright (c) 2011, 2015, Intel Corporation.
33 * This file is part of Lustre, http://www.lustre.org/
34 * Lustre is a trademark of Sun Microsystems, Inc.
36 * lustre/osd/osd_lproc.c
38 * Author: Mikhail Pershin <tappro@sun.com>
41 #define DEBUG_SUBSYSTEM S_OSD
43 #include <lprocfs_status.h>
44 #include <lustre/lustre_idl.h>
46 #include "osd_internal.h"
50 void osd_brw_stats_update(struct osd_device *osd, struct osd_iobuf *iobuf)
52 struct brw_stats *s = &osd->od_brw_stats;
53 sector_t *last_block = NULL;
54 struct page **pages = iobuf->dr_pages;
55 struct page *last_page = NULL;
56 unsigned long discont_pages = 0;
57 unsigned long discont_blocks = 0;
58 sector_t *blocks = iobuf->dr_blocks;
59 int i, nr_pages = iobuf->dr_npages;
61 int rw = iobuf->dr_rw;
63 if (unlikely(nr_pages == 0))
66 blocks_per_page = PAGE_CACHE_SIZE >> osd_sb(osd)->s_blocksize_bits;
68 lprocfs_oh_tally_log2(&s->hist[BRW_R_PAGES+rw], nr_pages);
70 while (nr_pages-- > 0) {
71 if (last_page && (*pages)->index != (last_page->index + 1))
75 for (i = 0; i < blocks_per_page; i++) {
76 if (last_block && *blocks != (*last_block + 1))
78 last_block = blocks++;
82 lprocfs_oh_tally(&s->hist[BRW_R_DISCONT_PAGES+rw], discont_pages);
83 lprocfs_oh_tally(&s->hist[BRW_R_DISCONT_BLOCKS+rw], discont_blocks);
86 #define pct(a, b) (b ? a * 100 / b : 0)
88 static void display_brw_stats(struct seq_file *seq, char *name, char *units,
89 struct obd_histogram *read, struct obd_histogram *write, int scale)
91 unsigned long read_tot, write_tot, r, w, read_cum = 0, write_cum = 0;
94 seq_printf(seq, "\n%26s read | write\n", " ");
95 seq_printf(seq, "%-22s %-5s %% cum %% | %-11s %% cum %%\n",
98 read_tot = lprocfs_oh_sum(read);
99 write_tot = lprocfs_oh_sum(write);
100 for (i = 0; i < OBD_HIST_MAX; i++) {
101 r = read->oh_buckets[i];
102 w = write->oh_buckets[i];
105 if (read_cum == 0 && write_cum == 0)
109 seq_printf(seq, "%u", i);
111 seq_printf(seq, "%u", scale << i);
113 seq_printf(seq, "%uK", scale << (i-10));
115 seq_printf(seq, "%uM", scale << (i-20));
117 seq_printf(seq, ":\t\t%10lu %3lu %3lu | %4lu %3lu %3lu\n",
118 r, pct(r, read_tot), pct(read_cum, read_tot),
119 w, pct(w, write_tot), pct(write_cum, write_tot));
121 if (read_cum == read_tot && write_cum == write_tot)
126 static void brw_stats_show(struct seq_file *seq, struct brw_stats *brw_stats)
130 /* this sampling races with updates */
131 do_gettimeofday(&now);
132 seq_printf(seq, "snapshot_time: %lu.%lu (secs.usecs)\n",
133 now.tv_sec, now.tv_usec);
135 display_brw_stats(seq, "pages per bulk r/w", "rpcs",
136 &brw_stats->hist[BRW_R_PAGES],
137 &brw_stats->hist[BRW_W_PAGES], 1);
139 display_brw_stats(seq, "discontiguous pages", "rpcs",
140 &brw_stats->hist[BRW_R_DISCONT_PAGES],
141 &brw_stats->hist[BRW_W_DISCONT_PAGES], 0);
143 display_brw_stats(seq, "discontiguous blocks", "rpcs",
144 &brw_stats->hist[BRW_R_DISCONT_BLOCKS],
145 &brw_stats->hist[BRW_W_DISCONT_BLOCKS], 0);
147 display_brw_stats(seq, "disk fragmented I/Os", "ios",
148 &brw_stats->hist[BRW_R_DIO_FRAGS],
149 &brw_stats->hist[BRW_W_DIO_FRAGS], 0);
151 display_brw_stats(seq, "disk I/Os in flight", "ios",
152 &brw_stats->hist[BRW_R_RPC_HIST],
