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 Lustre, http://www.lustre.org.
8 * Lustre is free software; you can redistribute it and/or
9 * modify it under the terms of version 2 of the GNU General Public
10 * License as published by the Free Software Foundation.
12 * Lustre is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 * GNU General Public License for more details.
17 * You should have received a copy of the GNU General Public License
18 * along with Lustre; if not, write to the Free Software
19 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
22 #define DEBUG_SUBSYSTEM S_CLASS
24 #include <linux/version.h>
25 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,5,0))
26 #include <asm/statfs.h>
28 #include <linux/obd_class.h>
29 #include <linux/lprocfs_status.h>
30 #include <linux/seq_file.h>
31 #include "osc_internal.h"
34 static struct lprocfs_vars lprocfs_obd_vars[] = { {0} };
35 static struct lprocfs_vars lprocfs_module_vars[] = { {0} };
38 int osc_rd_max_pages_per_rpc(char *page, char **start, off_t off, int count,
41 struct obd_device *dev = data;
42 struct client_obd *cli = &dev->u.cli;
45 spin_lock(&cli->cl_loi_list_lock);
46 rc = snprintf(page, count, "%d\n", cli->cl_max_pages_per_rpc);
47 spin_unlock(&cli->cl_loi_list_lock);
51 int osc_wr_max_pages_per_rpc(struct file *file, const char *buffer,
52 unsigned long count, void *data)
54 struct obd_device *dev = data;
55 struct client_obd *cli = &dev->u.cli;
58 rc = lprocfs_write_helper(buffer, count, &val);
62 if (val < 1 || val > PTL_MD_MAX_PAGES)
65 spin_lock(&cli->cl_loi_list_lock);
66 cli->cl_max_pages_per_rpc = val;
67 spin_unlock(&cli->cl_loi_list_lock);
72 int osc_rd_max_rpcs_in_flight(char *page, char **start, off_t off, int count,
75 struct obd_device *dev = data;
76 struct client_obd *cli = &dev->u.cli;
79 spin_lock(&cli->cl_loi_list_lock);
80 rc = snprintf(page, count, "%u\n", cli->cl_max_rpcs_in_flight);
81 spin_unlock(&cli->cl_loi_list_lock);
85 int osc_wr_max_rpcs_in_flight(struct file *file, const char *buffer,
86 unsigned long count, void *data)
88 struct obd_device *dev = data;
89 struct client_obd *cli = &dev->u.cli;
92 rc = lprocfs_write_helper(buffer, count, &val);
96 if (val < 1 || val > OSC_MAX_RIF_MAX)
99 spin_lock(&cli->cl_loi_list_lock);
100 cli->cl_max_rpcs_in_flight = val;
101 spin_unlock(&cli->cl_loi_list_lock);
106 int osc_rd_max_dirty_mb(char *page, char **start, off_t off, int count,
107 int *eof, void *data)
109 struct obd_device *dev = data;
110 struct client_obd *cli = &dev->u.cli;
114 spin_lock(&cli->cl_loi_list_lock);
115 val = cli->cl_dirty_max >> 20;
116 rc = snprintf(page, count, "%d\n", val);
117 spin_unlock(&cli->cl_loi_list_lock);
121 int osc_wr_max_dirty_mb(struct file *file, const char *buffer,
122 unsigned long count, void *data)
124 struct obd_device *dev = data;
125 struct client_obd *cli = &dev->u.cli;
128 rc = lprocfs_write_helper(buffer, count, &val);
132 if (val < 0 || val > OSC_MAX_DIRTY_MB_MAX)
135 spin_lock(&cli->cl_loi_list_lock);
136 cli->cl_dirty_max = (obd_count)val * 1024 * 1024;
137 osc_wake_cache_waiters(cli);
138 spin_unlock(&cli->cl_loi_list_lock);
143 int osc_rd_cur_dirty_bytes(char *page, char **start, off_t off, int count,
144 int *eof, void *data)
146 struct obd_device *dev = data;
147 struct client_obd *cli = &dev->u.cli;
150 spin_lock(&cli->cl_loi_list_lock);
151 rc = snprintf(page, count, "%lu\n", cli->cl_dirty);
152 spin_unlock(&cli->cl_loi_list_lock);
156 int osc_rd_cur_grant_bytes(char *page, char **start, off_t off, int count,
157 int *eof, void *data)
159 struct obd_device *dev = data;
160 struct client_obd *cli = &dev->u.cli;
163 spin_lock(&cli->cl_loi_list_lock);
164 rc = snprintf(page, count, "%lu\n", cli->cl_avail_grant);
