1 /* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*-
2 * vim:expandtab:shiftwidth=8:tabstop=8:
4 * Copyright (C) 2002, 2003 Cluster File Systems, Inc.
6 * This file is part of the Lustre file system, http://www.lustre.org
7 * Lustre is a trademark of Cluster File Systems, Inc.
9 * You may have signed or agreed to another license before downloading
10 * this software. If so, you are bound by the terms and conditions
11 * of that agreement, and the following does not apply to you. See the
12 * LICENSE file included with this distribution for more information.
14 * If you did not agree to a different license, then this copy of Lustre
15 * is open source software; you can redistribute it and/or modify it
16 * under the terms of version 2 of the GNU General Public License as
17 * published by the Free Software Foundation.
19 * In either case, Lustre is distributed in the hope that it will be
20 * useful, but WITHOUT ANY WARRANTY; without even the implied warranty
21 * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
22 * license text for more details.
25 #define DEBUG_SUBSYSTEM S_CLASS
27 #include <linux/version.h>
28 #include <lprocfs_status.h>
30 #include <linux/seq_file.h>
31 #include <linux/version.h>
33 #include "filter_internal.h"
36 static int lprocfs_filter_rd_groups(char *page, char **start, off_t off,
37 int count, int *eof, void *data)
39 struct obd_device *obd = (struct obd_device *)data;
41 return snprintf(page, count, "%u\n", obd->u.filter.fo_group_count);
44 static int lprocfs_filter_rd_tot_dirty(char *page, char **start, off_t off,
45 int count, int *eof, void *data)
47 struct obd_device *obd = (struct obd_device *)data;
51 return snprintf(page, count, LPU64"\n", obd->u.filter.fo_tot_dirty);
54 static int lprocfs_filter_rd_tot_granted(char *page, char **start, off_t off,
55 int count, int *eof, void *data)
57 struct obd_device *obd = (struct obd_device *)data;
61 return snprintf(page, count, LPU64"\n", obd->u.filter.fo_tot_granted);
64 static int lprocfs_filter_rd_tot_pending(char *page, char **start, off_t off,
65 int count, int *eof, void *data)
67 struct obd_device *obd = (struct obd_device *)data;
71 return snprintf(page, count, LPU64"\n", obd->u.filter.fo_tot_pending);
74 static int lprocfs_filter_rd_mntdev(char *page, char **start, off_t off,
75 int count, int *eof, void *data)
77 struct obd_device *obd = (struct obd_device *)data;
80 LASSERT(obd->u.filter.fo_vfsmnt->mnt_devname);
82 return snprintf(page, count, "%s\n",
83 obd->u.filter.fo_vfsmnt->mnt_devname);
86 static int lprocfs_filter_rd_last_id(char *page, char **start, off_t off,
87 int count, int *eof, void *data)
89 struct obd_device *obd = data;
90 struct filter_obd *filter = &obd->u.filter;
91 int retval = 0, rc, i;
96 for (i = FILTER_GROUP_MDS0; i < filter->fo_group_count; i++) {
97 rc = snprintf(page, count, LPU64"\n",filter_last_id(filter, i));
109 int lprocfs_filter_rd_readcache(char *page, char **start, off_t off, int count,
110 int *eof, void *data)
112 struct obd_device *obd = data;
115 rc = snprintf(page, count, LPU64"\n",
