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1/*
2 * procfs-based user access to knfsd statistics
3 *
4 * /proc/net/rpc/nfsd
5 *
6 * Format:
7 * rc <hits> <misses> <nocache>
8 * Statistsics for the reply cache
9 * fh <stale> <total-lookups> <anonlookups> <dir-not-in-dcache> <nondir-not-in-dcache>
10 * statistics for filehandle lookup
11 * io <bytes-read> <bytes-written>
12 * statistics for IO throughput
13 * th <threads> <fullcnt> <10%-20%> <20%-30%> ... <90%-100%> <100%>
14 * time (seconds) when nfsd thread usage above thresholds
15 * and number of times that all threads were in use
16 * ra cache-size <10% <20% <30% ... <100% not-found
17 * number of times that read-ahead entry was found that deep in
18 * the cache.
19 * plus generic RPC stats (see net/sunrpc/stats.c)
20 *
21 * Copyright (C) 1995, 1996, 1997 Olaf Kirch <okir@monad.swb.de>
22 */
23
24#include <linux/seq_file.h>
25#include <linux/module.h>
26#include <linux/sunrpc/stats.h>
27#include <linux/nfsd/stats.h>
28#include <net/net_namespace.h>
29
30#include "nfsd.h"
31
32struct nfsd_stats nfsdstats;
33struct svc_stat nfsd_svcstats = {
34 .program = &nfsd_program,
35};
36
37static int nfsd_proc_show(struct seq_file *seq, void *v)
38{
39 int i;
40
41 seq_printf(seq, "rc %u %u %u\nfh %u %u %u %u %u\nio %u %u\n",
42 nfsdstats.rchits,
43 nfsdstats.rcmisses,
44 nfsdstats.rcnocache,
45 nfsdstats.fh_stale,
46 nfsdstats.fh_lookup,
47 nfsdstats.fh_anon,
48 nfsdstats.fh_nocache_dir,
49 nfsdstats.fh_nocache_nondir,
50 nfsdstats.io_read,
51 nfsdstats.io_write);
52 /* thread usage: */
53 seq_printf(seq, "th %u %u", nfsdstats.th_cnt, nfsdstats.th_fullcnt);
54 for (i=0; i<10; i++) {
55 unsigned int jifs = nfsdstats.th_usage[i];
56 unsigned int sec = jifs / HZ, msec = (jifs % HZ)*1000/HZ;
57 seq_printf(seq, " %u.%03u", sec, msec);
58 }
59
60 /* newline and ra-cache */
61 seq_printf(seq, "\nra %u", nfsdstats.ra_size);
62 for (i=0; i<11; i++)
63 seq_printf(seq, " %u", nfsdstats.ra_depth[i]);
64 seq_putc(seq, '\n');
65
66 /* show my rpc info */
67 svc_seq_show(seq, &nfsd_svcstats);
68
69#ifdef CONFIG_NFSD_V4
70 /* Show count for individual nfsv4 operations */
71 /* Writing operation numbers 0 1 2 also for maintaining uniformity */
72 seq_printf(seq,"proc4ops %u", LAST_NFS4_OP + 1);
73 for (i = 0; i <= LAST_NFS4_OP; i++)
74 seq_printf(seq, " %u", nfsdstats.nfs4_opcount[i]);
75
76 seq_putc(seq, '\n');
77#endif
78
79 return 0;
80}
81
82static int nfsd_proc_open(struct inode *inode, struct file *file)
83{
84 return single_open(file, nfsd_proc_show, NULL);
85}
86
87static const struct file_operations nfsd_proc_fops = {
88 .owner = THIS_MODULE,
89 .open = nfsd_proc_open,
90 .read = seq_read,
91 .llseek = seq_lseek,
92 .release = single_release,
93};
94
95void
96nfsd_stat_init(void)
97{
98 svc_proc_register(&init_net, &nfsd_svcstats, &nfsd_proc_fops);
99}
100
101void
102nfsd_stat_shutdown(void)
103{
104 svc_proc_unregister(&init_net, "nfsd");
105}
1/*
2 * procfs-based user access to knfsd statistics
3 *
4 * /proc/net/rpc/nfsd
5 *
6 * Format:
7 * rc <hits> <misses> <nocache>
8 * Statistsics for the reply cache
9 * fh <stale> <total-lookups> <anonlookups> <dir-not-in-dcache> <nondir-not-in-dcache>
10 * statistics for filehandle lookup
11 * io <bytes-read> <bytes-written>
12 * statistics for IO throughput
13 * th <threads> <fullcnt> <10%-20%> <20%-30%> ... <90%-100%> <100%>
14 * time (seconds) when nfsd thread usage above thresholds
15 * and number of times that all threads were in use
16 * ra cache-size <10% <20% <30% ... <100% not-found
17 * number of times that read-ahead entry was found that deep in
18 * the cache.
