1  /*
 2   * Copyright (c) 2000-2009 Apple Inc. All rights reserved.
 3   *
 4   * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
 5   *
 6   * This file contains Original Code and/or Modifications of Original Code
 7   * as defined in and that are subject to the Apple Public Source License
 8   * Version 2.0 (the 'License'). You may not use this file except in
 9   * compliance with the License. The rights granted to you under the License
10   * may not be used to create, or enable the creation or redistribution of,
11   * unlawful or unlicensed copies of an Apple operating system, or to
12   * circumvent, violate, or enable the circumvention or violation of, any
13   * terms of an Apple operating system software license agreement.
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15   * Please obtain a copy of the License at
16   * http://www.opensource.apple.com/apsl/ and read it before using this file.
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20   * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
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28  /*
29   * @OSF_COPYRIGHT@
30   */
31  /*
32   *	kern/host_statistics.h
33   *
34   *	Definitions for host VM/event statistics data structures.
35   *
36   */
37  
38  #ifndef _KERN_HOST_STATISTICS_H_
39  #define _KERN_HOST_STATISTICS_H_
40  
41  #include <kern/counter.h>
42  
43  SCALABLE_COUNTER_DECLARE(vm_statistics_zero_fill_count);        /* # of zero fill pages */
44  SCALABLE_COUNTER_DECLARE(vm_statistics_reactivations);          /* # of pages reactivated */
45  SCALABLE_COUNTER_DECLARE(vm_statistics_pageins);                /* # of pageins */
46  SCALABLE_COUNTER_DECLARE(vm_statistics_pageouts);               /* # of pageouts */
47  SCALABLE_COUNTER_DECLARE(vm_statistics_faults);                 /* # of faults */
48  SCALABLE_COUNTER_DECLARE(vm_statistics_cow_faults);             /* # of copy-on-writes */
49  SCALABLE_COUNTER_DECLARE(vm_statistics_lookups);                /* object cache lookups */
50  SCALABLE_COUNTER_DECLARE(vm_statistics_hits);                   /* object cache hits */
51  SCALABLE_COUNTER_DECLARE(vm_statistics_purges);                 /* # of pages purged */
52  SCALABLE_COUNTER_DECLARE(vm_statistics_decompressions);         /* # of pages decompressed */
53  SCALABLE_COUNTER_DECLARE(vm_statistics_compressions);           /* # of pages compressed */
54  SCALABLE_COUNTER_DECLARE(vm_statistics_swapins);                /* # of pages swapped in (via compression segments) */
55  SCALABLE_COUNTER_DECLARE(vm_statistics_swapouts);               /* # of pages swapped out (via compression segments) */
56  SCALABLE_COUNTER_DECLARE(vm_statistics_total_uncompressed_pages_in_compressor); /* # of pages (uncompressed) held within the compressor. */
57  
58  SCALABLE_COUNTER_DECLARE(vm_page_grab_count);
59  
60  #endif  /* _KERN_HOST_STATISTICS_H_ */