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1.1 root 1: /*
2: * Copyright (c) 1991 Regents of the University of California.
3: * All rights reserved.
4: *
5: * This code is derived from software contributed to Berkeley by
6: * The Mach Operating System project at Carnegie-Mellon University.
7: *
8: * Redistribution and use in source and binary forms, with or without
9: * modification, are permitted provided that the following conditions
10: * are met:
11: * 1. Redistributions of source code must retain the above copyright
12: * notice, this list of conditions and the following disclaimer.
13: * 2. Redistributions in binary form must reproduce the above copyright
14: * notice, this list of conditions and the following disclaimer in the
15: * documentation and/or other materials provided with the distribution.
16: * 3. All advertising materials mentioning features or use of this software
17: * must display the following acknowledgement:
18: * This product includes software developed by the University of
19: * California, Berkeley and its contributors.
20: * 4. Neither the name of the University nor the names of its contributors
21: * may be used to endorse or promote products derived from this software
22: * without specific prior written permission.
23: *
24: * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
25: * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
26: * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
27: * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
28: * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
29: * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
30: * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
31: * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
32: * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
33: * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
34: * SUCH DAMAGE.
35: *
36: * @(#)vm_statistics.h 7.2 (Berkeley) 4/21/91
37: *
38: *
39: * Copyright (c) 1987, 1990 Carnegie-Mellon University.
40: * All rights reserved.
41: *
42: * Authors: Avadis Tevanian, Jr., Michael Wayne Young, David Golub
43: *
44: * Permission to use, copy, modify and distribute this software and
45: * its documentation is hereby granted, provided that both the copyright
46: * notice and this permission notice appear in all copies of the
47: * software, derivative works or modified versions, and any portions
48: * thereof, and that both notices appear in supporting documentation.
49: *
50: * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
51: * CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND
52: * FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
53: *
54: * Carnegie Mellon requests users of this software to return to
55: *
56: * Software Distribution Coordinator or [email protected]
57: * School of Computer Science
58: * Carnegie Mellon University
59: * Pittsburgh PA 15213-3890
60: *
61: * any improvements or extensions that they make and grant Carnegie the
62: * rights to redistribute these changes.
63: */
64:
65: /*
66: * Virtual memory statistics structure.
67: */
68:
69: #ifndef _VM_STATISTICS_
70: #define _VM_STATISTICS_
71:
72: struct vm_statistics {
73: long pagesize; /* page size in bytes */
74: long free_count; /* # of pages free */
75: long active_count; /* # of pages active */
76: long inactive_count; /* # of pages inactive */
77: long wire_count; /* # of pages wired down */
78: long zero_fill_count; /* # of zero fill pages */
79: long reactivations; /* # of pages reactivated */
80: long pageins; /* # of pageins */
81: long pageouts; /* # of pageouts */
82: long faults; /* # of faults */
83: long cow_faults; /* # of copy-on-writes */
84: long lookups; /* object cache lookups */
85: long hits; /* object cache hits */
86: };
87:
88: typedef struct vm_statistics *vm_statistics_t;
89: typedef struct vm_statistics vm_statistics_data_t;
90:
91: #ifdef KERNEL
92: vm_statistics_data_t vm_stat;
93: #endif KERNEL
94:
95: /*
96: * Each machine dependent implementation is expected to
97: * keep certain statistics. They may do this anyway they
98: * so choose, but are expected to return the statistics
99: * in the following structure.
100: */
101:
102: struct pmap_statistics {
103: long resident_count; /* # of pages mapped (total)*/
104: long wired_count; /* # of pages wired */
105: };
106:
107: typedef struct pmap_statistics *pmap_statistics_t;
108: #endif _VM_STATISTICS_
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