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Annotation of OSKit-Mach/include/mach/vm_statistics.h, revision 1.1

1.1     ! root        1: /* 
        !             2:  * Mach Operating System
        !             3:  * Copyright (c) 1993-1987 Carnegie Mellon University
        !             4:  * All Rights Reserved.
        !             5:  * 
        !             6:  * Permission to use, copy, modify and distribute this software and its
        !             7:  * documentation is hereby granted, provided that both the copyright
        !             8:  * notice and this permission notice appear in all copies of the
        !             9:  * software, derivative works or modified versions, and any portions
        !            10:  * thereof, and that both notices appear in supporting documentation.
        !            11:  * 
        !            12:  * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
        !            13:  * CONDITION.  CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND FOR
        !            14:  * ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
        !            15:  * 
        !            16:  * Carnegie Mellon requests users of this software to return to
        !            17:  * 
        !            18:  *  Software Distribution Coordinator  or  [email protected]
        !            19:  *  School of Computer Science
        !            20:  *  Carnegie Mellon University
        !            21:  *  Pittsburgh PA 15213-3890
        !            22:  * 
        !            23:  * any improvements or extensions that they make and grant Carnegie Mellon
        !            24:  * the rights to redistribute these changes.
        !            25:  */
        !            26: /*
        !            27:  *     File:   mach/vm_statistics.h
        !            28:  *     Author: Avadis Tevanian, Jr., Michael Wayne Young, David Golub
        !            29:  *
        !            30:  *     Virtual memory statistics structure.
        !            31:  *
        !            32:  */
        !            33: 
        !            34: #ifndef        _MACH_VM_STATISTICS_H_
        !            35: #define        _MACH_VM_STATISTICS_H_
        !            36: 
        !            37: #include <mach/machine/vm_types.h>
        !            38: 
        !            39: struct vm_statistics {
        !            40:        integer_t       pagesize;               /* page size in bytes */
        !            41:        integer_t       free_count;             /* # of pages free */
        !            42:        integer_t       active_count;           /* # of pages active */
        !            43:        integer_t       inactive_count;         /* # of pages inactive */
        !            44:        integer_t       wire_count;             /* # of pages wired down */
        !            45:        integer_t       zero_fill_count;        /* # of zero fill pages */
        !            46:        integer_t       reactivations;          /* # of pages reactivated */
        !            47:        integer_t       pageins;                /* # of pageins */
        !            48:        integer_t       pageouts;               /* # of pageouts */
        !            49:        integer_t       faults;                 /* # of faults */
        !            50:        integer_t       cow_faults;             /* # of copy-on-writes */
        !            51:        integer_t       lookups;                /* object cache lookups */
        !            52:        integer_t       hits;                   /* object cache hits */
        !            53: };
        !            54: 
        !            55: typedef struct vm_statistics   *vm_statistics_t;
        !            56: typedef struct vm_statistics   vm_statistics_data_t;
        !            57: 
        !            58: #ifdef MACH_KERNEL
        !            59: extern vm_statistics_data_t    vm_stat;
        !            60: #endif /* MACH_KERNEL */
        !            61: 
        !            62: /*
        !            63:  *     Each machine dependent implementation is expected to
        !            64:  *     keep certain statistics.  They may do this anyway they
        !            65:  *     so choose, but are expected to return the statistics
        !            66:  *     in the following structure.
        !            67:  */
        !            68: 
        !            69: struct pmap_statistics {
        !            70:        integer_t               resident_count; /* # of pages mapped (total)*/
        !            71:        integer_t               wired_count;    /* # of pages wired */
        !            72: };
        !            73: 
        !            74: typedef struct pmap_statistics *pmap_statistics_t;
        !            75: #endif /* _MACH_VM_STATISTICS_H_ */

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