1 /* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*-
2 * vim:expandtab:shiftwidth=8:tabstop=8:
6 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License version 2 only,
10 * as published by the Free Software Foundation.
12 * This program is distributed in the hope that it will be useful, but
13 * WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * General Public License version 2 for more details (a copy is included
16 * in the LICENSE file that accompanied this code).
18 * You should have received a copy of the GNU General Public License
19 * version 2 along with this program; If not, see
20 * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
22 * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
23 * CA 95054 USA or visit www.sun.com if you need additional information or
29 * Copyright (c) 2002, 2010, Oracle and/or its affiliates. All rights reserved.
30 * Use is subject to license terms.
33 * This file is part of Lustre, http://www.lustre.org/
34 * Lustre is a trademark of Sun Microsystems, Inc.
36 #define DEBUG_SUBSYSTEM S_LLITE
38 #include <linux/version.h>
39 #include <lustre_lite.h>
40 #include <lprocfs_status.h>
41 #include <linux/seq_file.h>
42 #include <obd_support.h>
44 #include "llite_internal.h"
46 struct proc_dir_entry *proc_lustre_fs_root;
49 /* /proc/lustre/llite mount point registration */
50 extern struct file_operations vvp_dump_pgcache_file_ops;
51 struct file_operations ll_rw_extents_stats_fops;
52 struct file_operations ll_rw_extents_stats_pp_fops;
53 struct file_operations ll_rw_offset_stats_fops;
55 static int ll_rd_blksize(char *page, char **start, off_t off, int count,
58 struct super_block *sb = (struct super_block *)data;
59 struct obd_statfs osfs;
63 rc = ll_statfs_internal(sb, &osfs,
64 cfs_time_shift_64(-OBD_STATFS_CACHE_SECONDS),
68 rc = snprintf(page, count, "%u\n", osfs.os_bsize);
74 static int ll_rd_kbytestotal(char *page, char **start, off_t off, int count,
77 struct super_block *sb = (struct super_block *)data;
78 struct obd_statfs osfs;
82 rc = ll_statfs_internal(sb, &osfs,
83 cfs_time_shift_64(-OBD_STATFS_CACHE_SECONDS),
86 __u32 blk_size = osfs.os_bsize >> 10;
87 __u64 result = osfs.os_blocks;
89 while (blk_size >>= 1)
93 rc = snprintf(page, count, LPU64"\n", result);
99 static int ll_rd_kbytesfree(char *page, char **start, off_t off, int count,
100 int *eof, void *data)
102 struct super_block *sb = (struct super_block *)data;
103 struct obd_statfs osfs;
107 rc = ll_statfs_internal(sb, &osfs,
108 cfs_time_shift_64(-OBD_STATFS_CACHE_SECONDS),
111 __u32 blk_size = osfs.os_bsize >> 10;
112 __u64 result = osfs.os_bfree;
114 while (blk_size >>= 1)
118 rc = snprintf(page, count, LPU64"\n", result);
123 static int ll_rd_kbytesavail(char *page, char **start, off_t off, int count,
124 int *eof, void *data)
126 struct super_block *sb = (struct super_block *)data;
127 struct obd_statfs osfs;
131 rc = ll_statfs_internal(sb, &osfs,
132 cfs_time_shift_64(-OBD_STATFS_CACHE_SECONDS),
135 __u32 blk_size = osfs.os_bsize >> 10;
136 __u64 result = osfs.os_bavail;
138 while (blk_size >>= 1)
142 rc = snprintf(page, count, LPU64"\n", result);
147 static int ll_rd_filestotal(char *page, char **start, off_t off, int count,
148 int *eof, void *data)
150 struct super_block *sb = (struct super_block *)data;
151 struct obd_statfs osfs;
155 rc = ll_statfs_internal(sb, &osfs,
156 cfs_time_shift_64(-OBD_STATFS_CACHE_SECONDS),
160 rc = snprintf(page, count, LPU64"\n", osfs.os_files);
165 static int ll_rd_filesfree(char *page, char **start, off_t off, int count,
166 int *eof, void *data)
168 struct super_block *sb = (struct super_block *)data;
169 struct obd_statfs osfs;
173 rc = ll_statfs_internal(sb, &osfs,
174 cfs_time_shift_64(-OBD_STATFS_CACHE_SECONDS),
178 rc = snprintf(page, count, LPU64"\n", osfs.os_ffree);
184 static int ll_rd_client_type(char *page, char **start, off_t off, int count,
185 int *eof, void *data)
187 struct ll_sb_info *sbi = ll_s2sbi((struct super_block *)data);
190 LASSERT(sbi != NULL);
193 if (sbi->ll_flags & LL_SBI_RMT_CLIENT)
194 rc = snprintf(page, count, "remote client\n");
196 rc = snprintf(page, count, "local client\n");
201 static int ll_rd_fstype(char *page, char **start, off_t off, int count,
202 int *eof, void *data)
