bsd/sys/vmmeter.h

   1 /*
   2  * Copyright (c) 2000 Apple Computer, Inc. All rights reserved.
   3  *
   4  * @APPLE_LICENSE_HEADER_START@
   5  *
   6  * The contents of this file constitute Original Code as defined in and
   7  * are subject to the Apple Public Source License Version 1.1 (the
   8  * "License").  You may not use this file except in compliance with the
   9  * License.  Please obtain a copy of the License at
  10  * http://www.apple.com/publicsource and read it before using this file.
  11  *
  12  * This Original Code and all software distributed under the License are
  13  * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
  14  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
  15  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
  16  * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT.  Please see the
  17  * License for the specific language governing rights and limitations
  18  * under the License.
  19  *
  20  * @APPLE_LICENSE_HEADER_END@
  21  */
  22 /* Copyright (c) 1995 NeXT Computer, Inc. All Rights Reserved */
  23 /*-
  24  * Copyright (c) 1982, 1986, 1993
  25  *      The Regents of the University of California.  All rights reserved.
  26  *
  27  * Redistribution and use in source and binary forms, with or without
  28  * modification, are permitted provided that the following conditions
  29  * are met:
  30  * 1. Redistributions of source code must retain the above copyright
  31  *    notice, this list of conditions and the following disclaimer.
  32  * 2. Redistributions in binary form must reproduce the above copyright
  33  *    notice, this list of conditions and the following disclaimer in the
  34  *    documentation and/or other materials provided with the distribution.
  35  * 3. All advertising materials mentioning features or use of this software
  36  *    must display the following acknowledgement:
  37  *      This product includes software developed by the University of
  38  *      California, Berkeley and its contributors.
  39  * 4. Neither the name of the University nor the names of its contributors
  40  *    may be used to endorse or promote products derived from this software
  41  *    without specific prior written permission.
  42  *
  43  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
  44  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  45  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  46  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
  47  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  48  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  49  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  50  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  51  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  52  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  53  * SUCH DAMAGE.
  54  *
  55  *      @(#)vmmeter.h   8.2 (Berkeley) 7/10/94
  56  */
  57
  58 #ifndef _SYS_VMMETER_H_
  59 #define _SYS_VMMETER_H_
  60
  61 /*
  62  * System wide statistics counters.
  63  */
  64 struct vmmeter {
  65         /*
  66          * General system activity.
  67          */
  68         u_int v_swtch;          /* context switches */
  69         u_int v_trap;           /* calls to trap */
  70         u_int v_syscall;        /* calls to syscall() */
  71         u_int v_intr;           /* device interrupts */
  72         u_int v_soft;           /* software interrupts */
  73         u_int v_faults;         /* total faults taken */
  74         /*
  75          * Virtual memory activity.
  76          */
  77         u_int v_lookups;        /* object cache lookups */
  78         u_int v_hits;           /* object cache hits */
  79         u_int v_vm_faults;      /* number of address memory faults */
  80         u_int v_cow_faults;     /* number of copy-on-writes */
  81         u_int v_swpin;          /* swapins */
  82         u_int v_swpout;         /* swapouts */
  83         u_int v_pswpin;         /* pages swapped in */
  84         u_int v_pswpout;        /* pages swapped out */
  85         u_int v_pageins;        /* number of pageins */
  86         u_int v_pageouts;       /* number of pageouts */
  87         u_int v_pgpgin;         /* pages paged in */
  88         u_int v_pgpgout;        /* pages paged out */
  89         u_int v_intrans;        /* intransit blocking page faults */
  90         u_int v_reactivated;    /* number of pages reactivated from free list */
  91         u_int v_rev;            /* revolutions of the hand */
  92         u_int v_scan;           /* scans in page out daemon */
  93         u_int v_dfree;          /* pages freed by daemon */
  94         u_int v_pfree;          /* pages freed by exiting processes */
  95         u_int v_zfod;           /* pages zero filled on demand */
  96         u_int v_nzfod;          /* number of zfod's created */
  97         /*
  98          * Distribution of page usages.
  99          */
 100         u_int v_page_size;      /* page size in bytes */
 101         u_int v_kernel_pages;   /* number of pages in use by kernel */
 102         u_int v_free_target;    /* number of pages desired free */
 103         u_int v_free_min;       /* minimum number of pages desired free */
 104         u_int v_free_count;     /* number of pages free */
 105         u_int v_wire_count;     /* number of pages wired down */
 106         u_int v_active_count;   /* number of pages active */
 107         u_int v_inactive_target; /* number of pages desired inactive */
 108         u_int v_inactive_count;  /* number of pages inactive */
 109 };
 110 #ifdef KERNEL
 111 extern struct   vmmeter cnt;
 112 #endif
 113
 114 /* systemwide totals computed every five seconds */
 115 struct vmtotal
 116 {
 117         int16_t t_rq;           /* length of the run queue */
 118         int16_t t_dw;           /* jobs in ``disk wait'' (neg priority) */
 119         int16_t t_pw;           /* jobs in page wait */
 120         int16_t t_sl;           /* jobs sleeping in core */
 121         int16_t t_sw;           /* swapped out runnable/short block jobs */
 122         int32_t t_vm;           /* total virtual memory */
 123         int32_t t_avm;          /* active virtual memory */
 124         int32_t t_rm;           /* total real memory in use */
 125         int32_t t_arm;          /* active real memory */
 126         int32_t t_vmshr;        /* shared virtual memory */
 127         int32_t t_avmshr;       /* active shared virtual memory */
 128         int32_t t_rmshr;        /* shared real memory */
 129         int32_t t_armshr;       /* active shared real memory */
 130         int32_t t_free;         /* free memory pages */
 131 };
 132 #ifdef KERNEL
 133 extern struct   vmtotal total;
 134 #endif
 135
 136 #endif /* !_SYS_VMMETER_H_ */