osfmk/mach/vm_statistics.h

   1 /*
   2  * Copyright (c) 2000-2005 Apple Computer, Inc. All rights reserved.
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  28 /*
  29  * @OSF_COPYRIGHT@
  30  */
  31 /*
  32  * Mach Operating System
  33  * Copyright (c) 1991,1990,1989,1988,1987 Carnegie Mellon University
  34  * All Rights Reserved.
  35  *
  36  * Permission to use, copy, modify and distribute this software and its
  37  * documentation is hereby granted, provided that both the copyright
  38  * notice and this permission notice appear in all copies of the
  39  * software, derivative works or modified versions, and any portions
  40  * thereof, and that both notices appear in supporting documentation.
  41  *
  42  * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
  43  * CONDITION.  CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND FOR
  44  * ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
  45  *
  46  * Carnegie Mellon requests users of this software to return to
  47  *
  48  *  Software Distribution Coordinator  or  Software.Distribution@CS.CMU.EDU
  49  *  School of Computer Science
  50  *  Carnegie Mellon University
  51  *  Pittsburgh PA 15213-3890
  52  *
  53  * any improvements or extensions that they make and grant Carnegie Mellon
  54  * the rights to redistribute these changes.
  55  */
  56 /*
  57  */
  58 /*
  59  *      File:   mach/vm_statistics.h
  60  *      Author: Avadis Tevanian, Jr., Michael Wayne Young, David Golub
  61  *
  62  *      Virtual memory statistics structure.
  63  *
  64  */
  65
  66 #ifndef _MACH_VM_STATISTICS_H_
  67 #define _MACH_VM_STATISTICS_H_
  68
  69 #include <mach/machine/vm_types.h>
  70
  71 struct vm_statistics {
  72         natural_t       free_count;             /* # of pages free */
  73         natural_t       active_count;           /* # of pages active */
  74         natural_t       inactive_count;         /* # of pages inactive */
  75         natural_t       wire_count;             /* # of pages wired down */
  76         natural_t       zero_fill_count;        /* # of zero fill pages */
  77         natural_t       reactivations;          /* # of pages reactivated */
  78         natural_t       pageins;                /* # of pageins */
  79         natural_t       pageouts;               /* # of pageouts */
  80         natural_t       faults;                 /* # of faults */
  81         natural_t       cow_faults;             /* # of copy-on-writes */
  82         natural_t       lookups;                /* object cache lookups */
  83         natural_t       hits;                   /* object cache hits */
  84
  85         natural_t       purgeable_count;        /* # of pages purgeable */
  86         natural_t       purges;                 /* # of pages purged */
  87 };
  88
  89 typedef struct vm_statistics    *vm_statistics_t;
  90 typedef struct vm_statistics    vm_statistics_data_t;
  91
  92 struct vm_statistics_rev0 {
  93         natural_t       free_count;             /* # of pages free */
  94         natural_t       active_count;           /* # of pages active */
  95         natural_t       inactive_count;         /* # of pages inactive */
  96         natural_t       wire_count;             /* # of pages wired down */
  97         natural_t       zero_fill_count;        /* # of zero fill pages */
  98         natural_t       reactivations;          /* # of pages reactivated */
  99         natural_t       pageins;                /* # of pageins */
 100         natural_t       pageouts;               /* # of pageouts */
 101         natural_t       faults;                 /* # of faults */
 102         natural_t       cow_faults;             /* # of copy-on-writes */
 103         natural_t       lookups;                /* object cache lookups */
 104         natural_t       hits;                   /* object cache hits */
 105 };
 106
 107 typedef struct vm_statistics_rev0       *vm_statistics_rev0_t;
 108 typedef struct vm_statistics_rev0       vm_statistics_rev0_data_t;
 109
 110 /* included for the vm_map_page_query call */
 111
 112 #define VM_PAGE_QUERY_PAGE_PRESENT      0x1
 113 #define VM_PAGE_QUERY_PAGE_FICTITIOUS   0x2
 114 #define VM_PAGE_QUERY_PAGE_REF          0x4
 115 #define VM_PAGE_QUERY_PAGE_DIRTY        0x8
 116
 117 #ifdef  MACH_KERNEL_PRIVATE
 118
 119 /*
 120  *      Each machine dependent implementation is expected to
 121  *      keep certain statistics.  They may do this anyway they
 122  *      so choose, but are expected to return the statistics
 123  *      in the following structure.