204 struct super_block *sb = (struct super_block*)data;
208 return snprintf(page, count, "%s\n", sb->s_type->name);
211 static int ll_rd_sb_uuid(char *page, char **start, off_t off, int count,
212 int *eof, void *data)
214 struct super_block *sb = (struct super_block *)data;
218 return snprintf(page, count, "%s\n", ll_s2sbi(sb)->ll_sb_uuid.uuid);
221 static int ll_rd_site_stats(char *page, char **start, off_t off,
222 int count, int *eof, void *data)
224 struct super_block *sb = data;
227 * See description of statistical counters in struct cl_site, and
230 return cl_site_stats_print(lu2cl_site(ll_s2sbi(sb)->ll_site),
234 static int ll_rd_max_readahead_mb(char *page, char **start, off_t off,
235 int count, int *eof, void *data)
237 struct super_block *sb = data;
238 struct ll_sb_info *sbi = ll_s2sbi(sb);
242 cfs_spin_lock(&sbi->ll_lock);
243 pages_number = sbi->ll_ra_info.ra_max_pages;
244 cfs_spin_unlock(&sbi->ll_lock);
246 mult = 1 << (20 - PAGE_CACHE_SHIFT);
247 return lprocfs_read_frac_helper(page, count, pages_number, mult);
250 static int ll_wr_max_readahead_mb(struct file *file, const char *buffer,
251 unsigned long count, void *data)
253 struct super_block *sb = data;
254 struct ll_sb_info *sbi = ll_s2sbi(sb);
255 int mult, rc, pages_number;
257 mult = 1 << (20 - CFS_PAGE_SHIFT);
258 rc = lprocfs_write_frac_helper(buffer, count, &pages_number, mult);
262 if (pages_number < 0 || pages_number > cfs_num_physpages / 2) {
263 CERROR("can't set file readahead more than %lu MB\n",
264 cfs_num_physpages >> (20 - CFS_PAGE_SHIFT + 1)); /*1/2 of RAM*/
268 cfs_spin_lock(&sbi->ll_lock);
269 sbi->ll_ra_info.ra_max_pages = pages_number;
270 cfs_spin_unlock(&sbi->ll_lock);
275 static int ll_rd_max_readahead_per_file_mb(char *page, char **start, off_t off,
276 int count, int *eof, void *data)
278 struct super_block *sb = data;
279 struct ll_sb_info *sbi = ll_s2sbi(sb);
283 cfs_spin_lock(&sbi->ll_lock);
284 pages_number = sbi->ll_ra_info.ra_max_pages_per_file;
285 cfs_spin_unlock(&sbi->ll_lock);
287 mult = 1 << (20 - CFS_PAGE_SHIFT);
288 return lprocfs_read_frac_helper(page, count, pages_number, mult);
291 static int ll_wr_max_readahead_per_file_mb(struct file *file, const char *buffer,
292 unsigned long count, void *data)
294 struct super_block *sb = data;
295 struct ll_sb_info *sbi = ll_s2sbi(sb);
296 int mult, rc, pages_number;
298 mult = 1 << (20 - CFS_PAGE_SHIFT);
299 rc = lprocfs_write_frac_helper(buffer, count, &pages_number, mult);
303 if (pages_number < 0 ||
304 pages_number > sbi->ll_ra_info.ra_max_pages) {
305 CERROR("can't set file readahead more than"
306 "max_read_ahead_mb %lu MB\n",
307 sbi->ll_ra_info.ra_max_pages);
311 cfs_spin_lock(&sbi->ll_lock);
312 sbi->ll_ra_info.ra_max_pages_per_file = pages_number;
313 cfs_spin_unlock(&sbi->ll_lock);
318 static int ll_rd_max_read_ahead_whole_mb(char *page, char **start, off_t off,
319 int count, int *eof, void *data)
321 struct super_block *sb = data;
322 struct ll_sb_info *sbi = ll_s2sbi(sb);
326 cfs_spin_lock(&sbi->ll_lock);
327 pages_number = sbi->ll_ra_info.ra_max_read_ahead_whole_pages;
328 cfs_spin_unlock(&sbi->ll_lock);
330 mult = 1 << (20 - CFS_PAGE_SHIFT);
331 return lprocfs_read_frac_helper(page, count, pages_number, mult);
334 static int ll_wr_max_read_ahead_whole_mb(struct file *file, const char *buffer,
335 unsigned long count, void *data)
337 struct super_block *sb = data;
338 struct ll_sb_info *sbi = ll_s2sbi(sb);
339 int mult, rc, pages_number;
341 mult = 1 << (20 - CFS_PAGE_SHIFT);
342 rc = lprocfs_write_frac_helper(buffer, count, &pages_number, mult);
346 /* Cap this at the current max readahead window size, the readahead
347 * algorithm does this anyway so it's pointless to set it larger. */
348 if (pages_number < 0 ||
349 pages_number > sbi->ll_ra_info.ra_max_pages_per_file) {
350 CERROR("can't set max_read_ahead_whole_mb more than "
351 "max_read_ahead_per_file_mb: %lu\n",
352 sbi->ll_ra_info.ra_max_pages_per_file >> (20 - CFS_PAGE_SHIFT));
356 cfs_spin_lock(&sbi->ll_lock);
357 sbi->ll_ra_info.ra_max_read_ahead_whole_pages = pages_number;
358 cfs_spin_unlock(&sbi->ll_lock);
363 static int ll_rd_max_cached_mb(char *page, char **start, off_t off,
364 int count, int *eof, void *data)
366 struct super_block *sb = data;
