| /* |
| * linux/include/linux/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 |
| |
| #include <linux/nfs4.h> |
| |
| /* thread usage wraps very million seconds (approx one fortnight) */ |
| #define NFSD_USAGE_WRAP (HZ*1000000) |
| |
| #ifdef __KERNEL__ |
| |
| 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 */ |
| #ifdef CONFIG_NFSD_V4 |
| unsigned int nfs4_opcount[LAST_NFS4_OP + 1]; /* count of individual nfsv4 operations */ |
| #endif |
| |
| }; |
| |
| |
| 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 */ |
