| Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 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 */ |