367 struct ll_sb_info *sbi = ll_s2sbi(sb);
371 cfs_spin_lock(&sbi->ll_lock);
372 pages_number = sbi->ll_async_page_max;
373 cfs_spin_unlock(&sbi->ll_lock);
375 mult = 1 << (20 - CFS_PAGE_SHIFT);
376 return lprocfs_read_frac_helper(page, count, pages_number, mult);;
379 static int ll_wr_max_cached_mb(struct file *file, const char *buffer,
380 unsigned long count, void *data)
382 struct super_block *sb = data;
383 struct ll_sb_info *sbi = ll_s2sbi(sb);
384 int mult, rc, pages_number;
386 mult = 1 << (20 - CFS_PAGE_SHIFT);
387 rc = lprocfs_write_frac_helper(buffer, count, &pages_number, mult);
391 if (pages_number < 0 || pages_number > cfs_num_physpages) {
392 CERROR("can't set max cache more than %lu MB\n",
393 cfs_num_physpages >> (20 - CFS_PAGE_SHIFT));
397 cfs_spin_lock(&sbi->ll_lock);
398 sbi->ll_async_page_max = pages_number ;
399 cfs_spin_unlock(&sbi->ll_lock);
402 /* Not set up yet, don't call llap_shrink_cache */
408 static int ll_rd_checksum(char *page, char **start, off_t off,
409 int count, int *eof, void *data)
411 struct super_block *sb = data;
412 struct ll_sb_info *sbi = ll_s2sbi(sb);
414 return snprintf(page, count, "%u\n",
415 (sbi->ll_flags & LL_SBI_CHECKSUM) ? 1 : 0);
418 static int ll_wr_checksum(struct file *file, const char *buffer,
419 unsigned long count, void *data)
421 struct super_block *sb = data;
422 struct ll_sb_info *sbi = ll_s2sbi(sb);
429 rc = lprocfs_write_helper(buffer, count, &val);
433 sbi->ll_flags |= LL_SBI_CHECKSUM;
435 sbi->ll_flags &= ~LL_SBI_CHECKSUM;
437 rc = obd_set_info_async(sbi->ll_dt_exp, sizeof(KEY_CHECKSUM),
438 KEY_CHECKSUM, sizeof(val), &val, NULL);
440 CWARN("Failed to set OSC checksum flags: %d\n", rc);
445 static int ll_rd_max_rw_chunk(char *page, char **start, off_t off,
446 int count, int *eof, void *data)
448 struct super_block *sb = data;
450 return snprintf(page, count, "%lu\n", ll_s2sbi(sb)->ll_max_rw_chunk);
453 static int ll_wr_max_rw_chunk(struct file *file, const char *buffer,
454 unsigned long count, void *data)
456 struct super_block *sb = data;
459 rc = lprocfs_write_helper(buffer, count, &val);
462 ll_s2sbi(sb)->ll_max_rw_chunk = val;
466 static int ll_rd_track_id(char *page, int count, void *data,
467 enum stats_track_type type)
469 struct super_block *sb = data;
471 if (ll_s2sbi(sb)->ll_stats_track_type == type) {
472 return snprintf(page, count, "%d\n",
473 ll_s2sbi(sb)->ll_stats_track_id);
475 } else if (ll_s2sbi(sb)->ll_stats_track_type == STATS_TRACK_ALL) {
476 return snprintf(page, count, "0 (all)\n");
478 return snprintf(page, count, "untracked\n");
482 static int ll_wr_track_id(const char *buffer, unsigned long count, void *data,
483 enum stats_track_type type)
485 struct super_block *sb = data;
488 rc = lprocfs_write_helper(buffer, count, &pid);
491 ll_s2sbi(sb)->ll_stats_track_id = pid;
493 ll_s2sbi(sb)->ll_stats_track_type = STATS_TRACK_ALL;
495 ll_s2sbi(sb)->ll_stats_track_type = type;
496 lprocfs_clear_stats(ll_s2sbi(sb)->ll_stats);
500 static int ll_rd_track_pid(char *page, char **start, off_t off,
501 int count, int *eof, void *data)
503 return (ll_rd_track_id(page, count, data, STATS_TRACK_PID));
506 static int ll_wr_track_pid(struct file *file, const char *buffer,
507 unsigned long count, void *data)
509 return (ll_wr_track_id(buffer, count, data, STATS_TRACK_PID));
512 static int ll_rd_track_ppid(char *page, char **start, off_t off,
513 int count, int *eof, void *data)
515 return (ll_rd_track_id(page, count, data, STATS_TRACK_PPID));
518 static int ll_wr_track_ppid(struct file *file, const char *buffer,
519 unsigned long count, void *data)
521 return (ll_wr_track_id(buffer, count, data, STATS_TRACK_PPID));
524 static int ll_rd_track_gid(char *page, char **start, off_t off,
525 int count, int *eof, void *data)
527 return (ll_rd_track_id(page, count, data, STATS_TRACK_GID));
530 static int ll_wr_track_gid(struct file *file, const char *buffer,
531 unsigned long count, void *data)
533 return (ll_wr_track_id(buffer, count, data, STATS_TRACK_GID));
536 static int ll_rd_statahead_max(char *page, char **start, off_t off,
537 int count, int *eof, void *data)
539 struct super_block *sb = data;
540 struct ll_sb_info *sbi = ll_s2sbi(sb);
542 return snprintf(page, count, "%u\n", sbi->ll_sa_max);
