1 /* 2 * linux/include/linux/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 #include <linux/nfs4.h> 13 14 /* thread usage wraps very million seconds (approx one fortnight) */ 15 #define NFSD_USAGE_WRAP (HZ*1000000) 16 17 #ifdef __KERNEL__ 18 19 struct nfsd_stats { 20 unsigned int rchits; /* repcache hits */ 21 unsigned int rcmisses; /* repcache hits */ 22 unsigned int rcnocache; /* uncached reqs */ 23 unsigned int fh_stale; /* FH stale error */ 24 unsigned int fh_lookup; /* dentry cached */ 25 unsigned int fh_anon; /* anon file dentry returned */ 26 unsigned int fh_nocache_dir; /* filehandle not found in dcache */ 27 unsigned int fh_nocache_nondir; /* filehandle not found in dcache */ 28 unsigned int io_read; /* bytes returned to read requests */ 29 unsigned int io_write; /* bytes passed in write requests */ 30 unsigned int th_cnt; /* number of available threads */ 31 unsigned int th_usage[10]; /* number of ticks during which n perdeciles 32 * of available threads were in use */ 33 unsigned int th_fullcnt; /* number of times last free thread was used */ 34 unsigned int ra_size; /* size of ra cache */ 35 unsigned int ra_depth[11]; /* number of times ra entry was found that deep 36 * in the cache (10percentiles). [10] = not found */ 37 #ifdef CONFIG_NFSD_V4 38 unsigned int nfs4_opcount[LAST_NFS4_OP + 1]; /* count of individual nfsv4 operations */ 39 #endif 40 41 }; 42 43 44 extern struct nfsd_stats nfsdstats; 45 extern struct svc_stat nfsd_svcstats; 46 47 void nfsd_stat_init(void); 48 void nfsd_stat_shutdown(void); 49 50 #endif /* __KERNEL__ */ 51 #endif /* LINUX_NFSD_STATS_H */ 52