Commit | Line | Data |
---|---|---|
1da177e4 | 1 | /* |
1da177e4 LT |
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 | |
70f23fd6 | 11 | * io <bytes-read> <bytes-written> |
1da177e4 LT |
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 | ||
1da177e4 | 24 | #include <linux/seq_file.h> |
1da177e4 | 25 | #include <linux/module.h> |
1da177e4 | 26 | #include <linux/sunrpc/stats.h> |
1da177e4 LT |
27 | #include <linux/nfsd/stats.h> |
28 | ||
9a74af21 BH |
29 | #include "nfsd.h" |
30 | ||
1da177e4 LT |
31 | struct nfsd_stats nfsdstats; |
32 | struct svc_stat nfsd_svcstats = { | |
33 | .program = &nfsd_program, | |
34 | }; | |
35 | ||
36 | static int nfsd_proc_show(struct seq_file *seq, void *v) | |
37 | { | |
38 | int i; | |
39 | ||
40 | seq_printf(seq, "rc %u %u %u\nfh %u %u %u %u %u\nio %u %u\n", | |
41 | nfsdstats.rchits, | |
42 | nfsdstats.rcmisses, | |
43 | nfsdstats.rcnocache, | |
44 | nfsdstats.fh_stale, | |
45 | nfsdstats.fh_lookup, | |
46 | nfsdstats.fh_anon, | |
47 | nfsdstats.fh_nocache_dir, | |
48 | nfsdstats.fh_nocache_nondir, | |
49 | nfsdstats.io_read, | |
50 | nfsdstats.io_write); | |
51 | /* thread usage: */ | |
52 | seq_printf(seq, "th %u %u", nfsdstats.th_cnt, nfsdstats.th_fullcnt); | |
53 | for (i=0; i<10; i++) { | |
54 | unsigned int jifs = nfsdstats.th_usage[i]; | |
55 | unsigned int sec = jifs / HZ, msec = (jifs % HZ)*1000/HZ; | |
56 | seq_printf(seq, " %u.%03u", sec, msec); | |
57 | } | |
58 | ||
59 | /* newline and ra-cache */ | |
60 | seq_printf(seq, "\nra %u", nfsdstats.ra_size); | |
61 | for (i=0; i<11; i++) | |
62 | seq_printf(seq, " %u", nfsdstats.ra_depth[i]); | |
63 | seq_putc(seq, '\n'); | |
64 | ||
65 | /* show my rpc info */ | |
66 | svc_seq_show(seq, &nfsd_svcstats); | |
67 | ||
e2b20950 SA |
68 | #ifdef CONFIG_NFSD_V4 |
69 | /* Show count for individual nfsv4 operations */ | |
70 | /* Writing operation numbers 0 1 2 also for maintaining uniformity */ | |
71 | seq_printf(seq,"proc4ops %u", LAST_NFS4_OP + 1); | |
72 | for (i = 0; i <= LAST_NFS4_OP; i++) | |
73 | seq_printf(seq, " %u", nfsdstats.nfs4_opcount[i]); | |
74 | ||
75 | seq_putc(seq, '\n'); | |
76 | #endif | |
77 | ||
1da177e4 LT |
78 | return 0; |
79 | } | |
80 | ||
81 | static int nfsd_proc_open(struct inode *inode, struct file *file) | |
82 | { | |
83 | return single_open(file, nfsd_proc_show, NULL); | |
84 | } | |
85 | ||
4b6f5d20 | 86 | static const struct file_operations nfsd_proc_fops = { |
1da177e4 LT |
87 | .owner = THIS_MODULE, |
88 | .open = nfsd_proc_open, | |
89 | .read = seq_read, | |
90 | .llseek = seq_lseek, | |
91 | .release = single_release, | |
92 | }; | |
93 | ||
94 | void | |
95 | nfsd_stat_init(void) | |
96 | { | |
97 | svc_proc_register(&nfsd_svcstats, &nfsd_proc_fops); | |
98 | } | |
99 | ||
100 | void | |
101 | nfsd_stat_shutdown(void) | |
102 | { | |
103 | svc_proc_unregister("nfsd"); | |
104 | } |