545 static int ll_wr_statahead_max(struct file *file, const char *buffer,
546 unsigned long count, void *data)
548 struct super_block *sb = data;
549 struct ll_sb_info *sbi = ll_s2sbi(sb);
552 rc = lprocfs_write_helper(buffer, count, &val);
556 if (val >= 0 && val <= LL_SA_RPC_MAX)
557 sbi->ll_sa_max = val;
559 CERROR("Bad statahead_max value %d. Valid values are in the "
560 "range [0, %d]\n", val, LL_SA_RPC_MAX);
565 static int ll_rd_statahead_stats(char *page, char **start, off_t off,
566 int count, int *eof, void *data)
568 struct super_block *sb = data;
569 struct ll_sb_info *sbi = ll_s2sbi(sb);
571 return snprintf(page, count,
572 "statahead total: %u\n"
573 "statahead wrong: %u\n",
574 atomic_read(&sbi->ll_sa_total),
575 atomic_read(&sbi->ll_sa_wrong));
578 static int ll_rd_lazystatfs(char *page, char **start, off_t off,
579 int count, int *eof, void *data)
581 struct super_block *sb = data;
582 struct ll_sb_info *sbi = ll_s2sbi(sb);
584 return snprintf(page, count, "%u\n",
585 (sbi->ll_flags & LL_SBI_LAZYSTATFS) ? 1 : 0);
588 static int ll_wr_lazystatfs(struct file *file, const char *buffer,
589 unsigned long count, void *data)
591 struct super_block *sb = data;
592 struct ll_sb_info *sbi = ll_s2sbi(sb);
595 rc = lprocfs_write_helper(buffer, count, &val);
600 sbi->ll_flags |= LL_SBI_LAZYSTATFS;
602 sbi->ll_flags &= ~LL_SBI_LAZYSTATFS;
607 static struct lprocfs_vars lprocfs_llite_obd_vars[] = {
608 { "uuid", ll_rd_sb_uuid, 0, 0 },
609 //{ "mntpt_path", ll_rd_path, 0, 0 },
610 { "fstype", ll_rd_fstype, 0, 0 },
611 { "site", ll_rd_site_stats, 0, 0 },
612 { "blocksize", ll_rd_blksize, 0, 0 },
613 { "kbytestotal", ll_rd_kbytestotal, 0, 0 },
614 { "kbytesfree", ll_rd_kbytesfree, 0, 0 },
615 { "kbytesavail", ll_rd_kbytesavail, 0, 0 },
616 { "filestotal", ll_rd_filestotal, 0, 0 },
617 { "filesfree", ll_rd_filesfree, 0, 0 },
618 { "client_type", ll_rd_client_type, 0, 0 },
619 //{ "filegroups", lprocfs_rd_filegroups, 0, 0 },
620 { "max_read_ahead_mb", ll_rd_max_readahead_mb,
621 ll_wr_max_readahead_mb, 0 },
622 { "max_read_ahead_per_file_mb", ll_rd_max_readahead_per_file_mb,
623 ll_wr_max_readahead_per_file_mb, 0 },
624 { "max_read_ahead_whole_mb", ll_rd_max_read_ahead_whole_mb,
625 ll_wr_max_read_ahead_whole_mb, 0 },
626 { "max_cached_mb", ll_rd_max_cached_mb, ll_wr_max_cached_mb, 0 },
627 { "checksum_pages", ll_rd_checksum, ll_wr_checksum, 0 },
628 { "max_rw_chunk", ll_rd_max_rw_chunk, ll_wr_max_rw_chunk, 0 },
629 { "stats_track_pid", ll_rd_track_pid, ll_wr_track_pid, 0 },
630 { "stats_track_ppid", ll_rd_track_ppid, ll_wr_track_ppid, 0 },
631 { "stats_track_gid", ll_rd_track_gid, ll_wr_track_gid, 0 },
632 { "statahead_max", ll_rd_statahead_max, ll_wr_statahead_max, 0 },
633 { "statahead_stats", ll_rd_statahead_stats, 0, 0 },
634 { "lazystatfs", ll_rd_lazystatfs, ll_wr_lazystatfs, 0 },
638 #define MAX_STRING_SIZE 128
640 struct llite_file_opcode {
644 } llite_opcode_table[LPROC_LL_FILE_OPCODES] = {
646 { LPROC_LL_DIRTY_HITS, LPROCFS_TYPE_REGS, "dirty_pages_hits" },
647 { LPROC_LL_DIRTY_MISSES, LPROCFS_TYPE_REGS, "dirty_pages_misses" },
648 { LPROC_LL_WB_WRITEPAGE, LPROCFS_CNTR_AVGMINMAX|LPROCFS_TYPE_PAGES,
649 "writeback_from_writepage" },
650 { LPROC_LL_WB_PRESSURE, LPROCFS_CNTR_AVGMINMAX|LPROCFS_TYPE_PAGES,
651 "writeback_from_pressure" },
652 { LPROC_LL_WB_OK, LPROCFS_CNTR_AVGMINMAX|LPROCFS_TYPE_PAGES,
653 "writeback_ok_pages" },
654 { LPROC_LL_WB_FAIL, LPROCFS_CNTR_AVGMINMAX|LPROCFS_TYPE_PAGES,
655 "writeback_failed_pages" },
656 { LPROC_LL_READ_BYTES, LPROCFS_CNTR_AVGMINMAX|LPROCFS_TYPE_BYTES,
658 { LPROC_LL_WRITE_BYTES, LPROCFS_CNTR_AVGMINMAX|LPROCFS_TYPE_BYTES,
660 { LPROC_LL_BRW_READ, LPROCFS_CNTR_AVGMINMAX|LPROCFS_TYPE_PAGES,
662 { LPROC_LL_BRW_WRITE, LPROCFS_CNTR_AVGMINMAX|LPROCFS_TYPE_PAGES,
665 { LPROC_LL_IOCTL, LPROCFS_TYPE_REGS, "ioctl" },
666 { LPROC_LL_OPEN, LPROCFS_TYPE_REGS, "open" },
667 { LPROC_LL_RELEASE, LPROCFS_TYPE_REGS, "close" },
668 { LPROC_LL_MAP, LPROCFS_TYPE_REGS, "mmap" },
669 { LPROC_LL_LLSEEK, LPROCFS_TYPE_REGS, "seek" },
670 { LPROC_LL_FSYNC, LPROCFS_TYPE_REGS, "fsync" },
671 /* inode operation */
672 { LPROC_LL_SETATTR, LPROCFS_TYPE_REGS, "setattr" },
673 { LPROC_LL_TRUNC, LPROCFS_TYPE_REGS, "truncate" },
674 { LPROC_LL_LOCKLESS_TRUNC, LPROCFS_TYPE_REGS, "lockless_truncate"},
