/include/linux/nfsd/stats.h

https://bitbucket.org/thekraven/iscream_thunderc-2.6.35 · C++ Header · 51 lines · 31 code · 10 blank · 10 comment · 0 complexity · fae6664f1f828fff73094b3bdba1352e MD5 · raw file 

    

  1. /*
    2. 

  2.  * linux/include/linux/nfsd/stats.h
    3. 

  3.  *
    4. 

  4.  * Statistics for NFS server.
    5. 

  5.  *
    6. 

  6.  * Copyright (C) 1995, 1996 Olaf Kirch <okir@monad.swb.de>
    7. 

  7.  */
    8. 

  8. 

  9. #ifndef LINUX_NFSD_STATS_H
    10. 

  10. #define LINUX_NFSD_STATS_H
    11. 

  11. 

  12. #include <linux/nfs4.h>
    13. 

  13. 

  14. /* thread usage wraps very million seconds (approx one fortnight) */
    15. 

  15. #define	NFSD_USAGE_WRAP	(HZ*1000000)
    16. 

  16. 

  17. #ifdef __KERNEL__
    18. 

  18. 

  19. struct nfsd_stats {
    20. 

  20. 	unsigned int	rchits;		/* repcache hits */
    21. 

  21. 	unsigned int	rcmisses;	/* repcache hits */
    22. 

  22. 	unsigned int	rcnocache;	/* uncached reqs */
    23. 

  23. 	unsigned int	fh_stale;	/* FH stale error */
    24. 

  24. 	unsigned int	fh_lookup;	/* dentry cached */
    25. 

  25. 	unsigned int	fh_anon;	/* anon file dentry returned */
    26. 

  26. 	unsigned int	fh_nocache_dir;	/* filehandle not found in dcache */
    27. 

  27. 	unsigned int	fh_nocache_nondir;	/* filehandle not found in dcache */
    28. 

  28. 	unsigned int	io_read;	/* bytes returned to read requests */
    29. 

  29. 	unsigned int	io_write;	/* bytes passed in write requests */
    30. 

  30. 	unsigned int	th_cnt;		/* number of available threads */
    31. 

  31. 	unsigned int	th_usage[10];	/* number of ticks during which n perdeciles
    32. 

  32. 					 * of available threads were in use */
    33. 

  33. 	unsigned int	th_fullcnt;	/* number of times last free thread was used */
    34. 

  34. 	unsigned int	ra_size;	/* size of ra cache */
    35. 

  35. 	unsigned int	ra_depth[11];	/* number of times ra entry was found that deep
    36. 

  36. 					 * in the cache (10percentiles). [10] = not found */
    37. 

  37. #ifdef CONFIG_NFSD_V4
    38. 

  38. 	unsigned int	nfs4_opcount[LAST_NFS4_OP + 1];	/* count of individual nfsv4 operations */
    39. 

  39. #endif
    40. 

  40. 

  41. };
    42. 

  42. 

  43. 

  44. extern struct nfsd_stats	nfsdstats;
    45. 

  45. extern struct svc_stat		nfsd_svcstats;
    46. 

  46. 

  47. void	nfsd_stat_init(void);
    48. 

  48. void	nfsd_stat_shutdown(void);
    49. 

  49. 

  50. #endif /* __KERNEL__ */
    51. 

  51. #endif /* LINUX_NFSD_STATS_H */
    52.