153 &brw_stats->hist[BRW_W_RPC_HIST], 0);
155 display_brw_stats(seq, "I/O time (1/1000s)", "ios",
156 &brw_stats->hist[BRW_R_IO_TIME],
157 &brw_stats->hist[BRW_W_IO_TIME],
158 jiffies_to_msecs(1000) / MSEC_PER_SEC);
160 display_brw_stats(seq, "disk I/O size", "ios",
161 &brw_stats->hist[BRW_R_DISK_IOSIZE],
162 &brw_stats->hist[BRW_W_DISK_IOSIZE], 1);
167 static int osd_brw_stats_seq_show(struct seq_file *seq, void *v)
169 struct osd_device *osd = seq->private;
171 brw_stats_show(seq, &osd->od_brw_stats);
176 static ssize_t osd_brw_stats_seq_write(struct file *file, const char *buf,
177 size_t len, loff_t *off)
179 struct seq_file *seq = file->private_data;
180 struct osd_device *osd = seq->private;
183 for (i = 0; i < BRW_LAST; i++)
184 lprocfs_oh_clear(&osd->od_brw_stats.hist[i]);
189 LPROC_SEQ_FOPS(osd_brw_stats);
191 static int osd_stats_init(struct osd_device *osd)
196 for (i = 0; i < BRW_LAST; i++)
197 spin_lock_init(&osd->od_brw_stats.hist[i].oh_lock);
199 osd->od_stats = lprocfs_alloc_stats(LPROC_OSD_LAST, 0);
200 if (osd->od_stats != NULL) {
201 result = lprocfs_register_stats(osd->od_proc_entry, "stats",
206 lprocfs_counter_init(osd->od_stats, LPROC_OSD_GET_PAGE,
207 LPROCFS_CNTR_AVGMINMAX|LPROCFS_CNTR_STDDEV,
209 lprocfs_counter_init(osd->od_stats, LPROC_OSD_NO_PAGE,
210 LPROCFS_CNTR_AVGMINMAX,
211 "get_page_failures", "num");
212 lprocfs_counter_init(osd->od_stats, LPROC_OSD_CACHE_ACCESS,
213 LPROCFS_CNTR_AVGMINMAX,
214 "cache_access", "pages");
215 lprocfs_counter_init(osd->od_stats, LPROC_OSD_CACHE_HIT,
216 LPROCFS_CNTR_AVGMINMAX,
217 "cache_hit", "pages");
218 lprocfs_counter_init(osd->od_stats, LPROC_OSD_CACHE_MISS,
219 LPROCFS_CNTR_AVGMINMAX,
220 "cache_miss", "pages");
221 #if OSD_THANDLE_STATS
222 lprocfs_counter_init(osd->od_stats, LPROC_OSD_THANDLE_STARTING,
223 LPROCFS_CNTR_AVGMINMAX,
224 "thandle starting", "usec");
225 lprocfs_counter_init(osd->od_stats, LPROC_OSD_THANDLE_OPEN,
226 LPROCFS_CNTR_AVGMINMAX,
227 "thandle open", "usec");
228 lprocfs_counter_init(osd->od_stats, LPROC_OSD_THANDLE_CLOSING,
229 LPROCFS_CNTR_AVGMINMAX,
230 "thandle closing", "usec");
232 result = lprocfs_seq_create(osd->od_proc_entry, "brw_stats",
233 0644, &osd_brw_stats_fops, osd);
241 static int ldiskfs_osd_fstype_seq_show(struct seq_file *m, void *data)
243 struct osd_device *osd = osd_dt_dev((struct dt_device *)m->private);
245 LASSERT(osd != NULL);
246 seq_puts(m, "ldiskfs\n");
249 LPROC_SEQ_FOPS_RO(ldiskfs_osd_fstype);
251 static int ldiskfs_osd_mntdev_seq_show(struct seq_file *m, void *data)
253 struct osd_device *osd = osd_dt_dev((struct dt_device *)m->private);
255 LASSERT(osd != NULL);
256 if (unlikely(osd->od_mnt == NULL))
259 seq_printf(m, "%s\n", osd->od_mntdev);
262 LPROC_SEQ_FOPS_RO(ldiskfs_osd_mntdev);
264 static int ldiskfs_osd_cache_seq_show(struct seq_file *m, void *data)
266 struct osd_device *osd = osd_dt_dev((struct dt_device *)m->private);
268 LASSERT(osd != NULL);
269 if (unlikely(osd->od_mnt == NULL))
272 seq_printf(m, "%u\n", osd->od_read_cache);
277 ldiskfs_osd_cache_seq_write(struct file *file, const char *buffer,
278 size_t count, loff_t *off)
280 struct seq_file *m = file->private_data;