165 spin_unlock(&cli->cl_loi_list_lock);
169 int osc_rd_create_low_wm(char *page, char **start, off_t off, int count,
170 int *eof, void *data)
172 struct obd_device *obd = data;
173 struct obd_export *exp;
175 if (obd == NULL || list_empty(&obd->obd_exports))
178 spin_lock(&obd->obd_dev_lock);
179 exp = list_entry(obd->obd_exports.next, struct obd_export,
181 spin_unlock(&obd->obd_dev_lock);
183 return snprintf(page, count, "%d\n",
184 exp->exp_osc_data.oed_oscc.oscc_kick_barrier);
187 int osc_wr_create_low_wm(struct file *file, const char *buffer,
188 unsigned long count, void *data)
190 struct obd_device *obd = data;
191 struct obd_export *exp;
194 if (obd == NULL || list_empty(&obd->obd_exports))
197 rc = lprocfs_write_helper(buffer, count, &val);
204 spin_lock(&obd->obd_dev_lock);
205 exp = list_entry(obd->obd_exports.next, struct obd_export,
207 exp->exp_osc_data.oed_oscc.oscc_kick_barrier = val;
208 spin_unlock(&obd->obd_dev_lock);
213 int osc_rd_create_count(char *page, char **start, off_t off, int count,
214 int *eof, void *data)
216 struct obd_device *obd = data;
217 struct obd_export *exp;
219 if (obd == NULL || list_empty(&obd->obd_exports))
222 spin_lock(&obd->obd_dev_lock);
223 exp = list_entry(obd->obd_exports.next, struct obd_export,
225 spin_unlock(&obd->obd_dev_lock);
227 return snprintf(page, count, "%d\n",
228 exp->exp_osc_data.oed_oscc.oscc_grow_count);
231 int osc_wr_create_count(struct file *file, const char *buffer,
232 unsigned long count, void *data)
234 struct obd_device *obd = data;
235 struct obd_export *exp;
238 if (obd == NULL || list_empty(&obd->obd_exports))
241 rc = lprocfs_write_helper(buffer, count, &val);
248 spin_lock(&obd->obd_dev_lock);
249 exp = list_entry(obd->obd_exports.next, struct obd_export,
251 exp->exp_osc_data.oed_oscc.oscc_grow_count = val;
252 spin_unlock(&obd->obd_dev_lock);
257 int osc_rd_prealloc_next_id(char *page, char **start, off_t off, int count,
258 int *eof, void *data)
260 struct obd_device *obd = data;
261 struct obd_export *exp;
263 if (obd == NULL || list_empty(&obd->obd_exports))
266 spin_lock(&obd->obd_dev_lock);
267 exp = list_entry(obd->obd_exports.next, struct obd_export,
269 spin_unlock(&obd->obd_dev_lock);
271 return snprintf(page, count, LPU64"\n",
272 exp->exp_osc_data.oed_oscc.oscc_next_id);
275 int osc_rd_prealloc_last_id(char *page, char **start, off_t off, int count,
276 int *eof, void *data)
278 struct obd_device *obd = data;
279 struct obd_export *exp;
281 if (obd == NULL || list_empty(&obd->obd_exports))
284 spin_lock(&obd->obd_dev_lock);
285 exp = list_entry(obd->obd_exports.next, struct obd_export,
287 spin_unlock(&obd->obd_dev_lock);
289 return snprintf(page, count, LPU64"\n",
290 exp->exp_osc_data.oed_oscc.oscc_last_id);
293 static struct lprocfs_vars lprocfs_obd_vars[] = {
294 { "uuid", lprocfs_rd_uuid, 0, 0 },
295 { "blocksize", lprocfs_rd_blksize, 0, 0 },
296 { "kbytestotal", lprocfs_rd_kbytestotal, 0, 0 },
297 { "kbytesfree", lprocfs_rd_kbytesfree, 0, 0 },
298 { "kbytesavail", lprocfs_rd_kbytesavail, 0, 0 },
299 { "filestotal", lprocfs_rd_filestotal, 0, 0 },
300 { "filesfree", lprocfs_rd_filesfree, 0, 0 },
301 //{ "filegroups", lprocfs_rd_filegroups, 0, 0 },
302 { "ost_server_uuid", lprocfs_rd_server_uuid, 0, 0 },
303 { "ost_conn_uuid", lprocfs_rd_conn_uuid, 0, 0 },
304 { "max_pages_per_rpc", osc_rd_max_pages_per_rpc,
305 osc_wr_max_pages_per_rpc, 0 },
306 { "max_rpcs_in_flight", osc_rd_max_rpcs_in_flight,
307 osc_wr_max_rpcs_in_flight, 0 },
308 { "max_dirty_mb", osc_rd_max_dirty_mb, osc_wr_max_dirty_mb, 0 },
309 { "cur_dirty_bytes", osc_rd_cur_dirty_bytes, 0, 0 },
310 { "cur_grant_bytes", osc_rd_cur_grant_bytes, 0, 0 },
311 {"create_low_watermark", osc_rd_create_low_wm, osc_wr_create_low_wm, 0},
