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1 /* |
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2 * linux/include/linux/nfsd/stats.h |
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3 * |
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4 * Statistics for NFS server. |
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5 * |
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6 * Copyright (C) 1995, 1996 Olaf Kirch <okir@monad.swb.de> |
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7 */ |
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8 |
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9 #ifndef LINUX_NFSD_STATS_H |
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10 #define LINUX_NFSD_STATS_H |
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11 |
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12 #include <linux/nfs4.h> |
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13 |
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14 struct nfsd_stats { |
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15 unsigned int rchits; /* repcache hits */ |
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16 unsigned int rcmisses; /* repcache hits */ |
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17 unsigned int rcnocache; /* uncached reqs */ |
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18 unsigned int fh_stale; /* FH stale error */ |
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19 unsigned int fh_lookup; /* dentry cached */ |
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20 unsigned int fh_anon; /* anon file dentry returned */ |
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21 unsigned int fh_nocache_dir; /* filehandle not found in dcache */ |
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22 unsigned int fh_nocache_nondir; /* filehandle not found in dcache */ |
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23 unsigned int io_read; /* bytes returned to read requests */ |
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24 unsigned int io_write; /* bytes passed in write requests */ |
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25 unsigned int th_cnt; /* number of available threads */ |
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26 unsigned int th_usage[10]; /* number of ticks during which n perdeciles |
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27 * of available threads were in use */ |
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28 unsigned int th_fullcnt; /* number of times last free thread was used */ |
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29 unsigned int ra_size; /* size of ra cache */ |
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30 unsigned int ra_depth[11]; /* number of times ra entry was found that deep |
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31 * in the cache (10percentiles). [10] = not found */ |
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32 #ifdef CONFIG_NFSD_V4 |
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33 unsigned int nfs4_opcount[LAST_NFS4_OP + 1]; /* count of individual nfsv4 operations */ |
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34 #endif |
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35 |
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36 }; |
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37 |
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38 /* thread usage wraps very million seconds (approx one fortnight) */ |
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39 #define NFSD_USAGE_WRAP (HZ*1000000) |
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40 |
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41 #ifdef __KERNEL__ |
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42 |
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43 extern struct nfsd_stats nfsdstats; |
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44 extern struct svc_stat nfsd_svcstats; |
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45 |
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46 void nfsd_stat_init(void); |
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47 void nfsd_stat_shutdown(void); |
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48 |
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49 #endif /* __KERNEL__ */ |
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50 #endif /* LINUX_NFSD_STATS_H */ |