/* $NetBSD: coda_opstats.h,v 1.5 2005/02/26 23:04:16 perry Exp $ */ /* * * 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. * * @(#) coda/coda_opstats.h,v 1.1.1.1 1998/08/29 21:26:46 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 CODA_MOUNT_STATS 0 #define CODA_UMOUNT_STATS 1 #define CODA_ROOT_STATS 2 #define CODA_STATFS_STATS 3 #define CODA_SYNC_STATS 4 #define CODA_VGET_STATS 5 #define CODA_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 CODA_OPEN_STATS 0 #define CODA_CLOSE_STATS 1 #define CODA_RDWR_STATS 2 #define CODA_IOCTL_STATS 3 #define CODA_SELECT_STATS 4 #define CODA_GETATTR_STATS 5 #define CODA_SETATTR_STATS 6 #define CODA_ACCESS_STATS 7 #define CODA_READLINK_STATS 8 #define CODA_FSYNC_STATS 9 #define CODA_INACTIVE_STATS 10 #define CODA_LOOKUP_STATS 11 #define CODA_CREATE_STATS 12 #define CODA_REMOVE_STATS 13 #define CODA_LINK_STATS 14 #define CODA_RENAME_STATS 15 #define CODA_MKDIR_STATS 16 #define CODA_RMDIR_STATS 17 #define CODA_SYMLINK_STATS 18 #define CODA_READDIR_STATS 19 #define CODA_VNODEOPS_SIZE 20 /* * I propose the following structres: */ struct coda_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. */