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)
40 return snprintf(page, count, "%u\n", FILTER_GROUPS);
43 static int lprocfs_filter_rd_tot_dirty(char *page, char **start, off_t off,
44 int count, int *eof, void *data)
46 struct obd_device *obd = (struct obd_device *)data;
50 return snprintf(page, count, LPU64"\n", obd->u.filter.fo_tot_dirty);
53 static int lprocfs_filter_rd_tot_granted(char *page, char **start, off_t off,
54 int count, int *eof, void *data)
56 struct obd_device *obd = (struct obd_device *)data;
60 return snprintf(page, count, LPU64"\n", obd->u.filter.fo_tot_granted);
63 static int lprocfs_filter_rd_tot_pending(char *page, char **start, off_t off,
64 int count, int *eof, void *data)
66 struct obd_device *obd = (struct obd_device *)data;
70 return snprintf(page, count, LPU64"\n", obd->u.filter.fo_tot_pending);
73 static int lprocfs_filter_rd_mntdev(char *page, char **start, off_t off,
74 int count, int *eof, void *data)
76 struct obd_device *obd = (struct obd_device *)data;
79 LASSERT(obd->u.filter.fo_vfsmnt->mnt_devname);
81 return snprintf(page, count, "%s\n",
82 obd->u.filter.fo_vfsmnt->mnt_devname);
85 static int lprocfs_filter_rd_last_id(char *page, char **start, off_t off,
86 int count, int *eof, void *data)
88 struct obd_device *obd = data;
93 return snprintf(page, count, LPU64"\n",
94 filter_last_id(&obd->u.filter, 0));
97 int lprocfs_filter_rd_readcache(char *page, char **start, off_t off, int count,
100 struct obd_device *obd = data;
103 rc = snprintf(page, count, LPU64"\n",
104 obd->u.filter.fo_readcache_max_filesize);
108 int lprocfs_filter_wr_readcache(struct file *file, const char *buffer,
109 unsigned long count, void *data)
111 struct obd_device *obd = data;
115 rc = lprocfs_write_u64_helper(buffer, count, &val);
119 obd->u.filter.fo_readcache_max_filesize = val;
123 int lprocfs_filter_rd_fmd_max_num(char *page, char **start, off_t off,
124 int count, int *eof, void *data)
126 struct obd_device *obd = data;
129 rc = snprintf(page, count, "%u\n", obd->u.filter.fo_fmd_max_num);
133 int lprocfs_filter_wr_fmd_max_num(struct file *file, const char *buffer,
134 unsigned long count, void *data)
136 struct obd_device *obd = data;
140 rc = lprocfs_write_helper(buffer, count, &val);
144 if (val > 65536 || val < 1)
147 obd->u.filter.fo_fmd_max_num = val;
151 int lprocfs_filter_rd_fmd_max_age(char *page, char **start, off_t off,
152 int count, int *eof, void *data)
154 struct obd_device *obd = data;
157 rc = snprintf(page, count, "%u\n", obd->u.filter.fo_fmd_max_age / HZ);
161 int lprocfs_filter_wr_fmd_max_age(struct file *file, const char *buffer,
162 unsigned long count, void *data)
164 struct obd_device *obd = data;
168 rc = lprocfs_write_helper(buffer, count, &val);
172 if (val > 65536 || val < 1)
175 obd->u.filter.fo_fmd_max_age = val * HZ;
179 static struct lprocfs_vars lprocfs_obd_vars[] = {