675 { LPROC_LL_FLOCK, LPROCFS_TYPE_REGS, "flock" },
676 { LPROC_LL_GETATTR, LPROCFS_TYPE_REGS, "getattr" },
677 /* special inode operation */
678 { LPROC_LL_STAFS, LPROCFS_TYPE_REGS, "statfs" },
679 { LPROC_LL_ALLOC_INODE, LPROCFS_TYPE_REGS, "alloc_inode" },
680 { LPROC_LL_SETXATTR, LPROCFS_TYPE_REGS, "setxattr" },
681 { LPROC_LL_GETXATTR, LPROCFS_TYPE_REGS, "getxattr" },
682 { LPROC_LL_LISTXATTR, LPROCFS_TYPE_REGS, "listxattr" },
683 { LPROC_LL_REMOVEXATTR, LPROCFS_TYPE_REGS, "removexattr" },
684 { LPROC_LL_INODE_PERM, LPROCFS_TYPE_REGS, "inode_permission" },
685 { LPROC_LL_DIRECT_READ, LPROCFS_CNTR_AVGMINMAX|LPROCFS_TYPE_PAGES,
687 { LPROC_LL_DIRECT_WRITE, LPROCFS_CNTR_AVGMINMAX|LPROCFS_TYPE_PAGES,
689 { LPROC_LL_LOCKLESS_READ, LPROCFS_CNTR_AVGMINMAX|LPROCFS_TYPE_BYTES,
690 "lockless_read_bytes" },
691 { LPROC_LL_LOCKLESS_WRITE, LPROCFS_CNTR_AVGMINMAX|LPROCFS_TYPE_BYTES,
692 "lockless_write_bytes" },
696 void ll_stats_ops_tally(struct ll_sb_info *sbi, int op, int count)
700 if (sbi->ll_stats_track_type == STATS_TRACK_ALL)
701 lprocfs_counter_add(sbi->ll_stats, op, count);
702 else if (sbi->ll_stats_track_type == STATS_TRACK_PID &&
703 sbi->ll_stats_track_id == current->pid)
704 lprocfs_counter_add(sbi->ll_stats, op, count);
705 else if (sbi->ll_stats_track_type == STATS_TRACK_PPID &&
706 sbi->ll_stats_track_id == current->parent->pid)
707 lprocfs_counter_add(sbi->ll_stats, op, count);
708 else if (sbi->ll_stats_track_type == STATS_TRACK_GID &&
709 sbi->ll_stats_track_id == cfs_curproc_gid())
710 lprocfs_counter_add(sbi->ll_stats, op, count);
712 EXPORT_SYMBOL(ll_stats_ops_tally);
714 static const char *ra_stat_string[] = {
715 [RA_STAT_HIT] = "hits",
716 [RA_STAT_MISS] = "misses",
717 [RA_STAT_DISTANT_READPAGE] = "readpage not consecutive",
718 [RA_STAT_MISS_IN_WINDOW] = "miss inside window",
719 [RA_STAT_FAILED_GRAB_PAGE] = "failed grab_cache_page",
720 [RA_STAT_FAILED_MATCH] = "failed lock match",
721 [RA_STAT_DISCARDED] = "read but discarded",
722 [RA_STAT_ZERO_LEN] = "zero length file",
723 [RA_STAT_ZERO_WINDOW] = "zero size window",
724 [RA_STAT_EOF] = "read-ahead to EOF",
725 [RA_STAT_MAX_IN_FLIGHT] = "hit max r-a issue",
726 [RA_STAT_WRONG_GRAB_PAGE] = "wrong page from grab_cache_page",
730 int lprocfs_register_mountpoint(struct proc_dir_entry *parent,
731 struct super_block *sb, char *osc, char *mdc)
733 struct lprocfs_vars lvars[2];
734 struct lustre_sb_info *lsi = s2lsi(sb);
735 struct ll_sb_info *sbi = ll_s2sbi(sb);
736 struct obd_device *obd;
737 char name[MAX_STRING_SIZE + 1], *ptr;
738 int err, id, len, rc;
741 memset(lvars, 0, sizeof(lvars));
743 name[MAX_STRING_SIZE] = '\0';
744 lvars[0].name = name;
746 LASSERT(sbi != NULL);
747 LASSERT(mdc != NULL);
748 LASSERT(osc != NULL);
751 len = strlen(lsi->lsi_lmd->lmd_profile);
752 ptr = strrchr(lsi->lsi_lmd->lmd_profile, '-');
753 if (ptr && (strcmp(ptr, "-client") == 0))
757 snprintf(name, MAX_STRING_SIZE, "%.*s-%p", len,
758 lsi->lsi_lmd->lmd_profile, sb);
760 sbi->ll_proc_root = lprocfs_register(name, parent, NULL, NULL);
761 if (IS_ERR(sbi->ll_proc_root)) {
762 err = PTR_ERR(sbi->ll_proc_root);
763 sbi->ll_proc_root = NULL;
767 rc = lprocfs_seq_create(sbi->ll_proc_root, "dump_page_cache", 0444,
768 &vvp_dump_pgcache_file_ops, sbi);
770 CWARN("Error adding the dump_page_cache file\n");
772 rc = lprocfs_seq_create(sbi->ll_proc_root, "extents_stats", 0644,
773 &ll_rw_extents_stats_fops, sbi);
775 CWARN("Error adding the extent_stats file\n");
777 rc = lprocfs_seq_create(sbi->ll_proc_root, "extents_stats_per_process",
778 0644, &ll_rw_extents_stats_pp_fops, sbi);
780 CWARN("Error adding the extents_stats_per_process file\n");
782 rc = lprocfs_seq_create(sbi->ll_proc_root, "offset_stats", 0644,
783 &ll_rw_offset_stats_fops, sbi);
785 CWARN("Error adding the offset_stats file\n");
787 /* File operations stats */
788 sbi->ll_stats = lprocfs_alloc_stats(LPROC_LL_FILE_OPCODES,
789 LPROCFS_STATS_FLAG_NONE);
790 if (sbi->ll_stats == NULL)
791 GOTO(out, err = -ENOMEM);
792 /* do counter init */
793 for (id = 0; id < LPROC_LL_FILE_OPCODES; id++) {
794 __u32 type = llite_opcode_table[id].type;
796 if (type & LPROCFS_TYPE_REGS)
798 else if (type & LPROCFS_TYPE_BYTES)
800 else if (type & LPROCFS_TYPE_PAGES)
