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 spin_unlock(&cli->cl_loi_list_lock);
142 int osc_rd_cur_dirty_bytes(char *page, char **start, off_t off, int count,
143 int *eof, void *data)
145 struct obd_device *dev = data;
146 struct client_obd *cli = &dev->u.cli;
149 spin_lock(&cli->cl_loi_list_lock);
150 rc = snprintf(page, count, LPU64"\n", cli->cl_dirty);
151 spin_unlock(&cli->cl_loi_list_lock);
155 int osc_rd_create_low_wm(char *page, char **start, off_t off, int count,
156 int *eof, void *data)
158 struct obd_device *obd = data;
159 struct obd_export *exp;
161 if (obd == NULL || list_empty(&obd->obd_exports))
164 spin_lock(&obd->obd_dev_lock);
165 exp = list_entry(obd->obd_exports.next, struct obd_export,
167 spin_unlock(&obd->obd_dev_lock);
169 return snprintf(page, count, "%d\n",
170 exp->exp_osc_data.oed_oscc.oscc_kick_barrier);
173 int osc_wr_create_low_wm(struct file *file, const char *buffer,
174 unsigned long count, void *data)
176 struct obd_device *obd = data;
177 struct obd_export *exp;
180 if (obd == NULL || list_empty(&obd->obd_exports))
183 rc = lprocfs_write_helper(buffer, count, &val);
190 spin_lock(&obd->obd_dev_lock);
191 exp = list_entry(obd->obd_exports.next, struct obd_export,
193 exp->exp_osc_data.oed_oscc.oscc_kick_barrier = val;
194 spin_unlock(&obd->obd_dev_lock);
199 int osc_rd_create_count(char *page, char **start, off_t off, int count,
200 int *eof, void *data)
202 struct obd_device *obd = data;
203 struct obd_export *exp;
205 if (obd == NULL || list_empty(&obd->obd_exports))
208 spin_lock(&obd->obd_dev_lock);
209 exp = list_entry(obd->obd_exports.next, struct obd_export,
211 spin_unlock(&obd->obd_dev_lock);
213 return snprintf(page, count, "%d\n",
214 exp->exp_osc_data.oed_oscc.oscc_grow_count);
217 int osc_wr_create_count(struct file *file, const char *buffer,
218 unsigned long count, void *data)
220 struct obd_device *obd = data;
221 struct obd_export *exp;
224 if (obd == NULL || list_empty(&obd->obd_exports))
227 rc = lprocfs_write_helper(buffer, count, &val);
234 spin_lock(&obd->obd_dev_lock);
235 exp = list_entry(obd->obd_exports.next, struct obd_export,
237 exp->exp_osc_data.oed_oscc.oscc_grow_count = val;
238 spin_unlock(&obd->obd_dev_lock);
243 int osc_rd_prealloc_next_id(char *page, char **start, off_t off, int count,
244 int *eof, void *data)
246 struct obd_device *obd = data;
247 struct obd_export *exp;
249 if (obd == NULL || list_empty(&obd->obd_exports))
252 spin_lock(&obd->obd_dev_lock);
253 exp = list_entry(obd->obd_exports.next, struct obd_export,
255 spin_unlock(&obd->obd_dev_lock);
257 return snprintf(page, count, LPU64"\n",
258 exp->exp_osc_data.oed_oscc.oscc_next_id);
261 int osc_rd_prealloc_last_id(char *page, char **start, off_t off, int count,
262 int *eof, void *data)
264 struct obd_device *obd = data;
265 struct obd_export *exp;
267 if (obd == NULL || list_empty(&obd->obd_exports))
270 spin_lock(&obd->obd_dev_lock);
271 exp = list_entry(obd->obd_exports.next, struct obd_export,
273 spin_unlock(&obd->obd_dev_lock);
275 return snprintf(page, count, LPU64"\n",
276 exp->exp_osc_data.oed_oscc.oscc_last_id);
279 static struct lprocfs_vars lprocfs_obd_vars[] = {
280 { "uuid", lprocfs_rd_uuid, 0, 0 },
281 { "blocksize", lprocfs_rd_blksize, 0, 0 },
282 { "kbytestotal", lprocfs_rd_kbytestotal, 0, 0 },
283 { "kbytesfree", lprocfs_rd_kbytesfree, 0, 0 },
284 { "filestotal", lprocfs_rd_filestotal, 0, 0 },
285 { "filesfree", lprocfs_rd_filesfree, 0, 0 },
286 //{ "filegroups", lprocfs_rd_filegroups, 0, 0 },
287 { "ost_server_uuid", lprocfs_rd_server_uuid, 0, 0 },
288 { "ost_conn_uuid", lprocfs_rd_conn_uuid, 0, 0 },
289 { "max_pages_per_rpc", osc_rd_max_pages_per_rpc,
290 osc_wr_max_pages_per_rpc, 0 },
291 { "max_rpcs_in_flight", osc_rd_max_rpcs_in_flight,
292 osc_wr_max_rpcs_in_flight, 0 },
293 { "max_dirty_mb", osc_rd_max_dirty_mb, osc_wr_max_dirty_mb, 0 },
