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Annotation of kernel/mach/vm_statistics.h, revision 1.1.1.1

1.1       root        1: /*
                      2:  * Copyright (c) 1999 Apple Computer, Inc. All rights reserved.
                      3:  *
                      4:  * @APPLE_LICENSE_HEADER_START@
                      5:  * 
                      6:  * Portions Copyright (c) 1999 Apple Computer, Inc.  All Rights
                      7:  * Reserved.  This file contains Original Code and/or Modifications of
                      8:  * Original Code as defined in and that are subject to the Apple Public
                      9:  * Source License Version 1.1 (the "License").  You may not use this file
                     10:  * except in compliance with the License.  Please obtain a copy of the
                     11:  * License at http://www.apple.com/publicsource and read it before using
                     12:  * this file.
                     13:  * 
                     14:  * The Original Code and all software distributed under the License are
                     15:  * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
                     16:  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
                     17:  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
                     18:  * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT.  Please see the
                     19:  * License for the specific language governing rights and limitations
                     20:  * under the License.
                     21:  * 
                     22:  * @APPLE_LICENSE_HEADER_END@
                     23:  */
                     24: 
                     25: /* 
                     26:  * Mach Operating System
                     27:  * Copyright (c) 1992,1991,1990,1989,1988,1987 Carnegie Mellon University
                     28:  * All Rights Reserved.
                     29:  * 
                     30:  * Permission to use, copy, modify and distribute this software and its
                     31:  * documentation is hereby granted, provided that both the copyright
                     32:  * notice and this permission notice appear in all copies of the
                     33:  * software, derivative works or modified versions, and any portions
                     34:  * thereof, and that both notices appear in supporting documentation.
                     35:  * 
                     36:  * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
                     37:  * CONDITION.  CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND FOR
                     38:  * ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
                     39:  * 
                     40:  * Carnegie Mellon requests users of this software to return to
                     41:  * 
                     42:  *  Software Distribution Coordinator  or  [email protected]
                     43:  *  School of Computer Science
                     44:  *  Carnegie Mellon University
                     45:  *  Pittsburgh PA 15213-3890
                     46:  * 
                     47:  * any improvements or extensions that they make and grant Carnegie Mellon
                     48:  * the rights to redistribute these changes.
                     49:  */
                     50: /*
                     51:  *     File:   mach/vm_statistics.h
                     52:  *     Author: Avadis Tevanian, Jr., Michael Wayne Young, David Golub
                     53:  *
                     54:  *     Virtual memory statistics structure.
                     55:  *
                     56:  */
                     57: 
                     58: #ifndef        _MACH_VM_STATISTICS_H_
                     59: #define        _MACH_VM_STATISTICS_H_
                     60: 
                     61: #import <mach/machine/vm_types.h>
                     62: 
                     63: struct vm_statistics {
                     64:        integer_t       pagesize;               /* page size in bytes */
                     65:        integer_t       free_count;             /* # of pages free */
                     66:        integer_t       active_count;           /* # of pages active */
                     67:        integer_t       inactive_count;         /* # of pages inactive */
                     68:        integer_t       wire_count;             /* # of pages wired down */
                     69:        integer_t       zero_fill_count;        /* # of zero fill pages */
                     70:        integer_t       reactivations;          /* # of pages reactivated */
                     71:        integer_t       pageins;                /* # of pageins */
                     72:        integer_t       pageouts;               /* # of pageouts */
                     73:        integer_t       faults;                 /* # of faults */
                     74:        integer_t       cow_faults;             /* # of copy-on-writes */
                     75:        integer_t       lookups;                /* object cache lookups */
                     76:        integer_t       hits;                   /* object cache hits */
                     77: };
                     78: 
                     79: typedef struct vm_statistics   *vm_statistics_t;
                     80: typedef struct vm_statistics   vm_statistics_data_t;
                     81: 
                     82: #ifdef KERNEL
                     83: extern vm_statistics_data_t    vm_stat;
                     84: #endif /* KERNEL */
                     85: 
                     86: /*
                     87:  *     Each machine dependent implementation is expected to
                     88:  *     keep certain statistics.  They may do this anyway they
                     89:  *     so choose, but are expected to return the statistics
                     90:  *     in the following structure.
                     91:  */
                     92: 
                     93: struct pmap_statistics {
                     94:        integer_t               resident_count; /* # of pages mapped (total)*/
                     95:        integer_t               wired_count;    /* # of pages wired */
                     96: };
                     97: 
                     98: typedef struct pmap_statistics *pmap_statistics_t;
                     99: #endif /* _MACH_VM_STATISTICS_H_ */

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