802 lprocfs_counter_init(sbi->ll_stats,
803 llite_opcode_table[id].opcode,
804 (type & LPROCFS_CNTR_AVGMINMAX),
805 llite_opcode_table[id].opname, ptr);
807 err = lprocfs_register_stats(sbi->ll_proc_root, "stats", sbi->ll_stats);
811 sbi->ll_ra_stats = lprocfs_alloc_stats(ARRAY_SIZE(ra_stat_string),
812 LPROCFS_STATS_FLAG_NONE);
813 if (sbi->ll_ra_stats == NULL)
814 GOTO(out, err = -ENOMEM);
816 for (id = 0; id < ARRAY_SIZE(ra_stat_string); id++)
817 lprocfs_counter_init(sbi->ll_ra_stats, id, 0,
818 ra_stat_string[id], "pages");
819 err = lprocfs_register_stats(sbi->ll_proc_root, "read_ahead_stats",
825 err = lprocfs_add_vars(sbi->ll_proc_root, lprocfs_llite_obd_vars, sb);
830 obd = class_name2obd(mdc);
832 LASSERT(obd != NULL);
833 LASSERT(obd->obd_magic == OBD_DEVICE_MAGIC);
834 LASSERT(obd->obd_type->typ_name != NULL);
836 snprintf(name, MAX_STRING_SIZE, "%s/common_name",
837 obd->obd_type->typ_name);
838 lvars[0].read_fptr = lprocfs_rd_name;
839 err = lprocfs_add_vars(sbi->ll_proc_root, lvars, obd);
843 snprintf(name, MAX_STRING_SIZE, "%s/uuid", obd->obd_type->typ_name);
844 lvars[0].read_fptr = lprocfs_rd_uuid;
845 err = lprocfs_add_vars(sbi->ll_proc_root, lvars, obd);
850 obd = class_name2obd(osc);
852 LASSERT(obd != NULL);
853 LASSERT(obd->obd_magic == OBD_DEVICE_MAGIC);
854 LASSERT(obd->obd_type->typ_name != NULL);
856 snprintf(name, MAX_STRING_SIZE, "%s/common_name",
857 obd->obd_type->typ_name);
858 lvars[0].read_fptr = lprocfs_rd_name;
859 err = lprocfs_add_vars(sbi->ll_proc_root, lvars, obd);
863 snprintf(name, MAX_STRING_SIZE, "%s/uuid", obd->obd_type->typ_name);
864 lvars[0].read_fptr = lprocfs_rd_uuid;
865 err = lprocfs_add_vars(sbi->ll_proc_root, lvars, obd);
868 lprocfs_remove(&sbi->ll_proc_root);
869 lprocfs_free_stats(&sbi->ll_ra_stats);
870 lprocfs_free_stats(&sbi->ll_stats);
875 void lprocfs_unregister_mountpoint(struct ll_sb_info *sbi)
877 if (sbi->ll_proc_root) {
878 lprocfs_remove(&sbi->ll_proc_root);
879 lprocfs_free_stats(&sbi->ll_ra_stats);
880 lprocfs_free_stats(&sbi->ll_stats);
883 #undef MAX_STRING_SIZE
885 #define pct(a,b) (b ? a * 100 / b : 0)
887 static void ll_display_extents_info(struct ll_rw_extents_info *io_extents,
888 struct seq_file *seq, int which)
890 unsigned long read_tot = 0, write_tot = 0, read_cum, write_cum;
891 unsigned long start, end, r, w;
892 char *unitp = "KMGTPEZY";
894 struct per_process_info *pp_info = &io_extents->pp_extents[which];
900 for(i = 0; i < LL_HIST_MAX; i++) {
901 read_tot += pp_info->pp_r_hist.oh_buckets[i];
902 write_tot += pp_info->pp_w_hist.oh_buckets[i];
905 for(i = 0; i < LL_HIST_MAX; i++) {
906 r = pp_info->pp_r_hist.oh_buckets[i];
907 w = pp_info->pp_w_hist.oh_buckets[i];
910 end = 1 << (i + LL_HIST_START - units);
911 seq_printf(seq, "%4lu%c - %4lu%c%c: %14lu %4lu %4lu | "
912 "%14lu %4lu %4lu\n", start, *unitp, end, *unitp,
913 (i == LL_HIST_MAX - 1) ? '+' : ' ',
914 r, pct(r, read_tot), pct(read_cum, read_tot),
915 w, pct(w, write_tot), pct(write_cum, write_tot));
917 if (start == 1<<10) {
922 if (read_cum == read_tot && write_cum == write_tot)
927 static int ll_rw_extents_stats_pp_seq_show(struct seq_file *seq, void *v)
930 struct ll_sb_info *sbi = seq->private;
931 struct ll_rw_extents_info *io_extents = &sbi->ll_rw_extents_info;
934 cfs_gettimeofday(&now);
936 if (!sbi->ll_rw_stats_on) {
937 seq_printf(seq, "disabled\n"
938 "write anything in this file to activate, "
939 "then 0 or \"[D/d]isabled\" to deactivate\n");
942 seq_printf(seq, "snapshot_time: %lu.%lu (secs.usecs)\n",
943 now.tv_sec, now.tv_usec);
944 seq_printf(seq, "%15s %19s | %20s\n", " ", "read", "write");
945 seq_printf(seq, "%13s %14s %4s %4s | %14s %4s %4s\n",
946 "extents", "calls", "%", "cum%",
947 "calls", "%", "cum%");
948 cfs_spin_lock(&sbi->ll_pp_extent_lock);
949 for(k = 0; k < LL_PROCESS_HIST_MAX; k++) {
950 if(io_extents->pp_extents[k].pid != 0) {
951 seq_printf(seq, "\nPID: %d\n",
952 io_extents->pp_extents[k].pid);
953 ll_display_extents_info(io_extents, seq, k);
956 cfs_spin_unlock(&sbi->ll_pp_extent_lock);
960 static ssize_t ll_rw_extents_stats_pp_seq_write(struct file *file,
961 const char *buf, size_t len,
964 struct seq_file *seq = file->private_data;
965 struct ll_sb_info *sbi = seq->private;