294 { "cur_dirty_bytes", osc_rd_cur_dirty_bytes, 0, 0 },
295 {"create_low_watermark", osc_rd_create_low_wm, osc_wr_create_low_wm, 0},
296 { "create_count", osc_rd_create_count, osc_wr_create_count, 0 },
297 { "prealloc_next_id", osc_rd_prealloc_next_id, 0, 0 },
298 { "prealloc_last_id", osc_rd_prealloc_last_id, 0, 0 },
302 static struct lprocfs_vars lprocfs_module_vars[] = {
303 { "num_refs", lprocfs_rd_numrefs, 0, 0 },
307 #define pct(a,b) (b ? a * 100 / b : 0)
309 static int osc_rpc_stats_seq_show(struct seq_file *seq, void *v)
312 struct obd_device *dev = seq->private;
313 struct client_obd *cli = &dev->u.cli;
315 unsigned long read_tot = 0, write_tot = 0, read_cum, write_cum;
318 do_gettimeofday(&now);
320 spin_lock_irqsave(&cli->cl_loi_list_lock, flags);
322 rpcs = cli->cl_brw_in_flight;
323 r = cli->cl_pending_r_pages;
324 w = cli->cl_pending_w_pages;
326 seq_printf(seq, "snapshot_time: %lu:%lu (secs:usecs)\n",
327 now.tv_sec, now.tv_usec);
328 seq_printf(seq, "RPCs in flight: %d\n", rpcs);
329 seq_printf(seq, "pending write pages: %d\n", w);
330 seq_printf(seq, "pending read pages: %d\n", r);
332 seq_printf(seq, "\n\t\t\tread\t\t\twrite\n");
333 seq_printf(seq, "pages per rpc rpcs %% cum %% |");
334 seq_printf(seq, " rpcs %% cum %%\n");
336 read_tot = lprocfs_oh_sum(&cli->cl_read_page_hist);
337 write_tot = lprocfs_oh_sum(&cli->cl_write_page_hist);
341 for (i = 0; i < OBD_HIST_MAX; i++) {
342 unsigned long r = cli->cl_read_page_hist.oh_buckets[i];
343 unsigned long w = cli->cl_write_page_hist.oh_buckets[i];
346 seq_printf(seq, "%d:\t\t%10lu %3lu %3lu | %10lu %3lu %3lu\n",
347 1 << i, r, pct(r, read_tot),
348 pct(read_cum, read_tot), w,
350 pct(write_cum, write_tot));
351 if (read_cum == read_tot && write_cum == write_tot)
355 seq_printf(seq, "\n\t\t\tread\t\t\twrite\n");
356 seq_printf(seq, "rpcs in flight rpcs %% cum %% |");
357 seq_printf(seq, " rpcs %% cum %%\n");
359 read_tot = lprocfs_oh_sum(&cli->cl_read_rpc_hist);
360 write_tot = lprocfs_oh_sum(&cli->cl_write_rpc_hist);
364 for (i = 0; i < OBD_HIST_MAX; i++) {
365 unsigned long r = cli->cl_read_rpc_hist.oh_buckets[i];
366 unsigned long w = cli->cl_write_rpc_hist.oh_buckets[i];
369 seq_printf(seq, "%d:\t\t%10lu %3lu %3lu | %10lu %3lu %3lu\n",
370 i, r, pct(r, read_tot),
371 pct(read_cum, read_tot), w,
373 pct(write_cum, write_tot));
374 if (read_cum == read_tot && write_cum == write_tot)
378 spin_unlock_irqrestore(&cli->cl_loi_list_lock, flags);
384 static void *osc_rpc_stats_seq_start(struct seq_file *p, loff_t *pos)
390 static void *osc_rpc_stats_seq_next(struct seq_file *p, void *v, loff_t *pos)
395 static void osc_rpc_stats_seq_stop(struct seq_file *p, void *v)
398 struct seq_operations osc_rpc_stats_seq_sops = {
399 .start = osc_rpc_stats_seq_start,
400 .stop = osc_rpc_stats_seq_stop,
401 .next = osc_rpc_stats_seq_next,
402 .show = osc_rpc_stats_seq_show,
405 static int osc_rpc_stats_seq_open(struct inode *inode, struct file *file)
407 struct proc_dir_entry *dp = inode->u.generic_ip;
408 struct seq_file *seq;
411 rc = seq_open(file, &osc_rpc_stats_seq_sops);
414 seq = file->private_data;
415 seq->private = dp->data;
419 static ssize_t osc_rpc_stats_seq_write(struct file *file, const char *buf,
420 size_t len, loff_t *off)
422 struct seq_file *seq = file->private_data;
423 struct obd_device *dev = seq->private;
424 struct client_obd *cli = &dev->u.cli;
426 lprocfs_oh_clear(&cli->cl_read_rpc_hist);
427 lprocfs_oh_clear(&cli->cl_write_rpc_hist);
428 lprocfs_oh_clear(&cli->cl_read_page_hist);
429 lprocfs_oh_clear(&cli->cl_write_page_hist);
434 struct file_operations osc_rpc_stats_fops = {
435 .open = osc_rpc_stats_seq_open,
437 .write = osc_rpc_stats_seq_write,
439 .release = seq_release,
442 int lproc_osc_attach_seqstat(struct obd_device *dev)
444 return lprocfs_obd_seq_create(dev, "rpc_stats", 0444,
445 &osc_rpc_stats_fops, dev);
450 LPROCFS_INIT_VARS(osc,lprocfs_module_vars, lprocfs_obd_vars)