281 struct dt_device *dt = m->private;
282 struct osd_device *osd = osd_dt_dev(dt);
285 LASSERT(osd != NULL);
286 if (unlikely(osd->od_mnt == NULL))
289 rc = lprocfs_write_helper(buffer, count, &val);
293 osd->od_read_cache = !!val;
296 LPROC_SEQ_FOPS(ldiskfs_osd_cache);
298 static int ldiskfs_osd_wcache_seq_show(struct seq_file *m, void *data)
300 struct osd_device *osd = osd_dt_dev((struct dt_device *)m->private);
302 LASSERT(osd != NULL);
303 if (unlikely(osd->od_mnt == NULL))
306 seq_printf(m, "%u\n", osd->od_writethrough_cache);
311 ldiskfs_osd_wcache_seq_write(struct file *file, const char *buffer,
312 size_t count, loff_t *off)
314 struct seq_file *m = file->private_data;
315 struct dt_device *dt = m->private;
316 struct osd_device *osd = osd_dt_dev(dt);
319 LASSERT(osd != NULL);
320 if (unlikely(osd->od_mnt == NULL))
323 rc = lprocfs_write_helper(buffer, count, &val);
327 osd->od_writethrough_cache = !!val;
330 LPROC_SEQ_FOPS(ldiskfs_osd_wcache);
333 lprocfs_osd_force_sync_seq_write(struct file *file, const char *buffer,
334 size_t count, loff_t *off)
336 struct seq_file *m = file->private_data;
337 struct dt_device *dt = m->private;
338 struct osd_device *osd = osd_dt_dev(dt);
342 LASSERT(osd != NULL);
343 if (unlikely(osd->od_mnt == NULL))
346 rc = lu_env_init(&env, LCT_LOCAL);
349 rc = dt_sync(&env, dt);
352 return rc == 0 ? count : rc;
354 LPROC_SEQ_FOPS_WO_TYPE(ldiskfs, osd_force_sync);
356 static int ldiskfs_osd_pdo_seq_show(struct seq_file *m, void *data)
358 seq_printf(m, "%s\n", ldiskfs_pdo ? "ON" : "OFF");
363 ldiskfs_osd_pdo_seq_write(struct file *file, const char *buffer,
364 size_t count, loff_t *off)
368 rc = lprocfs_write_helper(buffer, count, &pdo);
376 LPROC_SEQ_FOPS(ldiskfs_osd_pdo);
378 static int ldiskfs_osd_auto_scrub_seq_show(struct seq_file *m, void *data)
380 struct osd_device *dev = osd_dt_dev((struct dt_device *)m->private);
382 LASSERT(dev != NULL);
383 if (unlikely(dev->od_mnt == NULL))
386 seq_printf(m, "%d\n", !dev->od_noscrub);
391 ldiskfs_osd_auto_scrub_seq_write(struct file *file, const char *buffer,
392 size_t count, loff_t *off)
394 struct seq_file *m = file->private_data;
395 struct dt_device *dt = m->private;
396 struct osd_device *dev = osd_dt_dev(dt);
399 LASSERT(dev != NULL);
400 if (unlikely(dev->od_mnt == NULL))
403 rc = lprocfs_write_helper(buffer, count, &val);
407 dev->od_noscrub = !val;
410 LPROC_SEQ_FOPS(ldiskfs_osd_auto_scrub);
412 static int ldiskfs_osd_full_scrub_ratio_seq_show(struct seq_file *m, void *data)
414 struct osd_device *dev = osd_dt_dev((struct dt_device *)m->private);
416 LASSERT(dev != NULL);
417 if (unlikely(dev->od_mnt == NULL))
420 seq_printf(m, LPU64"\n", dev->od_full_scrub_ratio);
425 ldiskfs_osd_full_scrub_ratio_seq_write(struct file *file, const char *buffer,
426 size_t count, loff_t *off)
428 struct seq_file *m = file->private_data;
429 struct dt_device *dt = m->private;
430 struct osd_device *dev = osd_dt_dev(dt);
433 LASSERT(dev != NULL);
434 if (unlikely(dev->od_mnt == NULL))
437 rc = lprocfs_write_helper(buffer, count, &val);
444 dev->od_full_scrub_ratio = val;
447 LPROC_SEQ_FOPS(ldiskfs_osd_full_scrub_ratio);