19 * plus generic RPC stats (see net/sunrpc/stats.c)
20 *
21 * Copyright (C) 1995, 1996, 1997 Olaf Kirch <okir@monad.swb.de>
22 */
23
24#include <linux/seq_file.h>
25#include <linux/module.h>
26#include <linux/sunrpc/stats.h>
27#include <linux/nfsd/stats.h>
28#include <net/net_namespace.h>
29
30#include "nfsd.h"
31
32struct nfsd_stats nfsdstats;
33struct svc_stat nfsd_svcstats = {
34 .program = &nfsd_program,
35};
36
37static int nfsd_proc_show(struct seq_file *seq, void *v)
38{
39 int i;
40
41 seq_printf(seq, "rc %u %u %u\nfh %u %u %u %u %u\nio %u %u\n",
42 nfsdstats.rchits,
43 nfsdstats.rcmisses,
44 nfsdstats.rcnocache,
45 nfsdstats.fh_stale,
46 nfsdstats.fh_lookup,
47 nfsdstats.fh_anon,
48 nfsdstats.fh_nocache_dir,
49 nfsdstats.fh_nocache_nondir,
50 nfsdstats.io_read,
51 nfsdstats.io_write);
52 /* thread usage: */
53 seq_printf(seq, "th %u %u", nfsdstats.th_cnt, nfsdstats.th_fullcnt);
54 for (i=0; i<10; i++) {
55 unsigned int jifs = nfsdstats.th_usage[i];
56 unsigned int sec = jifs / HZ, msec = (jifs % HZ)*1000/HZ;
57 seq_printf(seq, " %u.%03u", sec, msec);
58 }
59
60 /* newline and ra-cache */
61 seq_printf(seq, "\nra %u", nfsdstats.ra_size);
62 for (i=0; i<11; i++)
63 seq_printf(seq, " %u", nfsdstats.ra_depth[i]);
64 seq_putc(seq, '\n');
65
66 /* show my rpc info */
67 svc_seq_show(seq, &nfsd_svcstats);
68
69#ifdef CONFIG_NFSD_V4
70 /* Show count for individual nfsv4 operations */
71 /* Writing operation numbers 0 1 2 also for maintaining uniformity */
72 seq_printf(seq,"proc4ops %u", LAST_NFS4_OP + 1);
73 for (i = 0; i <= LAST_NFS4_OP; i++)
74 seq_printf(seq, " %u", nfsdstats.nfs4_opcount[i]);
75
76 seq_putc(seq, '\n');
77#endif
78
79 return 0;
80}
81
82static int nfsd_proc_open(struct inode *inode, struct file *file)
83{
84 return single_open(file, nfsd_proc_show, NULL);
85}
86
87static const struct file_operations nfsd_proc_fops = {
88 .owner = THIS_MODULE,
89 .open = nfsd_proc_open,
90 .read = seq_read,
91 .llseek = seq_lseek,
92 .release = single_release,
93};
94
95void
96nfsd_stat_init(void)
97{
98 svc_proc_register(&init_net, &nfsd_svcstats, &nfsd_proc_fops);
99}
100
101void
102nfsd_stat_shutdown(void)
103{
104 svc_proc_unregister(&init_net, "nfsd");
105}