1*53ee8cc1Swenshuai.xi /* 2*53ee8cc1Swenshuai.xi * linux/include/linux/nfsd/stats.h 3*53ee8cc1Swenshuai.xi * 4*53ee8cc1Swenshuai.xi * Statistics for NFS server. 5*53ee8cc1Swenshuai.xi * 6*53ee8cc1Swenshuai.xi * Copyright (C) 1995, 1996 Olaf Kirch <okir@monad.swb.de> 7*53ee8cc1Swenshuai.xi */ 8*53ee8cc1Swenshuai.xi 9*53ee8cc1Swenshuai.xi #ifndef LINUX_NFSD_STATS_H 10*53ee8cc1Swenshuai.xi #define LINUX_NFSD_STATS_H 11*53ee8cc1Swenshuai.xi 12*53ee8cc1Swenshuai.xi #include <linux/nfs4.h> 13*53ee8cc1Swenshuai.xi 14*53ee8cc1Swenshuai.xi struct nfsd_stats { 15*53ee8cc1Swenshuai.xi unsigned int rchits; /* repcache hits */ 16*53ee8cc1Swenshuai.xi unsigned int rcmisses; /* repcache hits */ 17*53ee8cc1Swenshuai.xi unsigned int rcnocache; /* uncached reqs */ 18*53ee8cc1Swenshuai.xi unsigned int fh_stale; /* FH stale error */ 19*53ee8cc1Swenshuai.xi unsigned int fh_lookup; /* dentry cached */ 20*53ee8cc1Swenshuai.xi unsigned int fh_anon; /* anon file dentry returned */ 21*53ee8cc1Swenshuai.xi unsigned int fh_nocache_dir; /* filehandle not found in dcache */ 22*53ee8cc1Swenshuai.xi unsigned int fh_nocache_nondir; /* filehandle not found in dcache */ 23*53ee8cc1Swenshuai.xi unsigned int io_read; /* bytes returned to read requests */ 24*53ee8cc1Swenshuai.xi unsigned int io_write; /* bytes passed in write requests */ 25*53ee8cc1Swenshuai.xi unsigned int th_cnt; /* number of available threads */ 26*53ee8cc1Swenshuai.xi unsigned int th_usage[10]; /* number of ticks during which n perdeciles 27*53ee8cc1Swenshuai.xi * of available threads were in use */ 28*53ee8cc1Swenshuai.xi unsigned int th_fullcnt; /* number of times last free thread was used */ 29*53ee8cc1Swenshuai.xi unsigned int ra_size; /* size of ra cache */ 30*53ee8cc1Swenshuai.xi unsigned int ra_depth[11]; /* number of times ra entry was found that deep 31*53ee8cc1Swenshuai.xi * in the cache (10percentiles). [10] = not found */ 32*53ee8cc1Swenshuai.xi #ifdef CONFIG_NFSD_V4 33*53ee8cc1Swenshuai.xi unsigned int nfs4_opcount[LAST_NFS4_OP + 1]; /* count of individual nfsv4 operations */ 34*53ee8cc1Swenshuai.xi #endif 35*53ee8cc1Swenshuai.xi 36*53ee8cc1Swenshuai.xi }; 37*53ee8cc1Swenshuai.xi 38*53ee8cc1Swenshuai.xi /* thread usage wraps very million seconds (approx one fortnight) */ 39*53ee8cc1Swenshuai.xi #define NFSD_USAGE_WRAP (HZ*1000000) 40*53ee8cc1Swenshuai.xi 41*53ee8cc1Swenshuai.xi #endif /* LINUX_NFSD_STATS_H */ 42