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/*
Coda: an Experimental Distributed File System
Release 3.1
Copyright (c) 1987-1998 Carnegie Mellon University
All Rights Reserved
Permission to use, copy, modify and distribute this software and its
documentation is hereby granted, provided that both the copyright
notice and this permission notice appear in all copies of the
software, derivative works or modified versions, and any portions
thereof, and that both notices appear in supporting documentation, and
that credit is given to Carnegie Mellon University in all documents
and publicity pertaining to direct or indirect use of this code or its
derivatives.
CODA IS AN EXPERIMENTAL SOFTWARE SYSTEM AND IS KNOWN TO HAVE BUGS,
SOME OF WHICH MAY HAVE SERIOUS CONSEQUENCES. CARNEGIE MELLON ALLOWS
FREE USE OF THIS SOFTWARE IN ITS "AS IS" CONDITION. CARNEGIE MELLON
DISCLAIMS ANY LIABILITY OF ANY KIND FOR ANY DAMAGES WHATSOEVER
RESULTING DIRECTLY OR INDIRECTLY FROM THE USE OF THIS SOFTWARE OR OF
ANY DERIVATIVE WORK.
Carnegie Mellon encourages users of this software to return any
improvements or extensions that they make, and to grant Carnegie
Mellon the rights to redistribute these changes without encumbrance.
*/
/* $Header: /afs/cs/project/coda-src/cvs/coda/kernel-src/vfs/freebsd/cfs/coda_opstats.h,v 1.5 1998/08/18 17:05:25 rvb Exp $ */
/*
* operation stats: what the minicache can intercept that
* *isn't* seen by venus. These stats are kept to augment
* the stats maintained by the Volume-Session mechanism.
*/
/* vfsops:
* mount: not currently bounced to Venus
* umount: nope
* root: only first call, rest is cached.
* statfs: none (bogus)
* sync: none (bogus)
* vget: all
*/
#define CFS_MOUNT_STATS 0
#define CFS_UMOUNT_STATS 1
#define CFS_ROOT_STATS 2
#define CFS_STATFS_STATS 3
#define CFS_SYNC_STATS 4
#define CFS_VGET_STATS 5
#define CFS_VFSOPS_SIZE 6
/* vnodeops:
* open: all to venus
* close: all to venus
* rdrw: bogus. Maybe redirected to UFS.
* May call open/close for internal opens/closes
* (Does exec not call open?)
* ioctl: causes a lookupname
* passes through
* select: can't get there from here.
* getattr: can be satsified by cache
* setattr: all go through
* access: can be satisfied by cache
* readlink: can be satisfied by cache
* fsync: passes through
* inactive: passes through
* lookup: can be satisfied by cache
* create: passes through
* remove: passes through
* link: passes through
* rename: passes through
* mkdir: passes through
* rmdir: passes through
* symlink: passes through
* readdir: may be redirected to UFS
* may cause an "internal" open/close
*/
#define CFS_OPEN_STATS 0
#define CFS_CLOSE_STATS 1
#define CFS_RDWR_STATS 2
#define CFS_IOCTL_STATS 3
#define CFS_SELECT_STATS 4
#define CFS_GETATTR_STATS 5
#define CFS_SETATTR_STATS 6
#define CFS_ACCESS_STATS 7
#define CFS_READLINK_STATS 8
#define CFS_FSYNC_STATS 9
#define CFS_INACTIVE_STATS 10
#define CFS_LOOKUP_STATS 11
#define CFS_CREATE_STATS 12
#define CFS_REMOVE_STATS 13
#define CFS_LINK_STATS 14
#define CFS_RENAME_STATS 15
#define CFS_MKDIR_STATS 16
#define CFS_RMDIR_STATS 17
#define CFS_SYMLINK_STATS 18
#define CFS_READDIR_STATS 19
#define CFS_VNODEOPS_SIZE 20
/*
* I propose the following structres:
*/
struct cfs_op_stats {
int opcode; /* vfs opcode */
long entries; /* number of times call attempted */
long sat_intrn; /* number of times call satisfied by cache */
long unsat_intrn; /* number of times call failed in cache, but
was not bounced to venus proper. */
long gen_intrn; /* number of times call generated internally */
/* (do we need that?) */
};
/*
* With each call to the minicache, we'll bump the counters whenver
* a call is satisfied internally (through the cache or through a
* redirect), and whenever an operation is caused internally.
* Then, we can add the total operations caught by the minicache
* to the world-wide totals, and leave a caveat for the specific
* graphs later.
*/
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