| 1 | /* $NetBSD: coda_opstats.h,v 1.6 2005/12/11 12:19:50 christos Exp $ */ |
| 2 | |
| 3 | /* |
| 4 | * |
| 5 | * Coda: an Experimental Distributed File System |
| 6 | * Release 3.1 |
| 7 | * |
| 8 | * Copyright (c) 1987-1998 Carnegie Mellon University |
| 9 | * All Rights Reserved |
| 10 | * |
| 11 | * Permission to use, copy, modify and distribute this software and its |
| 12 | * documentation is hereby granted, provided that both the copyright |
| 13 | * notice and this permission notice appear in all copies of the |
| 14 | * software, derivative works or modified versions, and any portions |
| 15 | * thereof, and that both notices appear in supporting documentation, and |
| 16 | * that credit is given to Carnegie Mellon University in all documents |
| 17 | * and publicity pertaining to direct or indirect use of this code or its |
| 18 | * derivatives. |
| 19 | * |
| 20 | * CODA IS AN EXPERIMENTAL SOFTWARE SYSTEM AND IS KNOWN TO HAVE BUGS, |
| 21 | * SOME OF WHICH MAY HAVE SERIOUS CONSEQUENCES. CARNEGIE MELLON ALLOWS |
| 22 | * FREE USE OF THIS SOFTWARE IN ITS "AS IS" CONDITION. CARNEGIE MELLON |
| 23 | * DISCLAIMS ANY LIABILITY OF ANY KIND FOR ANY DAMAGES WHATSOEVER |
| 24 | * RESULTING DIRECTLY OR INDIRECTLY FROM THE USE OF THIS SOFTWARE OR OF |
| 25 | * ANY DERIVATIVE WORK. |
| 26 | * |
| 27 | * Carnegie Mellon encourages users of this software to return any |
| 28 | * improvements or extensions that they make, and to grant Carnegie |
| 29 | * Mellon the rights to redistribute these changes without encumbrance. |
| 30 | * |
| 31 | * @(#) coda/coda_opstats.h,v 1.1.1.1 1998/08/29 21:26:46 rvb Exp $ |
| 32 | */ |
| 33 | |
| 34 | /* |
| 35 | * operation stats: what the minicache can intercept that |
| 36 | * *isn't* seen by venus. These stats are kept to augment |
| 37 | * the stats maintained by the Volume-Session mechanism. |
| 38 | */ |
| 39 | |
| 40 | /* vfsops: |
| 41 | * mount: not currently bounced to Venus |
| 42 | * umount: nope |
| 43 | * root: only first call, rest is cached. |
| 44 | * statfs: none (bogus) |
| 45 | * sync: none (bogus) |
| 46 | * vget: all |
| 47 | */ |
| 48 | |
| 49 | #define CODA_MOUNT_STATS 0 |
| 50 | #define CODA_UMOUNT_STATS 1 |
| 51 | #define CODA_ROOT_STATS 2 |
| 52 | #define CODA_STATFS_STATS 3 |
| 53 | #define CODA_SYNC_STATS 4 |
| 54 | #define CODA_VGET_STATS 5 |
| 55 | #define CODA_VFSOPS_SIZE 6 |
| 56 | |
| 57 | /* vnodeops: |
| 58 | * open: all to venus |
| 59 | * close: all to venus |
| 60 | * rdrw: bogus. Maybe redirected to UFS. |
| 61 | * May call open/close for internal opens/closes |
| 62 | * (Does exec not call open?) |
| 63 | * ioctl: causes a lookupname |
| 64 | * passes through |
| 65 | * select: can't get there from here. |
| 66 | * getattr: can be satsified by cache |
| 67 | * setattr: all go through |
| 68 | * access: can be satisfied by cache |
| 69 | * readlink: can be satisfied by cache |
| 70 | * fsync: passes through |
| 71 | * inactive: passes through |
| 72 | * lookup: can be satisfied by cache |
| 73 | * create: passes through |
| 74 | * remove: passes through |
| 75 | * link: passes through |
| 76 | * rename: passes through |
| 77 | * mkdir: passes through |
| 78 | * rmdir: passes through |
| 79 | * symlink: passes through |
| 80 | * readdir: may be redirected to UFS |
| 81 | * may cause an "internal" open/close |
| 82 | */ |
| 83 | |
| 84 | #define CODA_OPEN_STATS 0 |
| 85 | #define CODA_CLOSE_STATS 1 |
| 86 | #define CODA_RDWR_STATS 2 |
| 87 | #define CODA_IOCTL_STATS 3 |
| 88 | #define CODA_SELECT_STATS 4 |
| 89 | #define CODA_GETATTR_STATS 5 |
| 90 | #define CODA_SETATTR_STATS 6 |
| 91 | #define CODA_ACCESS_STATS 7 |
| 92 | #define CODA_READLINK_STATS 8 |
| 93 | #define CODA_FSYNC_STATS 9 |
| 94 | #define CODA_INACTIVE_STATS 10 |
| 95 | #define CODA_LOOKUP_STATS 11 |
| 96 | #define CODA_CREATE_STATS 12 |
| 97 | #define CODA_REMOVE_STATS 13 |
| 98 | #define CODA_LINK_STATS 14 |
| 99 | #define CODA_RENAME_STATS 15 |
| 100 | #define CODA_MKDIR_STATS 16 |
| 101 | #define CODA_RMDIR_STATS 17 |
| 102 | #define CODA_SYMLINK_STATS 18 |
| 103 | #define CODA_READDIR_STATS 19 |
| 104 | #define CODA_VNODEOPS_SIZE 20 |
| 105 | |
| 106 | /* |
| 107 | * I propose the following structres: |
| 108 | */ |
| 109 | |
| 110 | struct coda_op_stats { |
| 111 | int opcode; /* vfs opcode */ |
| 112 | long entries; /* number of times call attempted */ |
| 113 | long sat_intrn; /* number of times call satisfied by cache */ |
| 114 | long unsat_intrn; /* number of times call failed in cache, but |
| 115 | was not bounced to venus proper. */ |
| 116 | long gen_intrn; /* number of times call generated internally */ |
| 117 | /* (do we need that?) */ |
| 118 | }; |
| 119 | |
| 120 | /* |
| 121 | * With each call to the minicache, we'll bump the counters whenver |
| 122 | * a call is satisfied internally (through the cache or through a |
| 123 | * redirect), and whenever an operation is caused internally. |
| 124 | * Then, we can add the total operations caught by the minicache |
| 125 | * to the world-wide totals, and leave a caveat for the specific |
| 126 | * graphs later. |
| 127 | */ |
| 128 | |