116 obd->u.filter.fo_readcache_max_filesize);
120 int lprocfs_filter_wr_readcache(struct file *file, const char *buffer,
121 unsigned long count, void *data)
123 struct obd_device *obd = data;
127 rc = lprocfs_write_u64_helper(buffer, count, &val);
131 obd->u.filter.fo_readcache_max_filesize = val;
136 int lprocfs_filter_rd_fmd_max_num(char *page, char **start, off_t off,
137 int count, int *eof, void *data)
139 struct obd_device *obd = data;
142 rc = snprintf(page, count, "%u\n", obd->u.filter.fo_fmd_max_num);
146 int lprocfs_filter_wr_fmd_max_num(struct file *file, const char *buffer,
147 unsigned long count, void *data)
149 struct obd_device *obd = data;
153 rc = lprocfs_write_helper(buffer, count, &val);
157 if (val > 65536 || val < 1)
160 obd->u.filter.fo_fmd_max_num = val;
164 int lprocfs_filter_rd_fmd_max_age(char *page, char **start, off_t off,
165 int count, int *eof, void *data)
167 struct obd_device *obd = data;
170 rc = snprintf(page, count, "%u\n", obd->u.filter.fo_fmd_max_age / HZ);
174 int lprocfs_filter_wr_fmd_max_age(struct file *file, const char *buffer,
175 unsigned long count, void *data)
177 struct obd_device *obd = data;
181 rc = lprocfs_write_helper(buffer, count, &val);
185 if (val > 65536 || val < 1)
188 obd->u.filter.fo_fmd_max_age = val * HZ;
192 static int lprocfs_filter_rd_capa(char *page, char **start, off_t off,
193 int count, int *eof, void *data)
195 struct obd_device *obd = data;
198 rc = snprintf(page, count, "capability on: %s\n",
199 obd->u.filter.fo_fl_oss_capa ? "oss" : "");
203 static int lprocfs_filter_wr_capa(struct file *file, const char *buffer,
204 unsigned long count, void *data)
206 struct obd_device *obd = data;
209 rc = lprocfs_write_helper(buffer, count, &val);
214 CERROR("invalid capability mode, only 0/1 are accepted.\n"
215 " 1: enable oss fid capability\n"
216 " 0: disable oss fid capability\n");
220 obd->u.filter.fo_fl_oss_capa = val;
221 LCONSOLE_INFO("OSS %s %s fid capability.\n", obd->obd_name,
222 val ? "enabled" : "disabled");
226 static int lprocfs_filter_rd_capa_count(char *page, char **start, off_t off,
227 int count, int *eof, void *data)
229 return snprintf(page, count, "%d %d\n",
230 capa_count[CAPA_SITE_CLIENT],
231 capa_count[CAPA_SITE_SERVER]);
235 int lprocfs_filter_rd_blacklist(char *page, char **start, off_t off, int count,
236 int *eof, void *data)
240 rc = blacklist_display(page, count);
246 int lprocfs_filter_wr_blacklist(struct file *file, const char *buffer,
247 unsigned long count, void *data)
254 if (buffer[0] == '+')
256 else if (buffer[0] == '-')
261 sscanf(buffer + 1, "%u", &uid);
269 static struct lprocfs_vars lprocfs_obd_vars[] = {
270 { "uuid", lprocfs_rd_uuid, 0, 0 },
271 { "blocksize", lprocfs_rd_blksize, 0, 0 },
272 { "kbytestotal", lprocfs_rd_kbytestotal, 0, 0 },
273 { "kbytesfree", lprocfs_rd_kbytesfree, 0, 0 },
274 { "kbytesavail", lprocfs_rd_kbytesavail, 0, 0 },
275 { "filestotal", lprocfs_rd_filestotal, 0, 0 },
276 { "filesfree", lprocfs_rd_filesfree, 0, 0 },
277 { "filegroups", lprocfs_filter_rd_groups, 0, 0 },
