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 > PTLRPC_MAX_BRW_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;
113 spin_lock(&cli->cl_loi_list_lock);
114 val = cli->cl_dirty_max >> 20;
115 spin_unlock(&cli->cl_loi_list_lock);
117 return snprintf(page, count, "%u\n", val);
120 int osc_wr_max_dirty_mb(struct file *file, const char *buffer,
121 unsigned long count, void *data)
123 struct obd_device *dev = data;
124 struct client_obd *cli = &dev->u.cli;
127 rc = lprocfs_write_helper(buffer, count, &val);
131 if (val < 0 || val > OSC_MAX_DIRTY_MB_MAX ||
132 val > num_physpages >> (20 - PAGE_SHIFT - 2)) /* 1/4 of RAM */
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 static struct lprocfs_vars lprocfs_obd_vars[] = {
170 { "uuid", lprocfs_rd_uuid, 0, 0 },
171 { "blocksize", lprocfs_rd_blksize, 0, 0 },
172 { "kbytestotal", lprocfs_rd_kbytestotal, 0, 0 },
173 { "kbytesfree", lprocfs_rd_kbytesfree, 0, 0 },
174 { "kbytesavail", lprocfs_rd_kbytesavail, 0, 0 },
175 { "filestotal", lprocfs_rd_filestotal, 0, 0 },
176 { "filesfree", lprocfs_rd_filesfree, 0, 0 },
177 //{ "filegroups", lprocfs_rd_filegroups, 0, 0 },
178 { "ost_server_uuid", lprocfs_rd_server_uuid, 0, 0 },
179 { "ost_conn_uuid", lprocfs_rd_conn_uuid, 0, 0 },
180 { "max_pages_per_rpc", osc_rd_max_pages_per_rpc,
181 osc_wr_max_pages_per_rpc, 0 },
182 { "max_rpcs_in_flight", osc_rd_max_rpcs_in_flight,
183 osc_wr_max_rpcs_in_flight, 0 },
184 { "max_dirty_mb", osc_rd_max_dirty_mb, osc_wr_max_dirty_mb, 0 },
185 { "cur_dirty_bytes", osc_rd_cur_dirty_bytes, 0, 0 },
186 { "cur_grant_bytes", osc_rd_cur_grant_bytes, 0, 0 },
190 static struct lprocfs_vars lprocfs_module_vars[] = {
191 { "num_refs", lprocfs_rd_numrefs, 0, 0 },
195 #define pct(a,b) (b ? a * 100 / b : 0)
197 #define PRINTF_STIME(stime) (unsigned long)(stime)->st_num, \
198 lprocfs_stime_avg_ms(stime), lprocfs_stime_avg_us(stime)
201 static int osc_rpc_stats_seq_show(struct seq_file *seq, void *v)
204 struct obd_device *dev = seq->private;
205 struct client_obd *cli = &dev->u.cli;
207 unsigned long read_tot = 0, write_tot = 0, read_cum, write_cum;
210 do_gettimeofday(&now);
212 spin_lock_irqsave(&cli->cl_loi_list_lock, flags);
214 seq_printf(seq, "snapshot_time: %lu.%lu (secs.usecs)\n",
215 now.tv_sec, now.tv_usec);
217 seq_printf(seq, "read RPCs in flight: %d\n",
218 cli->cl_r_in_flight);
219 seq_printf(seq, "write RPCs in flight: %d\n",
220 cli->cl_w_in_flight);
221 seq_printf(seq, "pending write pages: %d\n",
222 cli->cl_pending_w_pages);
223 seq_printf(seq, "pending read pages: %d\n",
224 cli->cl_pending_r_pages);
227 seq_printf(seq, "\n\t\t\tread\t\t\twrite\n");
228 seq_printf(seq, "pages per rpc rpcs %% cum %% |");
229 seq_printf(seq, " rpcs %% cum %%\n");
231 read_tot = lprocfs_oh_sum(&cli->cl_read_page_hist);
232 write_tot = lprocfs_oh_sum(&cli->cl_write_page_hist);
236 for (i = 0; i < OBD_HIST_MAX; i++) {
237 unsigned long r = cli->cl_read_page_hist.oh_buckets[i];
238 unsigned long w = cli->cl_write_page_hist.oh_buckets[i];
