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Annotation of XNU/osfmk/mach/vm_statistics.h, revision 1.1

1.1     ! root        1: /*
        !             2:  * Copyright (c) 2000 Apple Computer, Inc. All rights reserved.
        !             3:  *
        !             4:  * @APPLE_LICENSE_HEADER_START@
        !             5:  * 
        !             6:  * The contents of this file constitute Original Code as defined in and
        !             7:  * are subject to the Apple Public Source License Version 1.1 (the
        !             8:  * "License").  You may not use this file except in compliance with the
        !             9:  * License.  Please obtain a copy of the License at
        !            10:  * http://www.apple.com/publicsource and read it before using this file.
        !            11:  * 
        !            12:  * This Original Code and all software distributed under the License are
        !            13:  * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
        !            14:  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
        !            15:  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
        !            16:  * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT.  Please see the
        !            17:  * License for the specific language governing rights and limitations
        !            18:  * under the License.
        !            19:  * 
        !            20:  * @APPLE_LICENSE_HEADER_END@
        !            21:  */
        !            22: /*
        !            23:  * @OSF_COPYRIGHT@
        !            24:  */
        !            25: /*
        !            26:  * HISTORY
        !            27:  * 
        !            28:  * Revision 1.1.1.1  1998/09/22 21:05:31  wsanchez
        !            29:  * Import of Mac OS X kernel (~semeria)
        !            30:  *
        !            31:  * Revision 1.1.1.1  1998/03/07 02:25:46  wsanchez
        !            32:  * Import of OSF Mach kernel (~mburg)
        !            33:  *
        !            34:  * Revision 1.2.12.2  1995/01/06  19:52:25  devrcs
        !            35:  *     mk6 CR668 - 1.3b26 merge
        !            36:  *     added vm stats
        !            37:  *     [1994/10/14  03:43:30  dwm]
        !            38:  *
        !            39:  * Revision 1.2.12.1  1994/09/23  02:44:40  ezf
        !            40:  *     change marker to not FREE
        !            41:  *     [1994/09/22  21:43:49  ezf]
        !            42:  * 
        !            43:  * Revision 1.2.4.4  1993/08/03  18:30:01  gm
        !            44:  *     CR9596: Change KERNEL to MACH_KERNEL.
        !            45:  *     [1993/08/02  18:58:32  gm]
        !            46:  * 
        !            47:  * Revision 1.2.4.3  1993/06/15  20:28:27  brezak
        !            48:  *     Make xxx_vm_statistic for now.
        !            49:  *     [1993/06/14  14:11:07  brezak]
        !            50:  * 
        !            51:  * Revision 1.2.2.2  1993/06/08  19:03:02  brezak
        !            52:  *     Remove page_size from vm_statistics.
        !            53:  * 
        !            54:  * Revision 1.1.4.2  1993/06/02  23:49:41  jeffc
        !            55:  *     Added to OSF/1 R1.3 from NMK15.0.
        !            56:  *     [1993/06/02  21:18:54  jeffc]
        !            57:  * 
        !            58:  * Revision 1.2  1993/04/19  16:40:55  devrcs
        !            59:  *     ansi C conformance changes
        !            60:  *     [1993/02/02  18:55:38  david]
        !            61:  * 
        !            62:  * Revision 1.1  1992/09/30  02:32:30  robert
        !            63:  *     Initial revision
        !            64:  * 
        !            65:  * $EndLog$
        !            66:  */
        !            67: /* CMU_HIST */
        !            68: /*
        !            69:  * Revision 2.3  91/05/14  17:03:07  mrt
        !            70:  *     Correcting copyright
        !            71:  * 
        !            72:  * Revision 2.2  91/02/05  17:37:41  mrt
        !            73:  *     Changed to new Mach copyright
        !            74:  *     [91/02/01  17:22:49  mrt]
        !            75:  * 
        !            76:  * Revision 2.1  89/08/03  16:06:55  rwd
        !            77:  * Created.
        !            78:  * 
        !            79:  * Revision 2.4  89/02/25  18:42:35  gm0w
        !            80:  *     Changes for cleanup.
        !            81:  * 
        !            82:  * Revision 2.3  89/02/07  00:54:39  mwyoung
        !            83:  * Relocated from sys/vm_statistics.h
        !            84:  * 
        !            85:  * Revision 2.2  89/01/30  22:08:54  rpd
        !            86:  *     Made variable declarations use "extern".
        !            87:  *     [89/01/25  15:26:30  rpd]
        !            88:  * 
        !            89:  * 30-Sep-86  Avadis Tevanian (avie) at Carnegie-Mellon University
        !            90:  *     Changed "reclaim" to "inactive."
        !            91:  *
        !            92:  * 22-Aug-86  Michael Young (mwyoung) at Carnegie-Mellon University
        !            93:  *     Made vm_stat structure kernel-only.