180 { "uuid", lprocfs_rd_uuid, 0, 0 },
181 { "blocksize", lprocfs_rd_blksize, 0, 0 },
182 { "kbytestotal", lprocfs_rd_kbytestotal, 0, 0 },
183 { "kbytesfree", lprocfs_rd_kbytesfree, 0, 0 },
184 { "kbytesavail", lprocfs_rd_kbytesavail, 0, 0 },
185 { "filestotal", lprocfs_rd_filestotal, 0, 0 },
186 { "filesfree", lprocfs_rd_filesfree, 0, 0 },
187 { "filegroups", lprocfs_filter_rd_groups, 0, 0 },
188 { "fstype", lprocfs_rd_fstype, 0, 0 },
189 { "mntdev", lprocfs_filter_rd_mntdev, 0, 0 },
190 { "last_id", lprocfs_filter_rd_last_id,0, 0 },
191 { "tot_dirty", lprocfs_filter_rd_tot_dirty, 0, 0 },
192 { "tot_pending", lprocfs_filter_rd_tot_pending, 0, 0 },
193 { "tot_granted", lprocfs_filter_rd_tot_granted, 0, 0 },
194 { "recovery_status", lprocfs_obd_rd_recovery_status, 0, 0 },
195 { "evict_client", 0, lprocfs_wr_evict_client, 0 },
196 { "num_exports", lprocfs_rd_num_exports, 0, 0 },
197 { "readcache_max_filesize",
198 lprocfs_filter_rd_readcache,
199 lprocfs_filter_wr_readcache, 0 },
200 #ifdef HAVE_QUOTA_SUPPORT
201 { "quota_bunit_sz", lprocfs_rd_bunit, lprocfs_wr_bunit, 0},
202 { "quota_btune_sz", lprocfs_rd_btune, lprocfs_wr_btune, 0},
203 { "quota_iunit_sz", lprocfs_rd_iunit, lprocfs_wr_iunit, 0},
204 { "quota_itune_sz", lprocfs_rd_itune, lprocfs_wr_itune, 0},
205 { "quota_type", lprocfs_rd_type, lprocfs_wr_type, 0},
207 { "client_cache_count", lprocfs_filter_rd_fmd_max_num,
208 lprocfs_filter_wr_fmd_max_num, 0 },
209 { "client_cache_seconds", lprocfs_filter_rd_fmd_max_age,
210 lprocfs_filter_wr_fmd_max_age, 0 },
214 static struct lprocfs_vars lprocfs_module_vars[] = {
215 { "num_refs", lprocfs_rd_numrefs, 0, 0 },
219 void filter_tally_write(struct obd_export *exp, struct page **pages,
220 int nr_pages, unsigned long *blocks,int blocks_per_page)
222 struct filter_obd *filter = &exp->exp_obd->u.filter;
223 struct filter_export_data *fed = &exp->exp_filter_data;
224 struct page *last_page = NULL;
225 unsigned long *last_block = NULL;
226 unsigned long discont_pages = 0;
227 unsigned long discont_blocks = 0;
233 lprocfs_oh_tally_log2(&filter->fo_filter_stats.hist[BRW_W_PAGES],
235 lprocfs_oh_tally_log2(&fed->fed_brw_stats.hist[BRW_W_PAGES],
238 while (nr_pages-- > 0) {
239 if (last_page && (*pages)->index != (last_page->index + 1))
243 for (i = 0; i < blocks_per_page; i++) {
244 if (last_block && *blocks != (*last_block + 1))
246 last_block = blocks++;
250 lprocfs_oh_tally(&filter->fo_filter_stats.hist[BRW_W_DISCONT_PAGES],
252 lprocfs_oh_tally(&filter->fo_filter_stats.hist[BRW_W_DISCONT_BLOCKS],
255 lprocfs_oh_tally(&fed->fed_brw_stats.hist[BRW_W_DISCONT_PAGES],
257 lprocfs_oh_tally(&fed->fed_brw_stats.hist[BRW_W_DISCONT_BLOCKS],
261 void filter_tally_read(struct obd_export *exp, struct page **pages,
262 int nr_pages, unsigned long *blocks, int blocks_per_page)
264 struct filter_obd *filter = &exp->exp_obd->u.filter;