241 seq_printf(seq, "%d:\t\t%10lu %3lu %3lu | %10lu %3lu %3lu\n",
242 1 << i, r, pct(r, read_tot),
243 pct(read_cum, read_tot), w,
245 pct(write_cum, write_tot));
246 if (read_cum == read_tot && write_cum == write_tot)
250 seq_printf(seq, "\n\t\t\tread\t\t\twrite\n");
251 seq_printf(seq, "rpcs in flight rpcs %% cum %% |");
252 seq_printf(seq, " rpcs %% cum %%\n");
254 read_tot = lprocfs_oh_sum(&cli->cl_read_rpc_hist);
255 write_tot = lprocfs_oh_sum(&cli->cl_write_rpc_hist);
259 for (i = 0; i < OBD_HIST_MAX; i++) {
260 unsigned long r = cli->cl_read_rpc_hist.oh_buckets[i];
261 unsigned long w = cli->cl_write_rpc_hist.oh_buckets[i];
264 seq_printf(seq, "%d:\t\t%10lu %3lu %3lu | %10lu %3lu %3lu\n",
265 i, r, pct(r, read_tot),
266 pct(read_cum, read_tot), w,
268 pct(write_cum, write_tot));
269 if (read_cum == read_tot && write_cum == write_tot)
273 seq_printf(seq, "\nrpc service time: (rpcs, average ms)\n");
274 seq_printf(seq, "\tread\t%lu\t%lu.%04lu\n",
275 PRINTF_STIME(&cli->cl_read_stime));
276 seq_printf(seq, "\twrite\t%lu\t%lu.%04lu\n\n",
277 PRINTF_STIME(&cli->cl_write_stime));
279 seq_printf(seq, "app waiting: (num, average ms)\n");
280 seq_printf(seq, "\tenter cache\t%lu\t%lu.%04lu\n",
281 PRINTF_STIME(&cli->cl_enter_stime));
283 spin_unlock_irqrestore(&cli->cl_loi_list_lock, flags);
289 static void *osc_rpc_stats_seq_start(struct seq_file *p, loff_t *pos)
295 static void *osc_rpc_stats_seq_next(struct seq_file *p, void *v, loff_t *pos)
300 static void osc_rpc_stats_seq_stop(struct seq_file *p, void *v)
303 struct seq_operations osc_rpc_stats_seq_sops = {
304 .start = osc_rpc_stats_seq_start,
305 .stop = osc_rpc_stats_seq_stop,
306 .next = osc_rpc_stats_seq_next,
307 .show = osc_rpc_stats_seq_show,
310 static int osc_rpc_stats_seq_open(struct inode *inode, struct file *file)
312 struct proc_dir_entry *dp = PDE(inode);
313 struct seq_file *seq;
316 rc = seq_open(file, &osc_rpc_stats_seq_sops);
319 seq = file->private_data;
320 seq->private = dp->data;
324 static ssize_t osc_rpc_stats_seq_write(struct file *file, const char *buf,
325 size_t len, loff_t *off)
327 struct seq_file *seq = file->private_data;
328 struct obd_device *dev = seq->private;
329 struct client_obd *cli = &dev->u.cli;
331 lprocfs_oh_clear(&cli->cl_read_rpc_hist);
332 lprocfs_oh_clear(&cli->cl_write_rpc_hist);
333 lprocfs_oh_clear(&cli->cl_read_page_hist);
334 lprocfs_oh_clear(&cli->cl_write_page_hist);
336 memset(&cli->cl_read_stime, 0, sizeof(cli->cl_read_stime));
337 memset(&cli->cl_write_stime, 0, sizeof(cli->cl_write_stime));
338 memset(&cli->cl_enter_stime, 0, sizeof(cli->cl_enter_stime));
343 struct file_operations osc_rpc_stats_fops = {
344 .owner = THIS_MODULE,
345 .open = osc_rpc_stats_seq_open,
347 .write = osc_rpc_stats_seq_write,
349 .release = seq_release,
352 int lproc_osc_attach_seqstat(struct obd_device *dev)
354 return lprocfs_obd_seq_create(dev, "rpc_stats", 0444,
355 &osc_rpc_stats_fops, dev);
359 LPROCFS_INIT_VARS(osc, lprocfs_module_vars, lprocfs_obd_vars)