        !            94:  *
        !            95:  * 22-May-86  Avadis Tevanian (avie) at Carnegie-Mellon University
        !            96:  *     Defined vm_statistics_data_t as a real typedef so that
        !            97:  *     MatchMaker can deal with it.
        !            98:  *
        !            99:  * 14-Feb-86  Avadis Tevanian (avie) at Carnegie-Mellon University
        !           100:  *     Created.
        !           101:  *
        !           102:  */
        !           103: /* CMU_ENDHIST */
        !           104: /* 
        !           105:  * Mach Operating System
        !           106:  * Copyright (c) 1991,1990,1989,1988,1987 Carnegie Mellon University
        !           107:  * All Rights Reserved.
        !           108:  * 
        !           109:  * Permission to use, copy, modify and distribute this software and its
        !           110:  * documentation is hereby granted, provided that both the copyright
        !           111:  * notice and this permission notice appear in all copies of the
        !           112:  * software, derivative works or modified versions, and any portions
        !           113:  * thereof, and that both notices appear in supporting documentation.
        !           114:  * 
        !           115:  * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
        !           116:  * CONDITION.  CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND FOR
        !           117:  * ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
        !           118:  * 
        !           119:  * Carnegie Mellon requests users of this software to return to
        !           120:  * 
        !           121:  *  Software Distribution Coordinator  or  [email protected]
        !           122:  *  School of Computer Science
        !           123:  *  Carnegie Mellon University
        !           124:  *  Pittsburgh PA 15213-3890
        !           125:  * 
        !           126:  * any improvements or extensions that they make and grant Carnegie Mellon
        !           127:  * the rights to redistribute these changes.
        !           128:  */
        !           129: /*
        !           130:  */
        !           131: /*
        !           132:  *     File:   mach/vm_statistics.h
        !           133:  *     Author: Avadis Tevanian, Jr., Michael Wayne Young, David Golub
        !           134:  *
        !           135:  *     Virtual memory statistics structure.
        !           136:  *
        !           137:  */
        !           138: 
        !           139: #ifndef        VM_STATISTICS_H_
        !           140: #define        VM_STATISTICS_H_
        !           141: 
        !           142: #include <mach/machine/vm_types.h>
        !           143: 
        !           144: struct vm_statistics {
        !           145:        integer_t       free_count;             /* # of pages free */
        !           146:        integer_t       active_count;           /* # of pages active */
        !           147:        integer_t       inactive_count;         /* # of pages inactive */
        !           148:        integer_t       wire_count;             /* # of pages wired down */
        !           149:        integer_t       zero_fill_count;        /* # of zero fill pages */
        !           150:        integer_t       reactivations;          /* # of pages reactivated */
        !           151:        integer_t       pageins;                /* # of pageins */
        !           152:        integer_t       pageouts;               /* # of pageouts */
        !           153:        integer_t       faults;                 /* # of faults */
        !           154:        integer_t       cow_faults;             /* # of copy-on-writes */
        !           155:        integer_t       lookups;                /* object cache lookups */
        !           156:        integer_t       hits;                   /* object cache hits */
        !           157: };
        !           158: 
        !           159: typedef struct vm_statistics   *vm_statistics_t;
        !           160: typedef struct vm_statistics   vm_statistics_data_t;
        !           161: 
        !           162: 
        !           163: /* included for the vm_map_page_query call */
        !           164: 
        !           165: #define VM_PAGE_QUERY_PAGE_PRESENT      0x1
        !           166: #define VM_PAGE_QUERY_PAGE_FICTITIOUS   0x2
        !           167: #define VM_PAGE_QUERY_PAGE_REF          0x4
        !           168: #define VM_PAGE_QUERY_PAGE_DIRTY        0x8
        !           169: 
        !           170: 
        !           171: /*
        !           172:  *     Each machine dependent implementation is expected to
        !           173:  *     keep certain statistics.  They may do this anyway they
        !           174:  *     so choose, but are expected to return the statistics
        !           175:  *     in the following structure.
        !           176:  */
        !           177: 
        !           178: struct pmap_statistics {
        !           179:        integer_t       resident_count; /* # of pages mapped (total)*/
        !           180:        integer_t       wired_count;    /* # of pages wired */
        !           181: };
        !           182: 
        !           183: typedef struct pmap_statistics *pmap_statistics_t;
        !           184: 
        !           185: #define VM_FLAGS_ANYWHERE      0x1
        !           186: #define VM_FLAGS_ALIAS_MASK    0xFF000000
        !           187: #define VM_GET_FLAGS_ALIAS(flags, alias)                       \
        !           188:                (alias) = ((flags) & VM_FLAGS_ALIAS_MASK) >> 24 
        !           189: #define VM_SET_FLAGS_ALIAS(flags, alias)                       \
        !           190:                (flags) = (((flags) & ~VM_FLAGS_ALIAS_MASK) |   \
        !           191:                (((alias) & ~VM_FLAGS_ALIAS_MASK) << 24))
        !           192: 
        !           193: #endif /* VM_STATISTICS_H_ */

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