312 { "create_count", osc_rd_create_count, osc_wr_create_count, 0 },
313 { "prealloc_next_id", osc_rd_prealloc_next_id, 0, 0 },
314 { "prealloc_last_id", osc_rd_prealloc_last_id, 0, 0 },
318 static struct lprocfs_vars lprocfs_module_vars[] = {
319 { "num_refs", lprocfs_rd_numrefs, 0, 0 },
323 #define pct(a,b) (b ? a * 100 / b : 0)
325 static int osc_rpc_stats_seq_show(struct seq_file *seq, void *v)
328 struct obd_device *dev = seq->private;
329 struct client_obd *cli = &dev->u.cli;
331 unsigned long read_tot = 0, write_tot = 0, read_cum, write_cum;
334 do_gettimeofday(&now);
336 spin_lock_irqsave(&cli->cl_loi_list_lock, flags);
338 rpcs = cli->cl_brw_in_flight;
339 r = cli->cl_pending_r_pages;
340 w = cli->cl_pending_w_pages;
342 seq_printf(seq, "snapshot_time: %lu:%lu (secs:usecs)\n",
343 now.tv_sec, now.tv_usec);
344 seq_printf(seq, "RPCs in flight: %d\n", rpcs);
345 seq_printf(seq, "pending write pages: %d\n", w);
346 seq_printf(seq, "pending read pages: %d\n", r);
348 seq_printf(seq, "\n\t\t\tread\t\t\twrite\n");
349 seq_printf(seq, "pages per rpc rpcs %% cum %% |");
350 seq_printf(seq, " rpcs %% cum %%\n");
352 read_tot = lprocfs_oh_sum(&cli->cl_read_page_hist);
353 write_tot = lprocfs_oh_sum(&cli->cl_write_page_hist);
357 for (i = 0; i < OBD_HIST_MAX; i++) {
358 unsigned long r = cli->cl_read_page_hist.oh_buckets[i];
359 unsigned long w = cli->cl_write_page_hist.oh_buckets[i];
362 seq_printf(seq, "%d:\t\t%10lu %3lu %3lu | %10lu %3lu %3lu\n",
363 1 << i, r, pct(r, read_tot),
364 pct(read_cum, read_tot), w,
366 pct(write_cum, write_tot));
367 if (read_cum == read_tot && write_cum == write_tot)
371 seq_printf(seq, "\n\t\t\tread\t\t\twrite\n");
372 seq_printf(seq, "rpcs in flight rpcs %% cum %% |");
373 seq_printf(seq, " rpcs %% cum %%\n");
375 read_tot = lprocfs_oh_sum(&cli->cl_read_rpc_hist);
376 write_tot = lprocfs_oh_sum(&cli->cl_write_rpc_hist);
380 for (i = 0; i < OBD_HIST_MAX; i++) {
381 unsigned long r = cli->cl_read_rpc_hist.oh_buckets[i];
382 unsigned long w = cli->cl_write_rpc_hist.oh_buckets[i];
385 seq_printf(seq, "%d:\t\t%10lu %3lu %3lu | %10lu %3lu %3lu\n",
386 i, r, pct(r, read_tot),
387 pct(read_cum, read_tot), w,
389 pct(write_cum, write_tot));
390 if (read_cum == read_tot && write_cum == write_tot)
394 spin_unlock_irqrestore(&cli->cl_loi_list_lock, flags);
400 static void *osc_rpc_stats_seq_start(struct seq_file *p, loff_t *pos)
406 static void *osc_rpc_stats_seq_next(struct seq_file *p, void *v, loff_t *pos)
411 static void osc_rpc_stats_seq_stop(struct seq_file *p, void *v)
414 struct seq_operations osc_rpc_stats_seq_sops = {
415 .start = osc_rpc_stats_seq_start,
416 .stop = osc_rpc_stats_seq_stop,
417 .next = osc_rpc_stats_seq_next,
418 .show = osc_rpc_stats_seq_show,
421 static int osc_rpc_stats_seq_open(struct inode *inode, struct file *file)
423 struct proc_dir_entry *dp = PDE(inode);
424 struct seq_file *seq;
427 rc = seq_open(file, &osc_rpc_stats_seq_sops);
430 seq = file->private_data;
431 seq->private = dp->data;
435 static ssize_t osc_rpc_stats_seq_write(struct file *file, const char *buf,
436 size_t len, loff_t *off)
438 struct seq_file *seq = file->private_data;
439 struct obd_device *dev = seq->private;
440 struct client_obd *cli = &dev->u.cli;
442 lprocfs_oh_clear(&cli->cl_read_rpc_hist);
443 lprocfs_oh_clear(&cli->cl_write_rpc_hist);
444 lprocfs_oh_clear(&cli->cl_read_page_hist);
445 lprocfs_oh_clear(&cli->cl_write_page_hist);
450 struct file_operations osc_rpc_stats_fops = {
451 .open = osc_rpc_stats_seq_open,
453 .write = osc_rpc_stats_seq_write,
455 .release = seq_release,
458 int lproc_osc_attach_seqstat(struct obd_device *dev)
460 return lprocfs_obd_seq_create(dev, "rpc_stats", 0444,
461 &osc_rpc_stats_fops, dev);
466 LPROCFS_INIT_VARS(osc,lprocfs_module_vars, lprocfs_obd_vars)