2 * linux/include/nfsd/stats.h
4 * Statistics for NFS server.
6 * Copyright (C) 1995, 1996 Olaf Kirch <okir@monad.swb.de>
9 #ifndef LINUX_NFSD_STATS_H
10 #define LINUX_NFSD_STATS_H
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 */
32 /* thread usage wraps very million seconds (approx one fortnight) */
33 #define NFSD_USAGE_WRAP (HZ*1000000)
37 extern struct nfsd_stats nfsdstats;
38 extern struct svc_stat nfsd_svcstats;
40 void nfsd_stat_init(void);
41 void nfsd_stat_shutdown(void);
43 #endif /* __KERNEL__ */
44 #endif /* LINUX_NFSD_STATS_H */