966 struct ll_rw_extents_info *io_extents = &sbi->ll_rw_extents_info;
968 int value = 1, rc = 0;
970 rc = lprocfs_write_helper(buf, len, &value);
971 if (rc < 0 && (strcmp(buf, "disabled") == 0 ||
972 strcmp(buf, "Disabled") == 0))
976 sbi->ll_rw_stats_on = 0;
978 sbi->ll_rw_stats_on = 1;
980 cfs_spin_lock(&sbi->ll_pp_extent_lock);
981 for(i = 0; i < LL_PROCESS_HIST_MAX; i++) {
982 io_extents->pp_extents[i].pid = 0;
983 lprocfs_oh_clear(&io_extents->pp_extents[i].pp_r_hist);
984 lprocfs_oh_clear(&io_extents->pp_extents[i].pp_w_hist);
986 cfs_spin_unlock(&sbi->ll_pp_extent_lock);
990 LPROC_SEQ_FOPS(ll_rw_extents_stats_pp);
992 static int ll_rw_extents_stats_seq_show(struct seq_file *seq, void *v)
995 struct ll_sb_info *sbi = seq->private;
996 struct ll_rw_extents_info *io_extents = &sbi->ll_rw_extents_info;
998 cfs_gettimeofday(&now);
1000 if (!sbi->ll_rw_stats_on) {
1001 seq_printf(seq, "disabled\n"
1002 "write anything in this file to activate, "
1003 "then 0 or \"[D/d]isabled\" to deactivate\n");
1006 seq_printf(seq, "snapshot_time: %lu.%lu (secs.usecs)\n",
1007 now.tv_sec, now.tv_usec);
1009 seq_printf(seq, "%15s %19s | %20s\n", " ", "read", "write");
1010 seq_printf(seq, "%13s %14s %4s %4s | %14s %4s %4s\n",
1011 "extents", "calls", "%", "cum%",
1012 "calls", "%", "cum%");
1013 cfs_spin_lock(&sbi->ll_lock);
1014 ll_display_extents_info(io_extents, seq, LL_PROCESS_HIST_MAX);
1015 cfs_spin_unlock(&sbi->ll_lock);
1020 static ssize_t ll_rw_extents_stats_seq_write(struct file *file, const char *buf,
1021 size_t len, loff_t *off)
1023 struct seq_file *seq = file->private_data;
1024 struct ll_sb_info *sbi = seq->private;
1025 struct ll_rw_extents_info *io_extents = &sbi->ll_rw_extents_info;
1027 int value = 1, rc = 0;
1029 rc = lprocfs_write_helper(buf, len, &value);
1030 if (rc < 0 && (strcmp(buf, "disabled") == 0 ||
1031 strcmp(buf, "Disabled") == 0))
1035 sbi->ll_rw_stats_on = 0;
1037 sbi->ll_rw_stats_on = 1;
1038 cfs_spin_lock(&sbi->ll_pp_extent_lock);
1039 for(i = 0; i <= LL_PROCESS_HIST_MAX; i++)
1041 io_extents->pp_extents[i].pid = 0;
1042 lprocfs_oh_clear(&io_extents->pp_extents[i].pp_r_hist);
1043 lprocfs_oh_clear(&io_extents->pp_extents[i].pp_w_hist);
1045 cfs_spin_unlock(&sbi->ll_pp_extent_lock);
1050 LPROC_SEQ_FOPS(ll_rw_extents_stats);
1052 void ll_rw_stats_tally(struct ll_sb_info *sbi, pid_t pid,
1053 struct ll_file_data *file, loff_t pos,
1054 size_t count, int rw)
1057 struct ll_rw_process_info *process;
1058 struct ll_rw_process_info *offset;
1059 int *off_count = &sbi->ll_rw_offset_entry_count;
1060 int *process_count = &sbi->ll_offset_process_count;
1061 struct ll_rw_extents_info *io_extents = &sbi->ll_rw_extents_info;
1063 if(!sbi->ll_rw_stats_on)
1065 process = sbi->ll_rw_process_info;
1066 offset = sbi->ll_rw_offset_info;
1068 cfs_spin_lock(&sbi->ll_pp_extent_lock);
1069 /* Extent statistics */
1070 for(i = 0; i < LL_PROCESS_HIST_MAX; i++) {
1071 if(io_extents->pp_extents[i].pid == pid) {
1079 sbi->ll_extent_process_count =
1080 (sbi->ll_extent_process_count + 1) % LL_PROCESS_HIST_MAX;
1081 cur = sbi->ll_extent_process_count;
1082 io_extents->pp_extents[cur].pid = pid;
1083 lprocfs_oh_clear(&io_extents->pp_extents[cur].pp_r_hist);
1084 lprocfs_oh_clear(&io_extents->pp_extents[cur].pp_w_hist);
1087 for(i = 0; (count >= (1 << LL_HIST_START << i)) &&
1088 (i < (LL_HIST_MAX - 1)); i++);
1090 io_extents->pp_extents[cur].pp_r_hist.oh_buckets[i]++;
1091 io_extents->pp_extents[LL_PROCESS_HIST_MAX].pp_r_hist.oh_buckets[i]++;
1093 io_extents->pp_extents[cur].pp_w_hist.oh_buckets[i]++;
1094 io_extents->pp_extents[LL_PROCESS_HIST_MAX].pp_w_hist.oh_buckets[i]++;
1096 cfs_spin_unlock(&sbi->ll_pp_extent_lock);
1098 cfs_spin_lock(&sbi->ll_process_lock);
1099 /* Offset statistics */
1100 for (i = 0; i < LL_PROCESS_HIST_MAX; i++) {
1101 if (process[i].rw_pid == pid) {
1102 if (process[i].rw_last_file != file) {
1103 process[i].rw_range_start = pos;
1104 process[i].rw_last_file_pos = pos + count;
1105 process[i].rw_smallest_extent = count;
1106 process[i].rw_largest_extent = count;
1107 process[i].rw_offset = 0;
1108 process[i].rw_last_file = file;
1109 cfs_spin_unlock(&sbi->ll_process_lock);
1112 if (process[i].rw_last_file_pos != pos) {
1114 (*off_count + 1) % LL_OFFSET_HIST_MAX;