449 static int ldiskfs_osd_full_scrub_threshold_rate_seq_show(struct seq_file *m,
452 struct osd_device *dev = osd_dt_dev((struct dt_device *)m->private);
454 LASSERT(dev != NULL);
455 if (unlikely(dev->od_mnt == NULL))
458 seq_printf(m, LPU64" (bad OI mappings/minute)\n",
459 dev->od_full_scrub_threshold_rate);
464 ldiskfs_osd_full_scrub_threshold_rate_seq_write(struct file *file,
466 size_t count, loff_t *off)
468 struct seq_file *m = file->private_data;
469 struct dt_device *dt = m->private;
470 struct osd_device *dev = osd_dt_dev(dt);
473 LASSERT(dev != NULL);
474 if (unlikely(dev->od_mnt == NULL))
477 rc = lprocfs_write_helper(buffer, count, &val);
484 dev->od_full_scrub_threshold_rate = val;
487 LPROC_SEQ_FOPS(ldiskfs_osd_full_scrub_threshold_rate);
490 ldiskfs_osd_track_declares_assert_seq_show(struct seq_file *m, void *data)
492 seq_printf(m, "%d\n", ldiskfs_track_declares_assert);
497 ldiskfs_osd_track_declares_assert_seq_write(struct file *file,
499 size_t count, loff_t *off)
501 int track_declares_assert;
504 rc = lprocfs_write_helper(buffer, count, &track_declares_assert);
508 ldiskfs_track_declares_assert = !!track_declares_assert;
512 LPROC_SEQ_FOPS(ldiskfs_osd_track_declares_assert);
514 static int ldiskfs_osd_oi_scrub_seq_show(struct seq_file *m, void *data)
516 struct osd_device *dev = osd_dt_dev((struct dt_device *)m->private);
518 LASSERT(dev != NULL);
519 if (unlikely(dev->od_mnt == NULL))
522 return osd_scrub_dump(m, dev);
524 LPROC_SEQ_FOPS_RO(ldiskfs_osd_oi_scrub);
526 static int ldiskfs_osd_readcache_seq_show(struct seq_file *m, void *data)
528 struct osd_device *osd = osd_dt_dev((struct dt_device *)m->private);
530 LASSERT(osd != NULL);
531 if (unlikely(osd->od_mnt == NULL))
534 seq_printf(m, LPU64"\n", osd->od_readcache_max_filesize);
539 ldiskfs_osd_readcache_seq_write(struct file *file, const char *buffer,
540 size_t count, loff_t *off)
542 struct seq_file *m = file->private_data;
543 struct dt_device *dt = m->private;
544 struct osd_device *osd = osd_dt_dev(dt);
548 LASSERT(osd != NULL);
549 if (unlikely(osd->od_mnt == NULL))
552 rc = lprocfs_write_u64_helper(buffer, count, &val);
556 osd->od_readcache_max_filesize = val > OSD_MAX_CACHE_SIZE ?
557 OSD_MAX_CACHE_SIZE : val;
560 LPROC_SEQ_FOPS(ldiskfs_osd_readcache);
562 #if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(3, 0, 52, 0)
563 static int ldiskfs_osd_index_in_idif_seq_show(struct seq_file *m, void *data)
565 struct osd_device *dev = osd_dt_dev((struct dt_device *)m->private);
567 LASSERT(dev != NULL);
568 if (unlikely(dev->od_mnt == NULL))
571 seq_printf(m, "%d\n", (int)(dev->od_index_in_idif));
576 ldiskfs_osd_index_in_idif_seq_write(struct file *file, const char *buffer,
577 size_t count, loff_t *off)
580 struct seq_file *m = file->private_data;
581 struct dt_device *dt = m->private;
582 struct osd_device *dev = osd_dt_dev(dt);
583 struct lu_target *tgt;
587 LASSERT(dev != NULL);
588 if (unlikely(dev->od_mnt == NULL))
591 rc = lprocfs_write_helper(buffer, count, &val);
595 if (dev->od_index_in_idif) {
599 LCONSOLE_WARN("%s: OST-index in IDIF has been enabled, "
600 "it cannot be reverted back.\n", osd_name(dev));
