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1da177e4 LT |
1 | /* |
2 | * linux/include/nfsd/stats.h | |
3 | * | |
4 | * Statistics for NFS server. | |
5 | * | |
6 | * Copyright (C) 1995, 1996 Olaf Kirch <okir@monad.swb.de> | |
7 | */ | |
8 | ||
9 | #ifndef LINUX_NFSD_STATS_H | |
10 | #define LINUX_NFSD_STATS_H | |
11 | ||
12 | struct nfsd_stats { | |
13 | unsigned int rchits; /* repcache hits */ | |
14 | unsigned int rcmisses; /* repcache hits */ | |
15 | unsigned int rcnocache; /* uncached reqs */ | |
16 | unsigned int fh_stale; /* FH stale error */ | |
17 | unsigned int fh_lookup; /* dentry cached */ | |
18 | unsigned int fh_anon; /* anon file dentry returned */ | |
19 | unsigned int fh_nocache_dir; /* filehandle not found in dcache */ | |
20 | unsigned int fh_nocache_nondir; /* filehandle not found in dcache */ | |
21 | unsigned int io_read; /* bytes returned to read requests */ | |
22 | unsigned int io_write; /* bytes passed in write requests */ | |
23 | unsigned int th_cnt; /* number of available threads */ | |
24 | unsigned int th_usage[10]; /* number of ticks during which n perdeciles | |
25 | * of available threads were in use */ | |
26 | unsigned int th_fullcnt; /* number of times last free thread was used */ | |
27 | unsigned int ra_size; /* size of ra cache */ | |
28 | unsigned int ra_depth[11]; /* number of times ra entry was found that deep | |
29 | * in the cache (10percentiles). [10] = not found */ | |
30 | }; | |
31 | ||
32 | /* thread usage wraps very million seconds (approx one fortnight) */ | |
33 | #define NFSD_USAGE_WRAP (HZ*1000000) | |
34 | ||
35 | #ifdef __KERNEL__ | |
36 | ||
37 | extern struct nfsd_stats nfsdstats; | |
38 | extern struct svc_stat nfsd_svcstats; | |
39 | ||
40 | void nfsd_stat_init(void); | |
41 | void nfsd_stat_shutdown(void); | |
42 | ||
43 | #endif /* __KERNEL__ */ | |
44 | #endif /* LINUX_NFSD_STATS_H */ |