265 struct page *last_page = NULL;
266 unsigned long *last_block = NULL;
267 unsigned long discont_pages = 0;
268 unsigned long discont_blocks = 0;
274 lprocfs_oh_tally_log2(&filter->fo_filter_stats.hist[BRW_R_PAGES], nr_pages);
276 while (nr_pages-- > 0) {
277 if (last_page && (*pages)->index != (last_page->index + 1))
281 for (i = 0; i < blocks_per_page; i++) {
282 if (last_block && *blocks != (*last_block + 1))
284 last_block = blocks++;
288 lprocfs_oh_tally_log2(&filter->fo_filter_stats.hist[BRW_R_PAGES], nr_pages);
289 lprocfs_oh_tally(&filter->fo_filter_stats.hist[BRW_R_DISCONT_PAGES], discont_pages);
290 lprocfs_oh_tally(&filter->fo_filter_stats.hist[BRW_R_DISCONT_BLOCKS], discont_blocks);
292 lprocfs_oh_tally_log2(&exp->exp_filter_data.fed_brw_stats.hist[BRW_R_PAGES],
294 lprocfs_oh_tally(&exp->exp_filter_data.fed_brw_stats.hist[BRW_R_DISCONT_PAGES],
296 lprocfs_oh_tally(&exp->exp_filter_data.fed_brw_stats.hist[BRW_R_DISCONT_BLOCKS],
300 #define pct(a,b) (b ? a * 100 / b : 0)
302 static void display_brw_stats(struct seq_file *seq, struct obd_histogram *read,
303 struct obd_histogram *write)
305 unsigned long read_tot = 0, write_tot = 0, read_cum, write_cum;
308 read_tot = lprocfs_oh_sum(read);
309 write_tot = lprocfs_oh_sum(write);
313 for (i = 0; i < OBD_HIST_MAX; i++) {
314 unsigned long r = read->oh_buckets[i];
315 unsigned long w = write->oh_buckets[i];
318 seq_printf(seq, "%u:\t\t%10lu %3lu %3lu | %10lu %3lu %3lu\n",
319 1 << i, r, pct(r, read_tot),
320 pct(read_cum, read_tot), w,
322 pct(write_cum, write_tot));
323 if (read_cum == read_tot && write_cum == write_tot)
328 static void brw_stats_show(struct seq_file *seq, struct brw_stats *brw_stats)
331 #if (LINUX_VERSION_CODE > KERNEL_VERSION(2,5,0))
332 unsigned long read_tot = 0, write_tot = 0, read_cum, write_cum;
336 do_gettimeofday(&now);
338 /* this sampling races with updates */
340 seq_printf(seq, "snapshot_time: %lu.%lu (secs.usecs)\n",
341 now.tv_sec, now.tv_usec);
343 seq_printf(seq, "\n\t\t\tread\t\t\twrite\n");
344 seq_printf(seq, "pages per brw brws %% cum %% |");
345 seq_printf(seq, " rpcs %% cum %%\n");
347 display_brw_stats(seq, &brw_stats->hist[BRW_R_PAGES], &brw_stats->hist[BRW_W_PAGES]);
349 seq_printf(seq, "\n\t\t\tread\t\t\twrite\n");
350 seq_printf(seq, "discont pages rpcs %% cum %% |");
351 seq_printf(seq, " rpcs %% cum %%\n");
353 display_brw_stats(seq, &brw_stats->hist[BRW_R_DISCONT_PAGES],
354 &brw_stats->hist[BRW_W_DISCONT_PAGES]);
356 seq_printf(seq, "\n\t\t\tread\t\t\twrite\n");
357 seq_printf(seq, "discont blocks rpcs %% cum %% |");
358 seq_printf(seq, " rpcs %% cum %%\n");
360 display_brw_stats(seq, &brw_stats->hist[BRW_R_DISCONT_BLOCKS],
361 &brw_stats->hist[BRW_W_DISCONT_BLOCKS]);
363 seq_printf(seq, "\n\t\t\tread\t\t\twrite\n");
364 seq_printf(seq, "dio frags rpcs %% cum %% |");