1115 offset[*off_count].rw_op = process[i].rw_op;
1116 offset[*off_count].rw_pid = pid;
1117 offset[*off_count].rw_range_start =
1118 process[i].rw_range_start;
1119 offset[*off_count].rw_range_end =
1120 process[i].rw_last_file_pos;
1121 offset[*off_count].rw_smallest_extent =
1122 process[i].rw_smallest_extent;
1123 offset[*off_count].rw_largest_extent =
1124 process[i].rw_largest_extent;
1125 offset[*off_count].rw_offset =
1126 process[i].rw_offset;
1127 process[i].rw_op = rw;
1128 process[i].rw_range_start = pos;
1129 process[i].rw_smallest_extent = count;
1130 process[i].rw_largest_extent = count;
1131 process[i].rw_offset = pos -
1132 process[i].rw_last_file_pos;
1134 if(process[i].rw_smallest_extent > count)
1135 process[i].rw_smallest_extent = count;
1136 if(process[i].rw_largest_extent < count)
1137 process[i].rw_largest_extent = count;
1138 process[i].rw_last_file_pos = pos + count;
1139 cfs_spin_unlock(&sbi->ll_process_lock);
1143 *process_count = (*process_count + 1) % LL_PROCESS_HIST_MAX;
1144 process[*process_count].rw_pid = pid;
1145 process[*process_count].rw_op = rw;
1146 process[*process_count].rw_range_start = pos;
1147 process[*process_count].rw_last_file_pos = pos + count;
1148 process[*process_count].rw_smallest_extent = count;
1149 process[*process_count].rw_largest_extent = count;
1150 process[*process_count].rw_offset = 0;
1151 process[*process_count].rw_last_file = file;
1152 cfs_spin_unlock(&sbi->ll_process_lock);
1155 static int ll_rw_offset_stats_seq_show(struct seq_file *seq, void *v)
1158 struct ll_sb_info *sbi = seq->private;
1159 struct ll_rw_process_info *offset = sbi->ll_rw_offset_info;
1160 struct ll_rw_process_info *process = sbi->ll_rw_process_info;
1163 cfs_gettimeofday(&now);
1165 if (!sbi->ll_rw_stats_on) {
1166 seq_printf(seq, "disabled\n"
1167 "write anything in this file to activate, "
1168 "then 0 or \"[D/d]isabled\" to deactivate\n");
1171 cfs_spin_lock(&sbi->ll_process_lock);
1173 seq_printf(seq, "snapshot_time: %lu.%lu (secs.usecs)\n",
1174 now.tv_sec, now.tv_usec);
1175 seq_printf(seq, "%3s %10s %14s %14s %17s %17s %14s\n",
1176 "R/W", "PID", "RANGE START", "RANGE END",
1177 "SMALLEST EXTENT", "LARGEST EXTENT", "OFFSET");
1178 /* We stored the discontiguous offsets here; print them first */
1179 for(i = 0; i < LL_OFFSET_HIST_MAX; i++) {
1180 if (offset[i].rw_pid != 0)
1181 seq_printf(seq,"%3c %10d %14Lu %14Lu %17lu %17lu %14Lu",
1182 offset[i].rw_op ? 'W' : 'R',
1184 offset[i].rw_range_start,
1185 offset[i].rw_range_end,
1186 (unsigned long)offset[i].rw_smallest_extent,
1187 (unsigned long)offset[i].rw_largest_extent,
1188 offset[i].rw_offset);
1190 /* Then print the current offsets for each process */
1191 for(i = 0; i < LL_PROCESS_HIST_MAX; i++) {
1192 if (process[i].rw_pid != 0)
1193 seq_printf(seq,"%3c %10d %14Lu %14Lu %17lu %17lu %14Lu",
1194 process[i].rw_op ? 'W' : 'R',
1196 process[i].rw_range_start,
1197 process[i].rw_last_file_pos,
1198 (unsigned long)process[i].rw_smallest_extent,
1199 (unsigned long)process[i].rw_largest_extent,
1200 process[i].rw_offset);
1202 cfs_spin_unlock(&sbi->ll_process_lock);
1207 static ssize_t ll_rw_offset_stats_seq_write(struct file *file, const char *buf,
1208 size_t len, loff_t *off)
1210 struct seq_file *seq = file->private_data;
1211 struct ll_sb_info *sbi = seq->private;
1212 struct ll_rw_process_info *process_info = sbi->ll_rw_process_info;
1213 struct ll_rw_process_info *offset_info = sbi->ll_rw_offset_info;
1214 int value = 1, rc = 0;
1216 rc = lprocfs_write_helper(buf, len, &value);
1218 if (rc < 0 && (strcmp(buf, "disabled") == 0 ||
1219 strcmp(buf, "Disabled") == 0))
1223 sbi->ll_rw_stats_on = 0;
1225 sbi->ll_rw_stats_on = 1;
1227 cfs_spin_lock(&sbi->ll_process_lock);
1228 sbi->ll_offset_process_count = 0;
1229 sbi->ll_rw_offset_entry_count = 0;
1230 memset(process_info, 0, sizeof(struct ll_rw_process_info) *
1231 LL_PROCESS_HIST_MAX);
1232 memset(offset_info, 0, sizeof(struct ll_rw_process_info) *
1233 LL_OFFSET_HIST_MAX);
1234 cfs_spin_unlock(&sbi->ll_process_lock);
1239 LPROC_SEQ_FOPS(ll_rw_offset_stats);
1241 void lprocfs_llite_init_vars(struct lprocfs_static_vars *lvars)
1243 lvars->module_vars = NULL;
1244 lvars->obd_vars = lprocfs_llite_obd_vars;
1246 #endif /* LPROCFS */