diff options
Diffstat (limited to 'include/linux/nfsd/stats.h')
| -rw-r--r-- | include/linux/nfsd/stats.h | 44 |
1 files changed, 44 insertions, 0 deletions
diff --git a/include/linux/nfsd/stats.h b/include/linux/nfsd/stats.h new file mode 100644 index 000000000000..b6f1e0cda4f2 --- /dev/null +++ b/include/linux/nfsd/stats.h @@ -0,0 +1,44 @@ +/* + * linux/include/nfsd/stats.h + * + * Statistics for NFS server. + * + * Copyright (C) 1995, 1996 Olaf Kirch <okir@monad.swb.de> + */ + +#ifndef LINUX_NFSD_STATS_H +#define LINUX_NFSD_STATS_H + +struct nfsd_stats { + unsigned int rchits; /* repcache hits */ + unsigned int rcmisses; /* repcache hits */ + unsigned int rcnocache; /* uncached reqs */ + unsigned int fh_stale; /* FH stale error */ + unsigned int fh_lookup; /* dentry cached */ + unsigned int fh_anon; /* anon file dentry returned */ + unsigned int fh_nocache_dir; /* filehandle not found in dcache */ + unsigned int fh_nocache_nondir; /* filehandle not found in dcache */ + unsigned int io_read; /* bytes returned to read requests */ + unsigned int io_write; /* bytes passed in write requests */ + unsigned int th_cnt; /* number of available threads */ + unsigned int th_usage[10]; /* number of ticks during which n perdeciles + * of available threads were in use */ + unsigned int th_fullcnt; /* number of times last free thread was used */ + unsigned int ra_size; /* size of ra cache */ + unsigned int ra_depth[11]; /* number of times ra entry was found that deep + * in the cache (10percentiles). [10] = not found */ +}; + +/* thread usage wraps very million seconds (approx one fortnight) */ +#define NFSD_USAGE_WRAP (HZ*1000000) + +#ifdef __KERNEL__ + +extern struct nfsd_stats nfsdstats; +extern struct svc_stat nfsd_svcstats; + +void nfsd_stat_init(void); +void nfsd_stat_shutdown(void); + +#endif /* __KERNEL__ */ +#endif /* LINUX_NFSD_STATS_H */ |