607 rc = lu_env_init(&env, LCT_DT_THREAD);
611 tgt = dev->od_dt_dev.dd_lu_dev.ld_site->ls_tgt;
612 tgt->lut_lsd.lsd_feature_rocompat |= OBD_ROCOMPAT_IDX_IN_IDIF;
613 rc = tgt_server_data_update(&env, tgt, 1);
618 LCONSOLE_INFO("%s: enable OST-index in IDIF successfully, "
619 "it cannot be reverted back.\n", osd_name(dev));
621 dev->od_index_in_idif = 1;
624 LPROC_SEQ_FOPS(ldiskfs_osd_index_in_idif);
626 int osd_register_proc_index_in_idif(struct osd_device *osd)
628 struct proc_dir_entry *proc;
630 proc = proc_create_data("index_in_idif", 0, osd->od_proc_entry,
631 &ldiskfs_osd_index_in_idif_fops,
640 LPROC_SEQ_FOPS_RO_TYPE(ldiskfs, dt_blksize);
641 LPROC_SEQ_FOPS_RO_TYPE(ldiskfs, dt_kbytestotal);
642 LPROC_SEQ_FOPS_RO_TYPE(ldiskfs, dt_kbytesfree);
643 LPROC_SEQ_FOPS_RO_TYPE(ldiskfs, dt_kbytesavail);
644 LPROC_SEQ_FOPS_RO_TYPE(ldiskfs, dt_filestotal);
645 LPROC_SEQ_FOPS_RO_TYPE(ldiskfs, dt_filesfree);
647 struct lprocfs_vars lprocfs_osd_obd_vars[] = {
648 { .name = "blocksize",
649 .fops = &ldiskfs_dt_blksize_fops },
650 { .name = "kbytestotal",
651 .fops = &ldiskfs_dt_kbytestotal_fops },
652 { .name = "kbytesfree",
653 .fops = &ldiskfs_dt_kbytesfree_fops },
654 { .name = "kbytesavail",
655 .fops = &ldiskfs_dt_kbytesavail_fops },
656 { .name = "filestotal",
657 .fops = &ldiskfs_dt_filestotal_fops },
658 { .name = "filesfree",
659 .fops = &ldiskfs_dt_filesfree_fops },
661 .fops = &ldiskfs_osd_fstype_fops },
663 .fops = &ldiskfs_osd_mntdev_fops },
664 { .name = "force_sync",
665 .fops = &ldiskfs_osd_force_sync_fops },
667 .fops = &ldiskfs_osd_pdo_fops },
668 { .name = "auto_scrub",
669 .fops = &ldiskfs_osd_auto_scrub_fops },
670 { .name = "full_scrub_ratio",
671 .fops = &ldiskfs_osd_full_scrub_ratio_fops },
672 { .name = "full_scrub_threshold_rate",
673 .fops = &ldiskfs_osd_full_scrub_threshold_rate_fops },
674 { .name = "oi_scrub",
675 .fops = &ldiskfs_osd_oi_scrub_fops },
676 { .name = "read_cache_enable",
677 .fops = &ldiskfs_osd_cache_fops },
678 { .name = "writethrough_cache_enable",
679 .fops = &ldiskfs_osd_wcache_fops },
680 { .name = "readcache_max_filesize",
681 .fops = &ldiskfs_osd_readcache_fops },
685 struct lprocfs_vars lprocfs_osd_module_vars[] = {
686 { .name = "track_declares_assert",
687 .fops = &ldiskfs_osd_track_declares_assert_fops },
692 int osd_procfs_init(struct osd_device *osd, const char *name)
694 struct obd_type *type;
698 if (osd->od_proc_entry)
701 /* at the moment there is no linkage between lu_type
702 * and obd_type, so we lookup obd_type this way */
703 type = class_search_type(LUSTRE_OSD_LDISKFS_NAME);
705 LASSERT(name != NULL);
706 LASSERT(type != NULL);
708 /* Find the type procroot and add the proc entry for this device */
709 osd->od_proc_entry = lprocfs_register(name, type->typ_procroot,
710 lprocfs_osd_obd_vars,
712 if (IS_ERR(osd->od_proc_entry)) {
713 rc = PTR_ERR(osd->od_proc_entry);
714 CERROR("Error %d setting up lprocfs for %s\n",
716 osd->od_proc_entry = NULL;
720 rc = osd_stats_init(osd);
725 osd_procfs_fini(osd);
729 int osd_procfs_fini(struct osd_device *osd)
732 lprocfs_free_stats(&osd->od_stats);
734 if (osd->od_proc_entry)
735 lprocfs_remove(&osd->od_proc_entry);