vm_statistics.h

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    1 /* 
    2  * Mach Operating System
    3  * Copyright (c) 1992,1991,1990,1989,1988,1987 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  Software.Distribution@CS.CMU.EDU
   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  * HISTORY
   28  * $Log:        vm_statistics.h,v $
   29  * Revision 2.4  93/01/14  17:49:14  danner
   30  *      Standardized include symbol name.
   31  *      [92/06/10            pds]
   32  *      64bit cleanup.
   33  *      [92/12/01            af]
   34  * 
   35  * Revision 2.3  91/05/14  17:03:07  mrt
   36  *      Correcting copyright
   37  * 
   38  * Revision 2.2  91/02/05  17:37:41  mrt
   39  *      Changed to new Mach copyright
   40  *      [91/02/01  17:22:49  mrt]
   41  * 
   42  * Revision 2.1  89/08/03  16:06:55  rwd
   43  * Created.
   44  * 
   45  * Revision 2.4  89/02/25  18:42:35  gm0w
   46  *      Changes for cleanup.
   47  * 
   48  * Revision 2.3  89/02/07  00:54:39  mwyoung
   49  * Relocated from sys/vm_statistics.h
   50  * 
   51  * Revision 2.2  89/01/30  22:08:54  rpd
   52  *      Made variable declarations use "extern".
   53  *      [89/01/25  15:26:30  rpd]
   54  * 
   55  * 30-Sep-86  Avadis Tevanian (avie) at Carnegie-Mellon University
   56  *      Changed "reclaim" to "inactive."
   57  *
   58  * 22-Aug-86  Michael Young (mwyoung) at Carnegie-Mellon University
   59  *      Made vm_stat structure kernel-only.
   60  *
   61  * 22-May-86  Avadis Tevanian (avie) at Carnegie-Mellon University
   62  *      Defined vm_statistics_data_t as a real typedef so that
   63  *      MatchMaker can deal with it.
   64  *
   65  * 14-Feb-86  Avadis Tevanian (avie) at Carnegie-Mellon University
   66  *      Created.
   67  *
   68  */
   69 /*
   70  *      File:   mach/vm_statistics.h
   71  *      Author: Avadis Tevanian, Jr., Michael Wayne Young, David Golub
   72  *
   73  *      Virtual memory statistics structure.
   74  *
   75  */
   76 
   77 #ifndef _MACH_VM_STATISTICS_H_
   78 #define _MACH_VM_STATISTICS_H_
   79 
   80 struct vm_statistics {
   81         integer_t       pagesize;               /* page size in bytes */
   82         integer_t       free_count;             /* # of pages free */
   83         integer_t       active_count;           /* # of pages active */
   84         integer_t       inactive_count;         /* # of pages inactive */
   85         integer_t       wire_count;             /* # of pages wired down */
   86         integer_t       zero_fill_count;        /* # of zero fill pages */
   87         integer_t       reactivations;          /* # of pages reactivated */
   88         integer_t       pageins;                /* # of pageins */
   89         integer_t       pageouts;               /* # of pageouts */
   90         integer_t       faults;                 /* # of faults */
   91         integer_t       cow_faults;             /* # of copy-on-writes */
   92         integer_t       lookups;                /* object cache lookups */
   93         integer_t       hits;                   /* object cache hits */
   94 };
   95 
   96 typedef struct vm_statistics    *vm_statistics_t;
   97 typedef struct vm_statistics    vm_statistics_data_t;
   98 
   99 #ifdef  KERNEL
  100 extern vm_statistics_data_t     vm_stat;
  101 #endif  /* KERNEL */
  102 
  103 /*
  104  *      Each machine dependent implementation is expected to
  105  *      keep certain statistics.  They may do this anyway they
  106  *      so choose, but are expected to return the statistics
  107  *      in the following structure.
  108  */
  109 
  110 struct pmap_statistics {
  111         integer_t               resident_count; /* # of pages mapped (total)*/
  112         integer_t               wired_count;    /* # of pages wired */
  113 };
  114 
  115 typedef struct pmap_statistics  *pmap_statistics_t;
  116 #endif  /* _MACH_VM_STATISTICS_H_ */

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FreeBSD/Linux Kernel Cross Reference sys/mach/vm_statistics.h

FreeBSD/Linux Kernel Cross Reference
sys/mach/vm_statistics.h