 124  */
 125
 126 struct pmap_statistics {
 127         integer_t       resident_count; /* # of pages mapped (total)*/
 128         integer_t       wired_count;    /* # of pages wired */
 129 };
 130
 131 typedef struct pmap_statistics  *pmap_statistics_t;
 132
 133 #endif  /* MACH_KERNEL_PRIVATE */
 134
 135 /*
 136  * VM allocation flags:
 137  *
 138  * VM_FLAGS_FIXED
 139  *      (really the absence of VM_FLAGS_ANYWHERE)
 140  *      Allocate new VM region at the specified virtual address, if possible.
 141  *
 142  * VM_FLAGS_ANYWHERE
 143  *      Allocate new VM region anywhere it would fit in the address space.
 144  *
 145  * VM_FLAGS_PURGABLE
 146  *      Create a purgable VM object for that new VM region.
 147  *
 148  * VM_FLAGS_NO_PMAP_CHECK
 149  *      (for DEBUG kernel config only, ignored for other configs)
 150  *      Do not check that there is no stale pmap mapping for the new VM region.
 151  *      This is useful for kernel memory allocations at bootstrap when building
 152  *      the initial kernel address space while some memory is already in use.
 153  *
 154  * VM_FLAGS_OVERWRITE
 155  *      The new VM region can replace existing VM regions if necessary
 156  *      (to be used in combination with VM_FLAGS_FIXED).
 157  */
 158 #define VM_FLAGS_FIXED          0x0000
 159 #define VM_FLAGS_ANYWHERE       0x0001
 160 #define VM_FLAGS_PURGABLE       0x0002
 161 #ifdef KERNEL_PRIVATE
 162 #define VM_FLAGS_NO_PMAP_CHECK  0x0004
 163 #endif /* KERNEL_PRIVATE */
 164 #define VM_FLAGS_OVERWRITE      0x0008
 165
 166 #define VM_FLAGS_ALIAS_MASK     0xFF000000
 167 #define VM_GET_FLAGS_ALIAS(flags, alias)                        \
 168                 (alias) = ((flags) & VM_FLAGS_ALIAS_MASK) >> 24
 169 #define VM_SET_FLAGS_ALIAS(flags, alias)                        \
 170                 (flags) = (((flags) & ~VM_FLAGS_ALIAS_MASK) |   \
 171                 (((alias) & ~VM_FLAGS_ALIAS_MASK) << 24))
 172
 173 #define VM_MEMORY_MALLOC 1
 174 #define VM_MEMORY_MALLOC_SMALL 2
 175 #define VM_MEMORY_MALLOC_LARGE 3
 176 #define VM_MEMORY_MALLOC_HUGE 4
 177 #define VM_MEMORY_SBRK 5// uninteresting -- no one should call
 178 #define VM_MEMORY_REALLOC 6
 179 #define VM_MEMORY_MALLOC_TINY 7
 180
 181 #define VM_MEMORY_ANALYSIS_TOOL 10
 182
 183 #define VM_MEMORY_MACH_MSG 20
 184 #define VM_MEMORY_IOKIT 21
 185 #define VM_MEMORY_STACK  30
 186 #define VM_MEMORY_GUARD  31
 187 #define VM_MEMORY_SHARED_PMAP 32
 188 /* memory containing a dylib */
 189 #define VM_MEMORY_DYLIB 33
 190
 191 // Placeholders for now -- as we analyze the libraries and find how they
 192 // use memory, we can make these labels more specific.
 193 #define VM_MEMORY_APPKIT 40
 194 #define VM_MEMORY_FOUNDATION 41
 195 #define VM_MEMORY_COREGRAPHICS 42
 196 #define VM_MEMORY_CARBON 43
 197 #define VM_MEMORY_JAVA 44
 198 #define VM_MEMORY_ATS 50
 199
 200 /* memory allocated by the dynamic loader for itself */
 201 #define VM_MEMORY_DYLD 60
 202 /* malloc'd memory created by dyld */
 203 #define VM_MEMORY_DYLD_MALLOC 61
 204
 205 /* Reserve 240-255 for application */
 206 #define VM_MEMORY_APPLICATION_SPECIFIC_1 240
 207 #define VM_MEMORY_APPLICATION_SPECIFIC_16 255
 208
 209 #define VM_MAKE_TAG(tag) (tag<<24)
 210
 211 #endif  /* _MACH_VM_STATISTICS_H_ */