278 { "fstype", lprocfs_rd_fstype, 0, 0 },
279 { "mntdev", lprocfs_filter_rd_mntdev, 0, 0 },
280 { "last_id", lprocfs_filter_rd_last_id,0, 0 },
281 { "tot_dirty", lprocfs_filter_rd_tot_dirty, 0, 0 },
282 { "tot_pending", lprocfs_filter_rd_tot_pending, 0, 0 },
283 { "tot_granted", lprocfs_filter_rd_tot_granted, 0, 0 },
284 { "recovery_status", lprocfs_obd_rd_recovery_status, 0, 0 },
285 { "evict_client", 0, lprocfs_wr_evict_client, 0 },
286 { "num_exports", lprocfs_rd_num_exports, 0, 0 },
287 { "readcache_max_filesize",
288 lprocfs_filter_rd_readcache,
289 lprocfs_filter_wr_readcache, 0 },
290 #ifdef HAVE_QUOTA_SUPPORT
291 { "quota_bunit_sz", lprocfs_rd_bunit, lprocfs_wr_bunit, 0},
292 { "quota_btune_sz", lprocfs_rd_btune, lprocfs_wr_btune, 0},
293 { "quota_iunit_sz", lprocfs_rd_iunit, lprocfs_wr_iunit, 0},
294 { "quota_itune_sz", lprocfs_rd_itune, lprocfs_wr_itune, 0},
295 { "quota_type", lprocfs_rd_type, lprocfs_wr_type, 0},
297 { "client_cache_count", lprocfs_filter_rd_fmd_max_num,
298 lprocfs_filter_wr_fmd_max_num, 0 },
299 { "client_cache_seconds", lprocfs_filter_rd_fmd_max_age,
300 lprocfs_filter_wr_fmd_max_age, 0 },
301 { "capa", lprocfs_filter_rd_capa,
302 lprocfs_filter_wr_capa, 0 },
303 { "capa_count", lprocfs_filter_rd_capa_count, 0, 0 },
304 { "blacklist", lprocfs_filter_rd_blacklist,
305 lprocfs_filter_wr_blacklist, 0 },
309 static struct lprocfs_vars lprocfs_module_vars[] = {
310 { "num_refs", lprocfs_rd_numrefs, 0, 0 },
314 void filter_tally(struct obd_export *exp, struct page **pages, int nr_pages,
315 unsigned long *blocks, int blocks_per_page, int wr)
317 struct filter_obd *filter = &exp->exp_obd->u.filter;
318 struct filter_export_data *fed = &exp->exp_filter_data;
319 struct page *last_page = NULL;
320 unsigned long *last_block = NULL;
321 unsigned long discont_pages = 0;
322 unsigned long discont_blocks = 0;
328 lprocfs_oh_tally_log2(&filter->fo_filter_stats.hist[BRW_R_PAGES + wr],
330 lprocfs_oh_tally_log2(&fed->fed_brw_stats.hist[BRW_R_PAGES + wr],
333 while (nr_pages-- > 0) {
334 if (last_page && (*pages)->index != (last_page->index + 1))
338 for (i = 0; i < blocks_per_page; i++) {
339 if (last_block && *blocks != (*last_block + 1))
341 last_block = blocks++;
345 lprocfs_oh_tally(&filter->fo_filter_stats.hist[BRW_R_DISCONT_PAGES +wr],
347 lprocfs_oh_tally(&fed->fed_brw_stats.hist[BRW_R_DISCONT_PAGES + wr],
349 lprocfs_oh_tally(&filter->fo_filter_stats.hist[BRW_R_DISCONT_BLOCKS+wr],
351 lprocfs_oh_tally(&fed->fed_brw_stats.hist[BRW_R_DISCONT_BLOCKS + wr],
355 #define pct(a,b) (b ? a * 100 / b : 0)
357 static void display_brw_stats(struct seq_file *seq, char *name, char *units,
358 struct obd_histogram *read, struct obd_histogram *write, int log2)
360 unsigned long read_tot, write_tot, r, w, read_cum = 0, write_cum = 0;
363 seq_printf(seq, "\n%26s read | write\n", " ");
364 seq_printf(seq, "%-22s %-5s %% cum %% | %-5s %% cum %%\n",
367 read_tot = lprocfs_oh_sum(read);
368 write_tot = lprocfs_oh_sum(write);
369 for (i = 0; i < OBD_HIST_MAX; i++) {
370 r = read->oh_buckets[i];