365 seq_printf(seq, " rpcs %% cum %%\n");
367 display_brw_stats(seq, &brw_stats->hist[BRW_R_DIO_FRAGS],
368 &brw_stats->hist[BRW_W_DIO_FRAGS]);
370 #if (LINUX_VERSION_CODE > KERNEL_VERSION(2,5,0))
371 seq_printf(seq, "\n\t\t\tread\t\t\twrite\n");
372 seq_printf(seq, "disk ios in flight ios %% cum %% |");
373 seq_printf(seq, " rpcs %% cum %%\n");
375 display_brw_stats(seq, &brw_stats->hist[BRW_R_RPC_HIST],
376 &brw_stats->hist[BRW_W_RPC_HIST]);
378 seq_printf(seq, "\n\t\t\tread\t\t\twrite\n");
379 seq_printf(seq, "io time (1/%ds) rpcs %% cum %% |", HZ);
380 seq_printf(seq, " rpcs %% cum %%\n");
382 display_brw_stats(seq, &brw_stats->hist[BRW_R_IO_TIME],
383 &brw_stats->hist[BRW_W_IO_TIME]);
385 seq_printf(seq, "\n\t\t\tread\t\t\twrite\n");
386 seq_printf(seq, "disk I/O size count %% cum %% |");
387 seq_printf(seq, " count %% cum %%\n");
389 read_tot = lprocfs_oh_sum(&brw_stats->hist[BRW_R_DISK_IOSIZE]);
390 write_tot = lprocfs_oh_sum(&brw_stats->hist[BRW_W_DISK_IOSIZE]);
394 for (i = 0; i < OBD_HIST_MAX; i++) {
395 unsigned long r = brw_stats->hist[BRW_R_DISK_IOSIZE].oh_buckets[i];
396 unsigned long w = brw_stats->hist[BRW_W_DISK_IOSIZE].oh_buckets[i];
400 if (read_cum == 0 && write_cum == 0)
404 seq_printf(seq, "%u", 1<<i);
406 seq_printf(seq, "%uK", 1<<(i-10));
408 seq_printf(seq, "%uM", 1<<(i-20));
410 seq_printf(seq, ":\t\t%10lu %3lu %3lu | %10lu %3lu %3lu\n",
411 r, pct(r, read_tot), pct(read_cum, read_tot),
412 w, pct(w, write_tot), pct(write_cum, write_tot));
413 if (read_cum == read_tot && write_cum == write_tot)
419 static int filter_brw_stats_seq_show(struct seq_file *seq, void *v)
421 struct obd_device *dev = seq->private;
422 struct filter_obd *filter = &dev->u.filter;
424 brw_stats_show(seq, &filter->fo_filter_stats);
429 static ssize_t filter_brw_stats_seq_write(struct file *file, const char *buf,
430 size_t len, loff_t *off)
432 struct seq_file *seq = file->private_data;
433 struct obd_device *dev = seq->private;
434 struct filter_obd *filter = &dev->u.filter;
437 for (i = 0; i < BRW_LAST; i++)
438 lprocfs_oh_clear(&filter->fo_filter_stats.hist[i]);
443 LPROC_SEQ_FOPS(filter_brw_stats);
445 int lproc_filter_attach_seqstat(struct obd_device *dev)
447 return lprocfs_obd_seq_create(dev, "brw_stats", 0444,
448 &filter_brw_stats_fops, dev);
451 static int filter_per_export_stats_seq_show(struct seq_file *seq, void *v)
453 struct filter_export_data *fed = seq->private;
455 brw_stats_show(seq, &fed->fed_brw_stats);
460 static ssize_t filter_per_export_stats_seq_write(struct file *file,
461 const char *buf, size_t len, loff_t *off)
463 struct seq_file *seq = file->private_data;
464 struct filter_export_data *fed = seq->private;
467 for (i = 0; i < BRW_LAST; i++)
468 lprocfs_oh_clear(&fed->fed_brw_stats.hist[i]);
473 LPROC_SEQ_FOPS(filter_per_export_stats);
475 LPROCFS_INIT_VARS(filter, lprocfs_module_vars, lprocfs_obd_vars)