1 /* 2 * linux/include/nfsd/stats.h 3 * 4 * Statistics for NFS server. 5 * 6 * Copyright (C) 1995, 1996 Olaf Kirch <okir (at) 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 struct nfsd_stats { 15 unsigned int rchits; /* repcache hits */ 16 unsigned int rcmisses; /* repcache hits */ 17 unsigned int rcnocache; /* uncached reqs */ 18 unsigned int fh_stale; /* FH stale error */ 19 unsigned int fh_lookup; /* dentry cached */ 20 unsigned int fh_anon; /* anon file dentry returned */ 21 unsigned int fh_nocache_dir; /* filehandle not found in dcache */ 22 unsigned int fh_nocache_nondir; /* filehandle not found in dcache */ 23 unsigned int io_read; /* bytes returned to read requests */ 24 unsigned int io_write; /* bytes passed in write requests */ 25 unsigned int th_cnt; /* number of available threads */ 26 unsigned int th_usage[10]; /* number of ticks during which n perdeciles 27 * of available threads were in use */ 28 unsigned int th_fullcnt; /* number of times last free thread was used */ 29 unsigned int ra_size; /* size of ra cache */ 30 unsigned int ra_depth[11]; /* number of times ra entry was found that deep 31 * in the cache (10percentiles). [10] = not found */ 32 #ifdef CONFIG_NFSD_V4 33 unsigned int nfs4_opcount[LAST_NFS4_OP + 1]; /* count of individual nfsv4 operations */ 34 #endif 35 36 }; 37 38 /* thread usage wraps very million seconds (approx one fortnight) */ 39 #define NFSD_USAGE_WRAP (HZ*1000000) 40 41 #ifdef __KERNEL__ 42 43 extern struct nfsd_stats nfsdstats; 44 extern struct svc_stat nfsd_svcstats; 45 46 void nfsd_stat_init(void); 47 void nfsd_stat_shutdown(void); 48 49 #endif /* __KERNEL__ */ 50 #endif /* LINUX_NFSD_STATS_H */ 51