371 w = write->oh_buckets[i];
374 if (read_cum == 0 && write_cum == 0)
378 seq_printf(seq, "%u", i);
380 seq_printf(seq, "%u", 1<<i);
382 seq_printf(seq, "%uK", 1<<(i-10));
384 seq_printf(seq, "%uM", 1<<(i-20));
386 seq_printf(seq, ":\t\t%10lu %3lu %3lu | %4lu %3lu %3lu\n",
387 r, pct(r, read_tot), pct(read_cum, read_tot),
388 w, pct(w, write_tot), pct(write_cum, write_tot));
390 if (read_cum == read_tot && write_cum == write_tot)
395 static void brw_stats_show(struct seq_file *seq, struct brw_stats *brw_stats)
399 /* this sampling races with updates */
400 do_gettimeofday(&now);
401 seq_printf(seq, "snapshot_time: %lu.%lu (secs.usecs)\n",
402 now.tv_sec, now.tv_usec);
404 display_brw_stats(seq, "pages per bulk r/w", "rpcs",
405 &brw_stats->hist[BRW_R_PAGES],
406 &brw_stats->hist[BRW_W_PAGES], 1);
408 display_brw_stats(seq, "discontiguous pages", "rpcs",
409 &brw_stats->hist[BRW_R_DISCONT_PAGES],
410 &brw_stats->hist[BRW_W_DISCONT_PAGES], 0);
412 display_brw_stats(seq, "discontiguous blocks", "rpcs",
413 &brw_stats->hist[BRW_R_DISCONT_BLOCKS],
414 &brw_stats->hist[BRW_W_DISCONT_BLOCKS], 0);
416 display_brw_stats(seq, "disk fragmented I/Os", "ios",
417 &brw_stats->hist[BRW_R_DIO_FRAGS],
418 &brw_stats->hist[BRW_W_DIO_FRAGS], 0);
420 #if (LINUX_VERSION_CODE > KERNEL_VERSION(2,5,0))
421 display_brw_stats(seq, "disk I/Os in flight", "ios",
422 &brw_stats->hist[BRW_R_RPC_HIST],
423 &brw_stats->hist[BRW_W_RPC_HIST], 0);
427 sprintf(title, "I/O time (1/%ds)", HZ);
428 display_brw_stats(seq, title, "ios",
429 &brw_stats->hist[BRW_R_IO_TIME],
430 &brw_stats->hist[BRW_W_IO_TIME], 1);
433 display_brw_stats(seq, "disk I/O size", "ios",
434 &brw_stats->hist[BRW_R_DISK_IOSIZE],
435 &brw_stats->hist[BRW_W_DISK_IOSIZE], 1);
439 static int filter_brw_stats_seq_show(struct seq_file *seq, void *v)
441 struct obd_device *dev = seq->private;
442 struct filter_obd *filter = &dev->u.filter;
444 brw_stats_show(seq, &filter->fo_filter_stats);
449 static ssize_t filter_brw_stats_seq_write(struct file *file, const char *buf,
450 size_t len, loff_t *off)
452 struct seq_file *seq = file->private_data;
453 struct obd_device *dev = seq->private;
454 struct filter_obd *filter = &dev->u.filter;
457 for (i = 0; i < BRW_LAST; i++)
458 lprocfs_oh_clear(&filter->fo_filter_stats.hist[i]);
463 LPROC_SEQ_FOPS(filter_brw_stats);
465 int lproc_filter_attach_seqstat(struct obd_device *dev)
467 return lprocfs_obd_seq_create(dev, "brw_stats", 0444,
468 &filter_brw_stats_fops, dev);
471 static int filter_per_export_stats_seq_show(struct seq_file *seq, void *v)
473 struct filter_export_data *fed = seq->private;
475 brw_stats_show(seq, &fed->fed_brw_stats);
480 static ssize_t filter_per_export_stats_seq_write(struct file *file,
481 const char *buf, size_t len, loff_t *off)
483 struct seq_file *seq = file->private_data;
484 struct filter_export_data *fed = seq->private;
487 for (i = 0; i < BRW_LAST; i++)
488 lprocfs_oh_clear(&fed->fed_brw_stats.hist[i]);
493 LPROC_SEQ_FOPS(filter_per_export_stats);
495 LPROCFS_INIT_VARS(filter, lprocfs_module_vars, lprocfs_obd_vars)